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Manual Cisco Systems IP phone 7960

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  • Cisco Systems IP phone 7960 - page 1

    170 W est Tas man Dri ve San Jose , CA 95134 -1706 USA http://ww w.cisco.com Cisco S yste ms, Inc . Corporate Headquarters Tel: 800 553 -NE TS (6387 ) 408 526-400 0 Fax: 408 526-410 0 Cisco SIP IP Phone 7960 A dministrator Guide V ersion 2 .0 Custome r Order N umber : DOC-78 10497= Text Pa rt Nu mber: 78 -10497 -02 ...

  • Cisco Systems IP phone 7960 - page 2

    THE SPECIFICA TIONS AND INFORMA T ION REGARDING TH E PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NO TICE. ALL ST A TEMENTS, I NF ORMA TI ON, AND RECOMM ENDA TIONS IN THIS MANUAL ARE B ELI EVED TO BE ACCURA TE BUT ARE PRESENTED WITHOUT W ARRAN TY OF A NY KIND, EXPRESS OR IMPLIED. USERS MUST T AKE FULL RESPONSIBI LITY FOR THEIR APPLICA TION ...

  • Cisco Systems IP phone 7960 - page 3

    iii Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 CONTENTS About This Gui de ix Overvi ew ix Who S hould Us e This Gu ide ix Object ives x Organi zation x Relat ed Do cume ntatio n xi Document Conventio ns xi Obtain ing Documentat ion xv World Wide Web xv Document ation CD-ROM xv Orderi ng Documentati on xv Obtain ing Technica l Assist ...

  • Cisco Systems IP phone 7960 - page 4

    Contents iv Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 What is the Cisco SIP IP Phone 7960 ? 1-5 Support ed Featur es 1-7 Support ed Protoc ols 1-10 Prereq uisites 1-12 Cisco SI P IP Phone Conne ctions 1-13 Connect ing to t he Network 1-13 Connect ing to P ower 1-14 Using a Hea dset 1-15 The Cisc o SIP IP Phone wit h a Cat alyst Switc ...

  • Cisco Systems IP phone 7960 - page 5

    v Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Contents Using th e Cisco SIP IP Ph one Menu Inte rface 2-21 Reading the Cisco SIP IP Pho ne Icons 2-22 Customi zing the Cisco SI P IP Phone Ring Ty pe s 2-24 Creati ng Dial Pl ans 2-24 CHAPTER 3 Managing C isc o SIP IP Phones 3-1 Enteri ng Confi guration Mo de 3-1 Unlocki ng Confi gurati ...

  • Cisco Systems IP phone 7960 - page 6

    Contents vi Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 APPE NDIX A SIP C omp lianc e w ith RF C-25 43 I nform atio n A-1 SIP Func tions A-2 SIP Method s A-2 SIP Respo nses A- 3 1xx Respo nse —Informati on Responses A-4 2xx Respo nse —Successfu l Responses A-4 3xx Respo nse —Redirect ion Respon ses A-5 4xx Respo nse—Reque st Fa ...

  • Cisco Systems IP phone 7960 - page 7

    vii Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Contents Cisco SI P IP Phone-to -Ci sco SIP IP Pho ne Net work Call For warding (Busy) B- 44 Cisco SI P IP Phone-to -Ci sco SIP IP Pho ne Net work Call For warding (No Answer) B-48 Cisco SI P IP Phone-to C is co SIP IP Phone 3-Way Ca lling B- 52 Call Fl ow Scenarios for Faile d Calls B- ...

  • Cisco Systems IP phone 7960 - page 8

    Contents viii Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 GLOSSA RY INDEX ...

  • Cisco Systems IP phone 7960 - page 9

    ix Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 About This Guide Overview The Cisco Se ssion Initiation Pr otocol (S IP) IP Phone 79 60 Ad min istrator Guide pro vides infor mation about ho w to setup , con nect ca bles to, a n d co nfigur e a Cisco SIP IP phone 7 960 ( he reafte r re ferr ed to a s a Cisc o SIP IP phon e). Th e admin ...

  • Cisco Systems IP phone 7960 - page 10

    About This Guide Objectives x Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Objectives The Cisco SIP IP Pho ne 79 60 Ad m inistrator Guide provides necessary information to get the Cisco SI P IP phone operational in a V oice-ov er-IP (V oIP) network. It is not the intent of this administrator guide to provide informat ion on how to imple ...

  • Cisco Systems IP phone 7960 - page 11

    xi Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 About Thi s Guide Rela te d Do cumentat ion Related Documentation The follo wing is a list of related Cisco SIP V oIP publications. Fo r more information about imple menting a SI P V oIP network re fer to the f ollowing publications: • Session Initiation Pr otoc ol Gateway Call Flows ? ...

  • Cisco Systems IP phone 7960 - page 12

    About This Guide Document C onventions xii Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Notes use the following con ventions: Note Means r eader take no te . Notes co ntain helpful suggest ions or references to material not cov ered in the pub lication. Cautions use the following con ventions: Cautio n Mean s rea d e r b e c a re f u l ...

  • Cisco Systems IP phone 7960 - page 13

    xiii Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 About Thi s Guide Docum ent C onventi ons Va r o i t u s Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kui n työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin li ittyvistä vaaroista ja tavanomaisista onnett ...

  • Cisco Systems IP phone 7960 - page 14

    About This Guide Document C onventions xiv Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Advars el Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr , må du være oppmerksom på de faremomentene som elektri ske kretser innebærer , samt gjøre deg kjent med ...

  • Cisco Systems IP phone 7960 - page 15

    xv Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 About Thi s Guide Obt ai n ing Docume nt ation Obtaining Documentation World Wid e Web Y ou can acc e ss the most curren t Cisco docume ntation on the W orld W ide W e b at http://w ww .cisco.com , h ttp://www-ch ina.cisc o.com, or http://www-europe.cisco.com. Documentation CD-ROM Cisco ...

  • Cisco Systems IP phone 7960 - page 16

    About This Guide Obtaining Technical As sistance xvi Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco Connection Online Cisco continues to rev olutionize how b usiness is done on th e Internet. Cisco Connection Online is the foundation of a suite of interacti ve, network ed services that pro vides immediate, open access to Cisco info ...

  • Cisco Systems IP phone 7960 - page 17

    xvii Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 About Thi s Guide Obta ining T echni cal As sistan ce T o display the T A C web site that includes links to technical support information and softwa re u pgrad es an d for r eq ues ting T AC support, use www .cisco.co m/techsupport . T o conta c t by e-mail, use one of the follo wing: ...

  • Cisco Systems IP phone 7960 - page 18

    About This Guide Obtaining Technical As sistance xviii Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 ...

  • Cisco Systems IP phone 7960 - page 19

    C HAPTER 1-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 1 Product Overview This chap ter contains the follo wing inform ation about the Cisc o SIP IP phone: • What is Session Initiation Protocol?, p age 1-1 • What is the Cisco SIP I P Ph one 7 960 ?, pa ge 1-5 • Prerequisites, page 1-12 • Cisco SIP IP Phone Co nnectio ns, pa ...

  • Cisco Systems IP phone 7960 - page 20

    Chapt er 1 Product Over view What is Se ss ion In it iation Prot ocol? 1-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 SIP provides the capabilities to: • Determine the location of the target end point—SIP supports address resolution, name mapping, and call redirection. • Determine the media capabilities of t h e tar get end poin ...

  • Cisco Systems IP phone 7960 - page 21

    1-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew What is Session Initiatio n Protocol? Compon ents of S IP SIP is a peer -to-peer protocol. The peers in a session are ca lled User Agents (U As). A user agent can function in one o f the following roles: • User agent client (U A C)—A client application th ...

  • Cisco Systems IP phone 7960 - page 22

    Chapt er 1 Product Over view What is Se ss ion In it iation Prot ocol? 1-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e 1 -1 SIP Ar chi tectur e SIP Cl ie nt s SIP clients include: • Phones—C an act as either a U A S or U AC. Softphones (PCs that have phone capabilities i nstalled) and Cisco SIP IP pho nes can initiate SIP r ...

  • Cisco Systems IP phone 7960 - page 23

    1-5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew What is the C isco SIP IP Phone 7960? SIP Se rv er s SIP ser vers in clude: • Proxy serv er—The proxy server is an int ermediate de vice that recei ves SIP requests fro m a client and then forwar ds the requ ests on the client’ s beh alf. Basically , pr ...

  • Cisco Systems IP phone 7960 - page 24

    Chapt er 1 Product Over view What is the Cisc o SIP IP Phone 79 60? 1-6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figure 1-2 illustrates physical features of the Ci sco SI P I P p hon e: Figur e 1 -2 Cisco SIP IP Phone Ph ysical F eatur es • LCD scre en—Des ktop which displa ys information ab out your Cisco SIP IP phone , such as ...

  • Cisco Systems IP phone 7960 - page 25

    1-7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew What is the C isco SIP IP Phone 7960? • On-screen mode b uttons—Retrie ves information about current settings, recent calls, av ailable ser v ices, and v oice mail messages. • V olum e buttons—Adjusts the volume of the handset, headse t, speaker , rin ...

  • Cisco Systems IP phone 7960 - page 26

    Chapt er 1 Product Over view What is the Cisc o SIP IP Phone 79 60? 1-8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • Ability to: – Configure Ethernet port mod e and speed – Re gister wit h or unre gist er from a proxy serv er – Specify a TFTP boot d ire ctory – Configure a labe l for pho ne ide ntification displa y purp ose ...

  • Cisco Systems IP phone 7960 - page 27

    1-9 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew What is the C isco SIP IP Phone 7960? • Message W aiting Indication (via unsolicited NO TIFY)—Lights to indicate that a ne w voice message is in a sub scriber’ s m ailbox . If the subscriber listens to the message b ut does not sav e or delete the messa ...

  • Cisco Systems IP phone 7960 - page 28

    Chapt er 1 Product Over view What is the Cisc o SIP IP Phone 79 60? 1-10 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 – Direct number dial ing —Allo ws users to initiate or recei ve a call using a standard E.164 num ber format in a local, national, o r internat io nal format . – Direct URL dia ling —Prov ides the abil ity to pla ...

  • Cisco Systems IP phone 7960 - page 29

    1-11 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew What is the C isco SIP IP Phone 7960? • Int ernet Co ntrol Messa ge Prot ocol (I CMP) ICMP is a n etwork layer I nte rnet protocol tha t enables hosts to send error or control messa ges to other hosts. ICM P also provides other information rele van t to IP ...

  • Cisco Systems IP phone 7960 - page 30

    Chapt er 1 Product Over view Prerequis ites 1-12 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • T rivial File T ransfer Protocol (TFTP) TFTP allo ws file s to be transferred from one compu ter to anothe r ov er a network. The Cisc o SIP I P ph one u ses T FTP to d ownload configuration files and software upda tes. • User D atagr am ...

  • Cisco Systems IP phone 7960 - page 31

    1-13 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew Cisco SI P IP Phone Connectio ns Cisco SIP IP Phone Connections The Cisc o SI P I P ph one has conn ec tions for con necting to th e data ne twork, f or providing po wer to the pho ne, and for c onnectin g a headset to the phon e. Figure 1-3 illustrates the ...

  • Cisco Systems IP phone 7960 - page 32

    Chapt er 1 Product Over view Cisco SIP I P Phon e Connectio ns 1-14 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Network Port (10/100 SW) Use the network port to conne ct the phone to the network. Y ou must use a straight-throu gh cable o n this po rt. The ph one c an also obtai n inline power from the Cisco Catalyst switch over this co ...

  • Cisco Systems IP phone 7960 - page 33

    1-15 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 1 Product Overv iew Cisco SI P IP Phone Connectio ns Note Only th e network port (l abeled 10/10 0 SW) supports inlin e po w er from the Cisco Catalyst switches. For redundancy , you can use the Cisco A C adapte r e ven if you are using inline po wer from the Cisco Catalyst swi ...

  • Cisco Systems IP phone 7960 - page 34

    Chapt er 1 Product Over view The Cisco SIP IP Phone with a Catalyst Switch 1-16 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 The Cisco SI P IP Phone with a Catalyst Swit ch T o function in th e IP tele phony network, the C is co SIP IP pho ne m ust be connect ed to a net working de vice, su ch as a Cata lyst swit ch, to obtain netw ork ...

  • Cisco Systems IP phone 7960 - page 35

    C HAPTER 2-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 2 Getting Started with Your Cisco SIP IP Phone This chapte r explains the Cisco SIP IP phone ini tializat ion and the process that you should fo llow to install and c onnec t the C isco SIP IP phone. This chapter pro vid es the follow ing major sections: • Initialization Pr o ...

  • Cisco Systems IP phone 7960 - page 36

    Chapter 2 Ge tting Started with Your Cisco SIP IP Phone Initiali zation Proc ess Over view 2-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 During the initializati o n process, the following e vents take place: 1. The stor ed image is l oaded. The Cisco SIP IP ph one has non- v olatile Flash mem ory in which it stores the firmware im ag ...

  • Cisco Systems IP phone 7960 - page 37

    2-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone Installing the Cisco SIP IP Phone This section c ontains infor mation on how to install Cisc o SIP I P p hon es in y our IP network. Before getting starte d , read over the information in this sect ...

  • Cisco Systems IP phone 7960 - page 38

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Downloading Files to Your TFTP Server Before installin g the Cisco SIP IP phone s, copy the following files from CCO to the root d ire ctory of you r TFTP server . File Description OS79XX. TXT (Requir ...

  • Cisco Systems IP phone 7960 - page 39

    2-5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone Configuring SIP Parameters Note Th is se ction de scribe s how to configure the b asic SIP pa ram eters that are required for the ph one to ope rate in a SIP V oIP en viro nment. For a complete lis ...

  • Cisco Systems IP phone 7960 - page 40

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Configuring SIP Par ameters via a TFTP Server If you ar e configuring SI P p aram eters via a T FTP server, you must us e configuration files. There ar e two co nfiguration files that you c an use to ...

  • Cisco Systems IP phone 7960 - page 41

    2-7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone • The de fault configuration file mu st be sto red in the r oot directo ry of the T FTP server . The phone-spe cific conf igur ation file can be stored in the root directory or in a sub direc tor ...

  • Cisco Systems IP phone 7960 - page 42

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 By maintaining these parameters in the def a ult conf igu ration f ile, you can perform global chang es, such as upgr ading the ima ge version, without having to modify the phone -spec ific con figura ...

  • Cisco Systems IP phone 7960 - page 43

    2-9 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone The fo llowing is an exam ple of a SI P d efaul t co nfiguration file: ; sip default configuration file #Image Version image_version:P0S3 xxyy ; #Proxy server address proxy1_address: 192.168.1.1 ; ...

  • Cisco Systems IP phone 7960 - page 44

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-10 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Proced ure Step 1 Using an ASCII edit or , create a ph o ne-specif ic config uratio n f ile for each p hone that you plan to install. In the phone-specific confi guration f ile, define va lues for th ...

  • Cisco Systems IP phone 7960 - page 45

    2-11 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone Manually Configuring the SIP Parameters If you did not conf igure the SIP pa rameters via a TFT P server , you m ust manually configure them afte r you have connected the phone as describe d in th ...

  • Cisco Systems IP phone 7960 - page 46

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-12 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step 5 Highlight and press the Select soft key to co nfigure th e fo llowing p aramete rs: • Name—(Re quired) Number or e -mail address used whe n registering. When enterin g a numb er, enter the ...

  • Cisco Systems IP phone 7960 - page 47

    2-13 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone Configuring Network Parameters Note Th is se ction de scribe s how to configure the b asic n etwork param eters that are required fo r the phone to operate on th e networ k. For a complete list of ...

  • Cisco Systems IP phone 7960 - page 48

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-14 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Note By de fault, DHCP is enabled on yo ur phone. Bef ore you can manua lly conf igure the networ k para meters , you m ust di sabl e DHCP after conn ecting your pho ne to a power supply . Configurin ...

  • Cisco Systems IP phone 7960 - page 49

    2-15 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone • When configuring a dom ain name: – Press the Number soft ke y if entering a n umerical ID or pr ess the Alpha soft key to enter a name. – If entering letters, use the num bers on the dial ...

  • Cisco Systems IP phone 7960 - page 50

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-16 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • Domain Name—Name of th e DNS domain in whic h the phone resides. • DNS Servers 1 through 5—IP ad dress of the DNS server used by the phone to result name s to IP a ddress es. The phone will ...

  • Cisco Systems IP phone 7960 - page 51

    2-17 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone Figur e 2-1 Cisco SIP IP Phone Cable Connec tions Proced ure Step 1 Connect a Ca tegory 3 or 5 straight-th rough Ethe rnet cable fr om the switch or hub to the network p ort on the phone . See “ ...

  • Cisco Systems IP phone 7960 - page 52

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Installing the Cisco SIP IP Phone 2-18 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step 3 Connect a Category 3 or 5 straight-th rou gh Ethern et ca ble fro m anothe r ne twork de vice, such as a deskt o p co mputer , to the access port on the phone (o ptional). See “Co nnec ting ...

  • Cisco Systems IP phone 7960 - page 53

    2-19 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Installing the Cisco SIP IP Phone Befo re You Begin • Mounting the Cisco SIP IP phone on the wall requires some tools and equipmen t tha t a re n ot pr ovided as sta ndard e quipme nt. Follo w ing are th e tools an d p arts r eq ...

  • Cisco Systems IP phone 7960 - page 54

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Verifying St art up 2-20 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e 2-2 A djus ting the F oots tand Verifying Startup After the ph one has power connected to it, the phone begins its startup pro cess by cycling through these steps: 1. These buttons flash on and off in se q ...

  • Cisco Systems IP phone 7960 - page 55

    2-21 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Using the Cisco SIP IP Phon e Menu Inter face 3. These messag es display as phone starts up: – Configuring VLA N—The ph one is c onfiguring the E therne t co nne ction. – Configuring IP—The phone is contacting the DHCP ser ...

  • Cisco Systems IP phone 7960 - page 56

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Reading t he Ci sc o SIP IP Phone Ico ns 2-22 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 – If entering letters, use the num bers on the dial pad associated with a particular let ter . F or e xample, the 2 ke y has the le tter s A, B, a nd C. F o r a lo wer case “ a”, pr ess ...

  • Cisco Systems IP phone 7960 - page 57

    2-23 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Reading the Cisco SIP IP Ph one Icons The line is c onfigured for E.164 n umber d ialing and ready for you to place the cal l. When a line is conf igured for E.164 number di alin g , you ca n en te r o nl y n umb er s wh en p l ac ...

  • Cisco Systems IP phone 7960 - page 58

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Customizing the Cis co SI P IP Phon e Ring Types 2-24 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Customizing the Cisco SIP IP Phone Ring Types The Cisco SIP IP phon e ships with two ring types: Chirp1 and Ch irp2. By default, your ring type options w ill be those two choice s. How ...

  • Cisco Systems IP phone 7960 - page 59

    2-25 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 2 Getting Started with Your Cisco SIP IP Pho ne Creating Dial Plans Note W e re commend that you define the dial_templa te parame ter in the default conf iguration file for maintenance and control purposes. Specify the dial_template para meter in a phone-specific configuration ...

  • Cisco Systems IP phone 7960 - page 60

    Chapter 2 Getting Started with Your Cisco SIP IP Phone Creati n g Dial Pla ns 2-26 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • User =” type ” is the either IP or Pho ne. Enter Use r=phone or User=I P to have the tag automatically added to the dialed number . • Re write=” alts t rng ” is the alte rnate str ing to be dia le ...

  • Cisco Systems IP phone 7960 - page 61

    C HAPTER 3-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 3 Managing Cisco SIP IP Phones This chapter provides information on the followi ng: • Ent ering Con figu ration Mo de, pa ge 3-1 • Modifyin g the Phone’ s N etwork Settings, page 3-2 • Modifying the Phon e’ s SIP Settings , page 3- 5 • Setting the Date, T ime, and D ...

  • Cisco Systems IP phone 7960 - page 62

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify ing th e Phon e’s Netwo rk Setting s 3-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Unlocking Configuration Mode T o unlock the Cisco SIP IP phone , pr es s ** # . Note Y ou have acti vated the configuration mode for your pho ne . There is no indication an action has taken place. If t ...

  • Cisco Systems IP phone 7960 - page 63

    3-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s Ne twork Settings Befo re You Begin When configuring network se ttings, reme mber the following: • Unlock con figuration mo de a s desc ribed in th e “U nlock ing C onfiguration Mode” section on page 3- 2. By default, ...

  • Cisco Systems IP phone 7960 - page 64

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify ing th e Phon e’s Netwo rk Setting s 3-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • TFTP Server—IP a dd ress o f the TFTP server fr om which th e pho ne do wnlo ads its con figurati o n files and fi rmware images. T o edit this field, DHCP must be disabled. • Default Rout ers ...

  • Cisco Systems IP phone 7960 - page 65

    3-5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings network befo re the phone a ttempts to acquire a nother IP addre ss from the DHCP ser ver . When moving the phon e to a new network segment, you sho uld fi rst release the DHCP address. • Alterna te TFTP—Wh ...

  • Cisco Systems IP phone 7960 - page 66

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 T abl e 3-1 lists each of the SIP parame ters that you can conf igure. In the Configuration column, the name of a para meter as you would spe cify it in a configura tion fil e is listed. In the menu column ( ...

  • Cisco Systems IP phone 7960 - page 67

    3-7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings dtmf_ outofba nd Out of Ba nd D TMF N A N A imag e_ version NA NA NA line x _authname (line1 to line6) Au th en ti c a ti o n N a me N A NA line x _displayname (line1 to line6) Display Name N A N A line x _name ...

  • Cisco Systems IP phone 7960 - page 68

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Modifying S IP Paramete rs via a T FTP Server If you have set up yo ur phones to retriev e their SIP para meters via a TFTP server as desc ribed in the “Co nfiguring SIP Parame ter s v ia a TFT P Se rver? ...

  • Cisco Systems IP phone 7960 - page 69

    3-9 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings Befo re You Begin • Ensure t hat you ha ve do wnloaded th e SIPDef ault.cnf f ile from CCO to the root direc tory of y our TF TP se rver . • Revie w the guidelines a nd restrictions docu mented in the “ C ...

  • Cisco Systems IP phone 7960 - page 70

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-10 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • dtmf_inban d—(Option al) Whether to detec t and gene rate in-band signaling format. V a lid va lue s are 1 (ge nerate D TMF digits in-band) and 0 (do not generate DTMF d igits in- band). The default i ...

  • Cisco Systems IP phone 7960 - page 71

    3-11 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings • sip_retx—(O ptional) Maximum number of times a SIP message othe r than an INVITE request wil l be retransmitted. The v alid v alue is any posit iv e integer . The default is 10. • sip_in vite_re tx—( ...

  • Cisco Systems IP phone 7960 - page 72

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-12 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 – dst_off set—(Option al) Of fset from the phone’ s time when DST is in effect. – dst_start_month— (Optiona l) Mo nth in w hich DST s tarts. – dst_ start_da y—(Optio nal) Day of th e month on ...

  • Cisco Systems IP phone 7960 - page 73

    3-13 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings – 2—The Do No t Disturb fe atur e is off perman en tly and ca nno t be turn ed on and off locally via the phone’ s user inter face. If specifying this v alue, specify this parameter in the phone-specific ...

  • Cisco Systems IP phone 7960 - page 74

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-14 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 – 2—The Ano nymous Call Blocking featu re is disabled perm anen tly and cannot b e turn ed on a nd off locally v ia th e pho ne ’ s us er inte rface . If specifying this value, specif y this parameter ...

  • Cisco Systems IP phone 7960 - page 75

    3-15 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings Step 2 Sav e the file with the same file name, SIPDefa ult.cnf, to the roo t directory of your TFTP se rver . The fo llowing is an exam ple of a SI P d efaul t co nfiguration file: ; sip default configuration ...

  • Cisco Systems IP phone 7960 - page 76

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-16 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Proced ure Step 1 Using an ASCII edit or , create a ph o ne-specif ic config uratio n f ile for each p hone that you plan to install. In the phone-specific confi guration f ile, define va lues for the follo ...

  • Cisco Systems IP phone 7960 - page 77

    3-17 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings • linex_displayname—(Op tional) I dentification as it should appe ar for c aller iden tifi cation p urposes. For ex ampl e, instead o f jdoe@c ompan y .com displaying on ph ones that have caller ID , you c ...

  • Cisco Systems IP phone 7960 - page 78

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-18 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step 2 Sav e the file to y our TFTP ser ver (i n the roo t dir ect ory o r a subd irec tor y containing a ll the phone-speci fic configuration f iles). Name the f ile “SIP XXXXYYYYZZZZ . cnf” where XX X ...

  • Cisco Systems IP phone 7960 - page 79

    3-19 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings • When co nfiguring th e Prefe rred Code c an d Ou t of Band D TMF pa rame ters, press the Change soft key until the option you desire is displayed and then press the Sa ve sof t ke y . • After m aking you ...

  • Cisco Systems IP phone 7960 - page 80

    Chapt er 3 Managing Cisco SI P IP Pho nes Modify in g the Phon e’s SIP Settings 3-20 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Authentication Pa ssword p arameter when registrati on is enabled, the def ault logical password is used. The de fault logical password is SIP m acaddress where m acaddress is the MAC address of the ph one ...

  • Cisco Systems IP phone 7960 - page 81

    3-21 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Modifying the Phone’s SIP Settings • Register with Proxy—(Optiona l) Whether the pho ne must register with a proxy server during initialization. V alid v alues are Y es and No. Select the No soft key to disable registr ation during initiali ...

  • Cisco Systems IP phone 7960 - page 82

    Chapt er 3 Managing Cisco SI P IP Pho nes Setting the Date, Time, and Daylight Savings Tim e 3-22 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Setting the Date, Time, and Daylight Savings Time The cu rr en t da te an d tim e is suppor ted on the C i sco SIP IP pho ne via SNT P a nd is displayed on the p hone’ s LCD. In a ddition to su ...

  • Cisco Systems IP phone 7960 - page 83

    3-23 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Setting the Date, Ti m e, and Daylight Savings T ime T able 3-2 A ctions Based on sn t p_m ode When the s ntp_server P aramet er is Set to a N ull V alue sntp_s erver =0.0.0 .0 sntp_ mode= unica st sn tp_mod e= multicast sn tp_mod e= anycas t snt ...

  • Cisco Systems IP phone 7960 - page 84

    Chapt er 3 Managing Cisco SI P IP Pho nes Setting the Date, Time, and Daylight Savings Tim e 3-24 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 T able 3-3 lists the actions that take place when a valid IP address is specifi ed in the sntp_server para meter . T able 3-3 A ctions Based on sn t p_m ode When the s ntp_server P aramet er is S ...

  • Cisco Systems IP phone 7960 - page 85

    3-25 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Setting the Date, Ti m e, and Daylight Savings T ime Proced ure Step 1 Using an ASCII editor , open the SIPDef ault.cnf file a nd define or modify values for th e foll owing S NTP -s peci fic S IP pa rame ter s a s n ec e ssary : • sntp_mode— ...

  • Cisco Systems IP phone 7960 - page 86

    Chapt er 3 Managing Cisco SI P IP Pho nes Setting the Date, Time, and Daylight Savings Tim e 3-26 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • dst_start_time—T ime of day on which DST begins. V alid values are hour/minute (0 2/00) or h our (14:30 ). • dst_stop_time—Time of day on whic h DST ends . V alid values are hour/minute ...

  • Cisco Systems IP phone 7960 - page 87

    3-27 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Setting the Date, Ti m e, and Daylight Savings T ime • dst_stop_day_ of_wee k—Da y of the week on which DST ends. V alid v alues are Sund ay or Sun, Mond ay or Mon , Tu esday or T ue, W ednesday or W ed, Thu rsday or Thu, Friday or Fri, Satur ...

  • Cisco Systems IP phone 7960 - page 88

    Chapt er 3 Managing Cisco SI P IP Pho nes Erasing the Loc al ly-Defi ne d Settings 3-28 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 The follo wing is an example of the conf iguration for a rela tiv e DST conf iguration: ; sip default configuration file (additional configuration text omitted) time_zone : PST dst_offset : 01/00 dst_start ...

  • Cisco Systems IP phone 7960 - page 89

    3-29 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Erasing th e Locally-Defi ned Settings Proced ure Step 1 Press the settings key . The Settings me nu is displayed. Step 2 Highlight Netw ork Conf iguration . Step 3 Press the Select soft key . The Network Con figuration settings are displayed. St ...

  • Cisco Systems IP phone 7960 - page 90

    Chapt er 3 Managing Cisco SI P IP Pho nes Access ing Statu s Informat io n 3-30 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step 4 Highlight t he parameter for which you wish to erase the setting. Step 5 Press the Edit soft key . Step 6 Press the << soft k ey to delete the current v alue. Step 7 Press the V alidate soft key to sa ...

  • Cisco Systems IP phone 7960 - page 91

    3-31 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Acce s si ng Sta tu s Inf o rm ati o n Viewing Sta tus Mess ages T o view status messages that you can use to diagnose network pro blems, complete the follow in g steps: Step 1 Press the Settings key . The Settings menu is displayed. Step 2 Highl ...

  • Cisco Systems IP phone 7960 - page 92

    Chapt er 3 Managing Cisco SI P IP Pho nes Access ing Statu s Informat io n 3-32 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 • Phone Sta te Message—TCP m essages indicat ing the state of the phone . Possi ble mes sag es ar e: – Phone In itialize d—TC P conn ection ha s not g one down since th e pho ne was powered on. – Phone C ...

  • Cisco Systems IP phone 7960 - page 93

    3-33 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Upgrading the Cisco SIP IP Ph one Firmware Viewing the Firmw are Version T o vie w network statistics, complete the follo wing steps: Step 1 Press the s ettin gs key . Th e Settings menu is displayed. Step 2 Highlight Status . Step 3 Press the Se ...

  • Cisco Systems IP phone 7960 - page 94

    Chapt er 3 Managing Cisco SI P IP Pho nes Upgradi ng t he Cisco SIP I P Phon e Firmware 3-34 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Proced ure Step 1 Copy the binary file P0S3 xxyy . bin (whe re xx is the version number and yy is t he subversion number ) from CCO to the r oot dire c tory of the TF TP se rver . Step 2 Using a text ...

  • Cisco Systems IP phone 7960 - page 95

    3-35 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Chapter 3 Managing Cis co SIP IP Phones Performi ng an Image Upgrade and Rem ote Reboot Performing an Image Upgrade and Remote Reboot W ith V er sion 2.0 o f the Cisco SI P I P Pho ne 79 60, you ca n perf orm a n image upgrade and remote reboo t using Notify mess ages and the sync hinf ...

  • Cisco Systems IP phone 7960 - page 96

    Chapt er 3 Managing Cisco SI P IP Pho nes Performin g an Image Up grade and Remot e Reb oot 3-36 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 The fo llowing i s a n exam ple of a No ti f y mes sag e: NOTIFY sip: lineX_name @ ipaddress :5060 SIP/2.0 Via: SIP/2.0/UDP ipaddress :5060;branch=1 Via: SIP/2.0/UDP ipaddress From: <sip:webadi ...

  • Cisco Systems IP phone 7960 - page 97

    A-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 APPENDIX A SIP Compliance with RFC-2543 Information This section describes ho w th e Cisco SIP IP ph one complies with the IETF def init ion of SIP as describe d in RFC 2543 . This section contains compliance information on the following: • SIP Functions, page A-2 • SIP Methods, pag ...

  • Cisco Systems IP phone 7960 - page 98

    Appendix A SIP Complianc e with RFC-2543 Information SIP Functions A-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 SIP Functions SIP Methods Fiv e of the six method s used by the SIP gate way are supp orted: Function Sup ported? User Agen t Client (U A C) Y es User Agent Serv er (U AS) Y es Proxy Server Third-pa rty only Redirect Ser v ...

  • Cisco Systems IP phone 7960 - page 99

    A-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix A SIP C ompliance with RFC-2543 Information SIP R esponses SIP Responses Release 1.0 of the Cisco SIP IP phone supports the follow in g SIP responses: • 1xx Respo nse— Infor mation R esponse s, page A-4 • 2xx Response—Successful Respo nses, page A-4 • 3xx Response—R ...

  • Cisco Systems IP phone 7960 - page 100

    Appendix A SIP Complianc e with RFC-2543 Information SIP Responses A-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 1xx Respon se—Information R esponse s 2xx Resp onse— Success ful Resp onses 1xx Resp onse Supported ? Comments 100 Trying Y e s The Cisco SIP IP phone generate s this response f or an incom ing INV ITE. Up on receiving ...

  • Cisco Systems IP phone 7960 - page 101

    A-5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix A SIP C ompliance with RFC-2543 Information SIP R esponses 3xx Respon se—Redi rection Resp onses 4xx Respo nse —Re ques t Fa ilure R e spon se s 3xx Resp onse Supported Comment s 300 Multiple Choices Ye s None 301 Moved Permanently Ye s 302 Moved T emporarily Y es The Cisco ...

  • Cisco Systems IP phone 7960 - page 102

    Appendix A SIP Complianc e with RFC-2543 Information SIP Responses A-6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 401 Unauthorized Y es This response is only receiv ed in this release . If a 40 1 U nauth oriz ed r esp onse is received during registra tion, the p hone accepts the response and sends a new request th at contains the user ...

  • Cisco Systems IP phone 7960 - page 103

    A-7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix A SIP C ompliance with RFC-2543 Information SIP R esponses 407 Proxy Au th enti c ati o n Requ ired See comments This response is o nly receive d in this release . The 407 Prox y Authentication R equired response indicates tha t th e phone m ust f irst authenticate itself with ...

  • Cisco Systems IP phone 7960 - page 104

    Appendix A SIP Complianc e with RFC-2543 Information SIP Responses A-8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 411 Leng th Requ ired See comments This response is only receiv ed by the phone in this rele ase. This response indica tes that the user refuses to accept the request without a defined conte nt length. I f re ceived the ph ...

  • Cisco Systems IP phone 7960 - page 105

    A-9 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix A SIP C ompliance with RFC-2543 Information SIP R esponses 480 T emporar ily Unav ailable See comments This response is only receiv ed by the phone in this releas e. The user is notif ie d if this response is received. If this response i s recei ved, the user is notifi ed that ...

  • Cisco Systems IP phone 7960 - page 106

    Appendix A SIP Complianc e with RFC-2543 Information SIP Heade r Fields A-10 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 5xx Respon se—Server Fa ilure Respon ses 6xx Respon se—Global Re sponses SIP Header Fields 5xx Respon se Comments 500 In tern al Ser ver Error F or an incoming response, the Cisco SIP IP phone sends a new request ...

  • Cisco Systems IP phone 7960 - page 107

    A-11 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix A SIP C ompliance with RFC-2543 Information SIP Header Fields Authorization Y es Call-ID Y es Cont act Y es Cont ent-Enc oding Y es Cont ent-Length Y es Content-T ype Y e s Cseq Y es Date Y es Encryption No Expire s Y es From Y es Hide No Max-F orw ards Y es Organization No Pr ...

  • Cisco Systems IP phone 7960 - page 108

    Appendix A SIP Complianc e with RFC-2543 Information SIP Session D es cription Protocol (SD P) Usage A-12 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 SIP Session Description Protocol (SDP) Usage Server No Subject No T imestamp Y es To Y e s Unsupported Y es User -Agent Y es Vi a Y e s Wa r n i n g Ye s WWW -Authentic ate Y es SDP Head ...

  • Cisco Systems IP phone 7960 - page 109

    B-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 APPENDIX B SIP Ca ll Flows SIP uses six request methods : • INVITE—Indica tes a user or service is being in vited to partic ip ate in a call session. • A CK—Confirms that the client has receiv ed a final response to an INVITE request. • BYE—T e rmin ates a call a nd can be s ...

  • Cisco Systems IP phone 7960 - page 110

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Call Flow Scenarios for Successful Calls This section descr ibes call flows f or the follo wing scenarios, which illustrate successful cal ls: • Gate way- to Cis co SIP I P Phone—S u ccessf ul Call S etup and Disco ...

  • Cisco Systems IP phone 7960 - page 111

    B-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Gateway-to Cisco SI P IP Phone—S uccessfu l Call Setu p and Disconnect Figure B-1 illustrates a succ essfu l gate way-to-Cisco SIP IP phone call setup and disconne ct. In this scen ario, the two en d user s are Use ...

  • Cisco Systems IP phone 7960 - page 112

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-1 Gat eway -t o-Cisco SIP I P Phone—S uccessful Set up and Disconnec t IP 3. Call Proceeding 6. Aler ting 8. Connect 12. Disconnect 1. Setup PBX A SIP IP Phone User B User A GW1 IP Network 4. 100 T rying 11 ...

  • Cisco Systems IP phone 7960 - page 113

    B-5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 Setup—PBX A to Gatew ay 1 Call Setup is initiated between PBX A and Gatewa y 1. The Call Setup includes the standard transactions that take place as User A attem p ts to call User B. 2 INVI ...

  • Cisco Systems IP phone 7960 - page 114

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 6 Alerting—Gate way 1 to PBX A Gate way 1 sends an Alert message to User A. The Alert messag e indicates that Gateway 1 has recei ved a 180 Ringing resp onse from th e Cisco SI P IP ph one. Us er A hears the ringback ...

  • Cisco Systems IP phone 7960 - page 115

    B-7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Gateway-to -Cisco SI P IP Phone—Suc cessful Call Se tup and Call Hold Figure B-2 illustrates a succ essfu l gate way-to-Cisco SIP IP phone call setup and call hold. In this scenario, the two end users ar e User A an ...

  • Cisco Systems IP phone 7960 - page 116

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-2 Gat eway -t o-Cisco SIP I P Phone Call—Su ccessful Call Set up and Call Hold IP SIP IP Phone User B 3. Call Proceeding 6. Aler ting 8. Connect 10. Connect ACK 1. Setup PBX A User A GW1 IP Network 4. 100 T ...

  • Cisco Systems IP phone 7960 - page 117

    B-9 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 Setup—PBX A to Gatew ay 1 Call Setup is initiated between PBX A and Gatewa y 1. The Call Setup includes the standard transactions that take place as User A attem p ts to call User B. 2 INVI ...

  • Cisco Systems IP phone 7960 - page 118

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-10 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 6 Alerting—Gate way 1 to PBX A Gate way 1 sends an Alert message to User A. The Alert messag e indicates that Gateway 1 has recei ved a 180 Ringing resp onse from th e Cisco SI P IP ph one. Us er A hears the ringbac ...

  • Cisco Systems IP phone 7960 - page 119

    B-11 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Gateway to-Cisco SIP IP Phone—Successful Call Setup and Call Transfer Figure B-3 illustrates a successful gateway-to-Cisco SIP IP phone PC call setup and call transfe r without consultation. In this sce n ario, the ...

  • Cisco Systems IP phone 7960 - page 120

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-12 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-3 Gat eway -t o-Cisco SIP I P Phone Call—Su ccessful Call Set up and Call T r ansf er IP 3. Call Proceeding 6. Aler ting 8. Connect 9. Connect ACK 14. Setup 25. Connect ACK 16. Call Proceeding 17. Aler tin ...

  • Cisco Systems IP phone 7960 - page 121

    B-13 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 Setup—PBX A to Gatew ay 1 Call Setup is initiated between PBX A and Gatewa y 1. The Call Setup includes the standard transactions that take place as User A attem p ts to call User B. 2 INV ...

  • Cisco Systems IP phone 7960 - page 122

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-14 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 6 Alerting—Gate way 1 to PBX A Gate way 1 sends an Alert message to User A. The Alert messag e indicates that Gateway 1 has recei ved a 180 Ringing resp onse from th e Cisco SI P IP ph one. Us er A hears the ringbac ...

  • Cisco Systems IP phone 7960 - page 123

    B-15 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 13 INVI TE — Gat eway 1 to Gate way 2 Gate way 1 sends a SIP INVITE request to Gate way 2. In the IN VITE r equest, a uniq ue Call- ID is genera ted and the Requested-By fie ld indicates that Use r B requested the ...

  • Cisco Systems IP phone 7960 - page 124

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-16 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone Simple Call Hold Figure B-4 illustrates a succes sful call betwee n Cisco SIP IP phones in whic h one of the partic ipants places t he other on hold and then ret urns to the ca ...

  • Cisco Systems IP phone 7960 - page 125

    B-17 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Figur e B-4 Cisco SIP IP Phone-to-Cis co SIP IP Ph one Simple Call Hold IP IP 2. 180 RINGING 3. 200 OK 2-wa y RTP channel 4. ACK A is taken off hold. The RTP channel betw een A and B is reestablished. A is on hold. T ...

  • Cisco Systems IP phone 7960 - page 126

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-18 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to partic ...

  • Cisco Systems IP phone 7960 - page 127

    B-19 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 3 200 OK—Cisc o SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a SIP 200 OK response to Cisco SIP IP phone A. The 200 OK response notifies Cisco SIP IP phone A that the conn ection has been made ...

  • Cisco Systems IP phone 7960 - page 128

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-20 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone Call Hold with Consultation Figure B-5 illustrates a succes sful call betwee n Cisco SIP IP phones in whic h one of the partic ipants places the othe r on hold, calls a third p ...

  • Cisco Systems IP phone 7960 - page 129

    B-21 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Figur e B-5 Cisco SIP IP Phone-to-Cis co SIP IP Ph one Call Hold with Co nsultation IP IP IP 2. 180 Ringing 3. 200 OK 2-wa y RTP channel A is put on hold. The RTP channel between A and B is torn down. 4. ACK 2-wa y R ...

  • Cisco Systems IP phone 7960 - page 130

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-22 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to partic ...

  • Cisco Systems IP phone 7960 - page 131

    B-23 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 3 200 OK—Cisc o SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a SIP 200 OK response to Cisco SIP IP phone A. The 200 OK response notifies Cisco SIP IP phone A that the conn ection has been made ...

  • Cisco Systems IP phone 7960 - page 132

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-24 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 8 INVITE—Cisco SIP IP phone B to Cisco SIP IP phon e C Cisco SIP IP phone B send s a SIP INVITE request to Cisco SIP IP phone C. Th e INVITE reque st is an in vita tion to User C to particip ate in a call session. 9 ...

  • Cisco Systems IP phone 7960 - page 133

    B-25 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Cisco SIP IP Phone-to-Cisco SIP IP Phone Call Waiting Figure B-6 illustrates a successful call between Cisco SIP IP phon es in which two partie s are in a call, one o f the participants recei ves a call from a third ...

  • Cisco Systems IP phone 7960 - page 134

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-26 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-6 Cisco SIP IP Phone-to-Cis co SIP IP Ph one Call W a iting IP IP IP 2. 180 Ringing 3. 200 OK 2-wa y RTP channel A is put on hold. The RTP channel betw een A and B is tor n down. B has disconnected from A, b ...

  • Cisco Systems IP phone 7960 - page 135

    B-27 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to parti ...

  • Cisco Systems IP phone 7960 - page 136

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-28 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 3 200 OK—Cisc o SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a SIP 200 OK response to Cisco SIP IP phone A. The 200 OK response notifies Cisco SIP IP phone A that the conn ection has been made ...

  • Cisco Systems IP phone 7960 - page 137

    B-29 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 9 A CK —Cisco SI P IP ph one B to Cisco SIP IP phone A Cisco SIP IP phone B sends a SI P AC K to Cisco SIP IP phone A. The ACK confirms that Cisco SIP IP phone B has rece ived the 200 OK respo nse from Cisco SIP IP ...

  • Cisco Systems IP phone 7960 - page 138

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-30 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 15 INVITE—Cisco SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a mid-call INVITE to Cisco SIP IP p hone A with the sa me call I D as the previous INVITE ( sent to Cisco SI P I P ph one A) and new ...

  • Cisco Systems IP phone 7960 - page 139

    B-31 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Cisco SI P IP Phone-to -Cisco SIP IP Phone Ca ll Transfer with out Consultation Figure B-7 illustrates a successful call between Cisco SIP IP phon es in which two parties are in a call and then one o f the par ticipa ...

  • Cisco Systems IP phone 7960 - page 140

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-32 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-7 Cisco SIP IP Phone-to-Cis co SIP IP Ph one Call T ransf er without Consultation IP IP IP 2. 180 Ringing 3. 200 OK 2-wa y RTP channel A and B are disconnected. 4. ACK 5. BYE (Also: C) 6. 200 OK 1. INVITE B ...

  • Cisco Systems IP phone 7960 - page 141

    B-33 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to parti ...

  • Cisco Systems IP phone 7960 - page 142

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-34 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 3 200 OK—Cisc o SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a SIP 200 OK response to Cisco SIP IP phone A. The 200 OK response notifies Cisco SIP IP phone A that the conn ection has been made ...

  • Cisco Systems IP phone 7960 - page 143

    B-35 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Cisco SI P IP Phone-to -Cisco SIP IP Phone Ca ll Transfer with Consultation Figure B-8 illustrates a successful call between Cisco SIP IP phon es in which two parties are in a call, one of the participants contacts a ...

  • Cisco Systems IP phone 7960 - page 144

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-36 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-8 Cisco SIP IP Phone-to-Cis co SIP IP Ph one Call T ransf er with Consultation IP IP IP 2. 180 Ringing 3. 200 OK 2-wa y RTP channel A is put on hold. The RTP channel between A and B is torn down. A and B are ...

  • Cisco Systems IP phone 7960 - page 145

    B-37 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to parti ...

  • Cisco Systems IP phone 7960 - page 146

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-38 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 3 200 OK—Cisc o SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a SIP 200 OK response to Cisco SIP IP phone A. The 200 OK response notifies Cisco SIP IP phone A that the conn ection has been made ...

  • Cisco Systems IP phone 7960 - page 147

    B-39 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 9 180 Ring ing—Cisc o SIP I P phone C to Cisco SIP IP p hone B Cisco SIP I P phone C sends a SI P 180 R inging respon se to Cisco SIP IP phone B. 10 200 OK—Cisc o SIP IP phone C to Cisco SIP IP phon e B Cisco SIP ...

  • Cisco Systems IP phone 7960 - page 148

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-40 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 14 BYE—Cisco SIP I P phone B to Cisco SIP IP phone A The call co nti nues and then User B han gs up . Cisco SI P IP phone B se nds a SIP BYE requ est to Cisco SIP IP phone A. The SIP BYE re quest includ es the Also ...

  • Cisco Systems IP phone 7960 - page 149

    B-41 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Cisco SIP IP Phone-to-Cisco SIP IP Phone Network Call Forwarding (Unconditional) Figure B-9 illustrates succ essful call forwarding be tween Cisco SIP IP p hones in whic h User B has requ ested unco ndit ional call f ...

  • Cisco Systems IP phone 7960 - page 150

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-42 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Figur e B-9 Cisco SIP IP Phone-to-Cis co SIP IP Ph one Networ k Call Forw arding (U nconditional) IP IP 7. 200 OK 4. INVITE C 6. 200 OK 9. ACK 5. 180 Ringing 1. INVITE B 8. ACK 3. 302 Mov ed T emporarily 2. INVITE B I ...

  • Cisco Systems IP phone 7960 - page 151

    B-43 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Step Action Description 1 INVI TE—Cisco SIP I P phone A to SIP pr oxy server Cisco SIP IP phone A send s a SIP INVITE r equest to the SIP prox y s erver . The INVIT E r equest is a n invitation to User B to partici ...

  • Cisco Systems IP phone 7960 - page 152

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-44 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone Network Call Forwar ding (Bu sy) Figure B-10 illustrates successful call forwardi ng between Cisco SIP IP p hones in which User B has requested call forw arding from the networ ...

  • Cisco Systems IP phone 7960 - page 153

    B-45 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Figur e B-1 0 Cisc o SIP IP Phone-t o-Cisco SIP IP Phone N etwor k Call F orwar ding (Busy) IP IP 10. 200 OK 4. INVITE B 8. 180 Ringing 9. 200 OK 12. ACK 7. INVITE C 5. 486 Busy Here 6. ACK 1. INVITE B 11. ACK 3. 300 ...

  • Cisco Systems IP phone 7960 - page 154

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-46 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step Action Description 1 INVI TE—Cisco SIP I P phone A to SIP pr oxy server Cisco SIP IP phone A send s a SIP INVITE r equest to the SIP prox y s erver . The INVIT E r equest is a n invitation to User B to particip ...

  • Cisco Systems IP phone 7960 - page 155

    B-47 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 5 486 Busy Here—Cisco SIP I P phone B to SI P pr oxy se rver Cisco SIP IP p hone B se nds a 486 Busy here message to the SIP proxy se rver . The me ssage indicates that Cisc o SIP IP phone B is in u se and the user ...

  • Cisco Systems IP phone 7960 - page 156

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-48 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone Network Call Forwa rding (No An swer) Figure B-11 illustrates successful call forwardi ng between Cisco SIP IP p hones in which User B has requested call forwarding fr om the n ...

  • Cisco Systems IP phone 7960 - page 157

    B-49 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Figur e B-1 1 Cisco SIP IP Phone- to-Cisco SIP IP Phone Netw ork Ca ll Forw arding (No Answer) IP IP 12. 200 OK 6. 180 Ringing 4. INVITE B 8. 200 OK 11. 200 OK 10. 180 Ringing 14. ACK 9. INVITE C 7. CANCEL 5. 180 Rin ...

  • Cisco Systems IP phone 7960 - page 158

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-50 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step Action Description 1 INVI TE—Cisco SIP I P phone A to SIP pr oxy server Cisco SIP IP phone A send s a SIP INVITE r equest to the SIP prox y s erver . The INVIT E r equest is a n invitation to User B to particip ...

  • Cisco Systems IP phone 7960 - page 159

    B-51 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 6 180 Ringing— SIP proxy server to Cisco SIP IP phon e A SIP prox y s erver send s a SI P 18 0 Ri nging re spo nse to Cisco SIP IP phone A. The tim eou t expires be fore the ph one is answ er ed. 7 CANCE L (R ing T ...

  • Cisco Systems IP phone 7960 - page 160

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-52 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to Cisco SIP IP Phone 3-Way Calling Figure B-1 1 illustrates succe ssfu l 3-way ca lling between Cisc o SIP IP phone s in which User B mi xes two RT P chan nels and there fore establishe s a confere ...

  • Cisco Systems IP phone 7960 - page 161

    B-53 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls Figur e B-12 Cisco SIP IP Phone-to Ci sco SIP IP Phone 3-W ay Calling 4. ACK 9. 180 Ringing 10. 200 OK 11. ACK 8. INVITE C (Call-ID=2) 2-wa y RTP channel 1 between Users A and B estab lished 5. INVITE (Call-ID=1, c=I ...

  • Cisco Systems IP phone 7960 - page 162

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-54 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to partic ...

  • Cisco Systems IP phone 7960 - page 163

    B-55 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 3 200 OK—Cisc o SIP IP phone B to Cisco SIP IP phon e A Cisco SIP IP phone B sends a SIP 200 OK response to Cisco SIP IP phone A. The 200 OK response notifies Cisco SIP IP phone A that the conn ection has been made ...

  • Cisco Systems IP phone 7960 - page 164

    Appendix B SIP Call Flows Call Flow Scenario s f or Suc cessful Call s B-56 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 8 INVITE—Cisco SIP IP phone B to Cisco SIP I P p hon e C C isco SIP IP p hone B s ends a SIP INVITE request to Cisc o SIP IP p hone C. Th e INV ITE re quest is a n invitati on to User B to particip ate in a call ses ...

  • Cisco Systems IP phone 7960 - page 165

    B-57 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow S cenarios for Successful Cal ls 10 200 OK —Cisc o SIP IP pho ne C to Cisco SIP I P p hon e B C isco SIP IP phone C sends a SIP 200 OK response to Cisco SIP IP phone B. The 200 OK response notifies Cisco SIP IP p hone B that the co nne ction h as ...

  • Cisco Systems IP phone 7960 - page 166

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-58 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Call Flow Scenarios for Failed Calls This section descr ibes call flows f or the follo wing scenarios, which illustrate uns uccess ful call s: • Gate way-to-Cisco SIP IP Phone—Called User is Bu sy , page B-58 • Gate ...

  • Cisco Systems IP phone 7960 - page 167

    B-59 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls Step Action Description 1 Setup—PBX A to Gatew ay 1 Call Setup is initiated between PBX A and Gatewa y 1. The Call Setup includes the standard transactions that take place as User A attem p ts to call User B. 2 INVI TE ...

  • Cisco Systems IP phone 7960 - page 168

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-60 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Gateway-to-Cisco SIP IP Phone—Called User Does Not Answer Figure B-14 illustrates t he ca ll flo w in which User A initi ates a call to User B b ut User B does not an swer . Figur e B-14 Gat ewa y-t o-Cisco SIP IP Phone ...

  • Cisco Systems IP phone 7960 - page 169

    B-61 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls Step Action Description 1 Setup—PBX A to Gatew ay 1 Call Setup is initiated between PBX A and Gatewa y 1. The Call Setup includes the standard transactions that take place as User A attem p ts to call User B. 2 INVI TE ...

  • Cisco Systems IP phone 7960 - page 170

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-62 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 7 CANCE L (R ing Timeout)— G ateway 1 to C is co SIP IP ph one Beca use Gateway 1 did not return a n appropr iate response within the time allocated in the INVITE re q uest, Gate way 1 sends a SI P CANCEL re quest to Ga ...

  • Cisco Systems IP phone 7960 - page 171

    B-63 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls Gateway-to-Cisco SIP IP Phone—Client, Server, or Global Error Figure B-15 illustrates an unsuccessful call in which User A initiates a call to User B a nd re ce ives a c las s 4 xx , 5 xx , or 6 xx response. Figur e B-1 ...

  • Cisco Systems IP phone 7960 - page 172

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-64 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Step Action Description 1 Setup—PBX A to Gatew ay 1 Call Setup is initiated between PBX A and Gatewa y 1. The Call Setup includes the standard transactions that take place as User A attem p ts to call User B. 2 INVI TE ...

  • Cisco Systems IP phone 7960 - page 173

    B-65 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls 5 4xx/5xx/6x x Failure—Cisco SIP IP p hon e to G a teway 1 The Cisco SIP IP phone sends a class 4 xx , 5 xx , or class 6 xx failure r esponse to Ga teway 1. De pend ing on wh ich cl ass the failure response is, the call ...

  • Cisco Systems IP phone 7960 - page 174

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-66 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone—Called User is Busy Figure B-16 illustrates an unsuccessful call in which User A initiates a call to User B b ut User B is on the phone and is unable or unwilling to take another ...

  • Cisco Systems IP phone 7960 - page 175

    B-67 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to particip a ...

  • Cisco Systems IP phone 7960 - page 176

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-68 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone—Called User Does Not Answer Figure B-17 illustrates an unsuccessful call in which User A initiates a call to User B bu t User B does not answer . Figur e B-1 7 Cisco SIP IP Phone ...

  • Cisco Systems IP phone 7960 - page 177

    B-69 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls Step Action Description 1 INVI TE—Cisco SIP I P phone A to Cisco SIP IP phon e B Cisco SIP IP phone A sends a SIP IN VITE requ est to Cisco SIP IP phone B. Th e INVITE reque st is an in vita tion to User B to particip a ...

  • Cisco Systems IP phone 7960 - page 178

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-70 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Cisco SIP IP Phone-to-Cisco SIP IP Phone—Authentication Er ror Figure B-18 illustrates an unsuccessful call in which User A initiates a call to User B b ut is prompted for authentication credentia ls by th e proxy serv ...

  • Cisco Systems IP phone 7960 - page 179

    B-71 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix B SIP C all Flows Call Flow Scenarios for Fa iled Calls Step Action Description 1 INVI TE—Cisco SIP I P phone A to SIP pr oxy server Cisco SIP IP phone A send s a SIP INVITE r equest to the SIP prox y s erver . The INVIT E r equest is a n invitation to User B to particip ate ...

  • Cisco Systems IP phone 7960 - page 180

    Appendix B SIP Call Flows Call Flow Scenario s f or F ailed Call s B-72 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 ...

  • Cisco Systems IP phone 7960 - page 181

    C-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 APPENDIX C Technical Specifications This a ppend ix p rovides physical an d o pera ting e nvironment and ca ble te ch nical specifications for the Cisco SI P IP phone s. T his app endix a lso provides the connectio n specifications of your Cisco SIP IP phone. Physical and Operating Envi ...

  • Cisco Systems IP phone 7960 - page 182

    Append ix C Technic al Specifi cations Physic al and O pera ting E nvi ronmen t Spe cificat ions C-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Power 48 VD C, su pplied lo ca lly at the desktop using an optio nal A C-to- DC poser su pply Regulatory CE Marking IC CS- 03 FCC Part 15 Class A FCC (CFR47) Part 68 FCC Part 68 EN 5 5022 C la ...

  • Cisco Systems IP phone 7960 - page 183

    C-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appendix C Tech nical Speci fications Cable Specifica tions Cable Specifications The fo llowing cables are re quired to connect the Cisco SIP IP phone: • RJ-11 for the handset connection • RJ-45 jack for the LAN connec tion (labeled “1 0/100 SW”) . • RJ-45 j ack for a second 1 ...

  • Cisco Systems IP phone 7960 - page 184

    Append ix C Technic al Specifi cations Connec ti ons Specif ication s C-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 ...

  • Cisco Systems IP phone 7960 - page 185

    D-1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 APPENDIX D Translated Safety Warnings This appendix repeats in multiple languages the warnings that appear in the “Getting Started with Y our Cisco SIP IP Phone” chapter o f this gui de. Installation Warning War ni ng Read the installation inst ructions before you connect the sy ste ...

  • Cisco Systems IP phone 7960 - page 186

    Appendi x D Transla te d Safety War nings D-2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 ¡Advert encia ! V er las instrucciones de instalación antes de conectar el sistema a la red de alim entación. Va r n i n g ! Lä s ins tallationsan v isningarna inn an du kopp lar sys temet till dess strömförsörjningse nhet. Product Disp osa ...

  • Cisco Systems IP phone 7960 - page 187

    D-3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appen dix D Trans la ted Safe ty Warnin gs Lightning Activity Warning War ni ng Do not work on the sy stem or connect or disconnect cables during periods of lightning activity . W aarschuwing T ijdens onwe er dat gepaard gaat met blik sem, dient u niet aan het systeem te werke n of kabe ...

  • Cisco Systems IP phone 7960 - page 188

    Appendi x D Transla te d Safety War nings D-4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 SEL V Circu it W ar ning ( other v ersions av ailab le) War ni ng T o avoid electric shock, do not connect safety extra-low voltage (SEL V) circuit s to telephone-network voltage (TNV) c i rcuits. LAN ports contain SEL V circuits , and W AN ports ...

  • Cisco Systems IP phone 7960 - page 189

    D-5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appen dix D Trans la ted Safe ty Warnin gs A v verte nza Per e vitare scosse elettriche , non c ollegare circuiti di sicure zza a tensione molto bassa (SEL V) ai cir cuiti a tension e di rete telefonica (TNV). Le porte LAN con tengono circ uiti SEL V e le po rte W AN conten gono c ircui ...

  • Cisco Systems IP phone 7960 - page 190

    Appendi x D Transla te d Safety War nings D-6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 Circuit Breaker (15A) Warning War ni ng This product relies on the building’ s inst allation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC , 15A U.S. (240 V AC, 10A internat ional) is us ...

  • Cisco Systems IP phone 7960 - page 191

    D-7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Appen dix D Trans la ted Safe ty Warnin gs Av i s o Este p roduto de pende das instalaç ões existentes p ara pr otecç ão c ontra curto-cir cuito (so brec arga). Assegur e-se de que um fusível ou disjun tor nã o superior a 240 V A C , 10A é utiliz ado nos condutores de f ase (todo ...

  • Cisco Systems IP phone 7960 - page 192

    Appendi x D Transla te d Safety War nings D-8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 ...

  • Cisco Systems IP phone 7960 - page 193

    1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 GLOSSA R Y A AAA Authentic ation, Authoriza tion, and Acc o unting. AAA is a suite of ne twork secu rity services that provides the prima ry f ramework throug h wh ich acces s c ontrol c an b e set up on your Cisc o route r or access serv er . ANI Automatic number identif ication. C CAS C ...

  • Cisco Systems IP phone 7960 - page 194

    Glossary 2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 CPE Customer pr emises equipment. T erminating equip m ent, such as terminal s, telephones, an d modems, supplied by the telephone compa ny , installed at the custome r sites, and connected to the telephone company ne twork . CSM Call sw itc hin g m odu le. D dial p eer An addr ess ...

  • Cisco Systems IP phone 7960 - page 195

    3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Glossary E E.164 The international public telecommunications numbering plan. A standard set b y I TU-T which addre sses telephone nu mbe rs. E&M Ear a nd mou th R BS sign aling . endpoi nt A SIP te rminal or gate way . An endpoint can call and be calle d. It gener a tes and/or ter m i ...

  • Cisco Systems IP phone 7960 - page 196

    Glossary 4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 I IVR Integrated voice respo nse . Whe n someon e dial s in, I VR resp onds wi th a prom pt to get a person al identification number (PIN ), a nd so on. L LEC Local e xchang e carrier . Location Se rver A SIP redirect or proxy server uses a a location service to get information abo ...

  • Cisco Systems IP phone 7960 - page 197

    5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Glossary P PDU Protocol data units used by bridges to tr ansfer connecti vity information. POTS Plain old telephon e service . Basic telephon e service supp lying standard single line telephone s, telephone lines, an d access to the PSTN. Proxy S erver An intermed iary progra m that acts ...

  • Cisco Systems IP phone 7960 - page 198

    Glossary 6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 S SIP Session Initiation Protocol. This is a protocol developed b y the IETF MMUSIC W orking Group as an alternative to H.323. SIP f eatur es are c ompliant with IETF RFC 254 3, pu blished in M arch 1 999 . SIP equips platforms to signal the setup of vo ice and multimedia calls ov ...

  • Cisco Systems IP phone 7960 - page 199

    7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Glossary V VoIP V oice over IP . The ability to carry normal t elepho ne-style v oice ov er an IP-based Internet with PO Ts-like functionality , reliability , and voice quality . V oIP is a blanket term, which generally refers to Cisco’ s standards base d ( for exa mple H .323 ) app roa ...

  • Cisco Systems IP phone 7960 - page 200

    Glossary 8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 ...

  • Cisco Systems IP phone 7960 - page 201

    1 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 INDE X Numerics 10/100 PC p ort 1-14 10/100 SW p ort 1-14 1xx resp onses A-4 2xx resp onses A-4 3xx resp onses A-5 4xx resp onses A-5 5xx resp onses A-10 6xx resp onses A-10 A Accept- Encoding h eader field A-10 Accept header field A-10 Accept- Language header field A-10 accessing firmw a ...

  • Cisco Systems IP phone 7960 - page 202

    Index 2 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 C cable s connect ing 2-16 specifi cations C-3 call flows B-1 successful B-2 uns uccessful B- 58 call forward 1-9 call fowa rd 1-9 call hold 1- 9 Call -ID header field A- 11 call transfer 1-9 call waiting 1-9 circ uit breaker (15A) warning D-6 clients gateways 1-4 phones 1-4 SIP 1-4 c ...

  • Cisco Systems IP phone 7960 - page 203

    3 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Index Cont ent-Type head er field A-11 convention s, docum ent xi Cseq he ader field A-1 1 D Date head er field A-11 default conf iguration file 2-6, 2-7 exam ple 2-9, 3-15 guidelines 2-6 modifyin g 3-8 SIPDefault. cnf 2-4 default router para meters 3-4 DHCP description 1-10 enab ling 3-4 ...

  • Cisco Systems IP phone 7960 - page 204

    Index 4 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 exam ple default conf iguration file 3-15 phone-spec ific config uration file 3-18 Expir es header field A-1 1 F featu res call forward 1-9 call hold 1-9 call transfer 1-9 call waiting 1-9 do not disturb 1-9 second ary director y number 1-9 URL dial ing 1-10 file default 3-15 phone-sp ...

  • Cisco Systems IP phone 7960 - page 205

    5 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Index initialization process 2-1 installation 2-3 dow nloadi ng requ ired f iles 2-4 network pa rameters 2-13 safety warnings D-1, D -3 SIP parameters 2-5 task summary 2-3 Int ernet Co ntrol Messa ge Prot ocol (ICMP) 1-11 Internet Protocol (I P) 1-11 INVITE retr ansmiss ion expi ration 3- ...

  • Cisco Systems IP phone 7960 - page 206

    Index 6 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 modifyin g network pa rameters 3-2, 3-3 SIP parameters 3-8, 3-15 mute toggle 1-7 N name, co nfiguring 3-16 naming c onven tio n, ph one-sp ecific configura tion file 2-6 network connec tions 1-13 parame ters admini strati ve VLAN ID 3-4 altern ate TFTP 3-5 configuring v ia D HCP 2-14 ...

  • Cisco Systems IP phone 7960 - page 207

    7 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Index admini strati ve VLAN ID 3-4 altern ate TFTP 3-5 default route rs 3-4 DHCP addr ess rel eas e 3-4 DHCP enable 3-4 DHCP server 3-3 DNS server 3-4 domain na m e 3-3 eras e confi gur atio n 3-5 guidelines 2-13 host name 3-3 IP addre ss 3-3 MAC a ddr ess 3-3 modifyin g 3-2, 3-3 operatio ...

  • Cisco Systems IP phone 7960 - page 208

    Index 8 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 connec tions 1-13 access p ort 1- 14 network 1-13 network por t 1-14 featu res dialing pad 1-7 foot stand ad justment 1-6 handset 1-7 headset 1-15 headset an d speaker togg le 1-7 information bu tton 1-6 LCD sc reen 1-6 line buttons 1-6 mute to ggl e 1-7 on-scre en mode k eys 1-7 phys ...

  • Cisco Systems IP phone 7960 - page 209

    9 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Index DHCP 1-10 DNS 1-10 ICMP 1-11 IP 1-11 RTP 1-11 SDP 1-11 SNTP 1-11 TFTP 1-12 UDP 1-12 Proxy- Authenticat e header field A-11 Proxy- Authorization header f ield A-11 proxy po rt specifying 3-9 Proxy-R equired he ader field A-11 proxy serve r 1-5 addres s 3-20 port 3-20 registration, e ...

  • Cisco Systems IP phone 7960 - page 210

    Index 10 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 S safety war nings, translated D-1 circ uit breaker (15A) warning D-6 installation war ning D-1 lightning activity wa rning D- 3 product d isposal wa rning D-2 SELV circuit warning D-4 scroll key 1-7 SDP, description 1-11 SDP, usage A-12 second ary director y number 1-9 SELV circuit ...

  • Cisco Systems IP phone 7960 - page 211

    11 Cisco S IP IP Phone 7960 Admi nistrat or Guide 78-10497-02 Index Register Expir es 3-21 Register with p rox y 3-21 Short Name 3-19 request m ethods B-1 responses A-3 global (6x x) A-10 informa tion (1 xx) A-4 redirection ( 3xx ) A-5 request f ailur e (4 xx) A-5 server failure (5 xx) A-10 successful (2xx) A-4 SDP usage A-12 servers proxy 1-5 redi ...

  • Cisco Systems IP phone 7960 - page 212

    Index 12 Cisco SIP IP Phon e 7960 Administrator Guide 78-10497-02 timer registra tion 3-11, 3-21 retransmission 3-10 timer_t2 3-10 timers, retransmissi on 3-10 Time stamp header fie ld A- 12 toggle heads et and s peaker 1-7 mute 1-7 To header field A-12 TOS medi a specifying 3-9 transla ted safet y warnings D-1 circ uit breaker (15A) warning D-6 in ...

Manufacturer Cisco Systems Category IP Phone

Documents that we receive from a manufacturer of a Cisco Systems IP phone 7960 can be divided into several groups. They are, among others:
- Cisco Systems technical drawings
- IP phone 7960 manuals
- Cisco Systems product data sheets
- information booklets
- or energy labels Cisco Systems IP phone 7960
All of them are important, but the most important information from the point of view of use of the device are in the user manual Cisco Systems IP phone 7960.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Cisco Systems IP phone 7960, service manual, brief instructions and user manuals Cisco Systems IP phone 7960. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Cisco Systems IP phone 7960.

Similar manuals

A complete manual for the device Cisco Systems IP phone 7960, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Cisco Systems IP phone 7960 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Cisco Systems IP phone 7960.

A complete Cisco Systems manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Cisco Systems IP phone 7960 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Cisco Systems IP phone 7960, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Cisco Systems IP phone 7960, that we can find in the current document
3. Tips how to use the basic functions of the device Cisco Systems IP phone 7960 - which should help us in our first steps of using Cisco Systems IP phone 7960
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Cisco Systems IP phone 7960
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Cisco Systems IP phone 7960 in a specific country, if it was not possible to solve the problem on our own.

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