Cisco 7912G, 7905G User Manual

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

Corporate Headquarters

Cisco Systems , Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 526-4100

Text Part Number: OL-4277-01

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THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORT H IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC com pliance of Class B devices: T he equipm ent described in this manual gener ates and may radi ate radio-frequency energy. If it is not installed in accordance with Cisco’ s installation instructions, it may cause interference with radio an d television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential instal lation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipmen t without Cisco’s written authorization may resul t i n the equipment no longer complying with FCC requirements for Cla ss A or Class B digital devices. In that event, your ri ght to use the equi pment ma y be lim ited by FC C regul atio ns, and you m ay be required to correct any interference to radio or television com municat ions at yo ur own expen se.

You can determine whether your equipment is causing interference by turning it off. If the interferen ce stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception , try to correct the interference by using one or more of the following meas ures:

• Turn the television or radio antenna unt il the int erference st ops.

• Move the equipment to one side or the other of the televisio n or radi o.

• Move the equipment farther away from the te levision or radio.

• Plug the equip me nt into an outlet tha t is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit br eakers or fus es.)

Modifications to this product no t author ized by Cis co Syst ems, Inc. coul d voi d the FCC appro val and ne gate your authorit y to op erate the pr oduct. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of Cal ifo rn ia, Be rk el ey (UCB) as

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All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cis co and any oth er company . (0304 R)

Cisco IP Phone Models 7905G and 7912G Adm inistrato r Guide (SIP)

Preface xi

Overview xi Audience xi Organization xii Related Documentation xiii Obtaining Documentation xiii

World Wide Web xiii Documentation CD-ROM xiii Ordering Documentation xiv Documentation Feedback xiv

Obtaining Technical Assistance xiv

Cisco Connection Online xv Technical Assistance Center xv

CHAPTER

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Obtaining Additional Publicati ons and Information xvi Document Conventions xvii

1 Overview of the CiscoIP Phone Models 7905G and 7912G 1-1

Hardware Overview 1-1 Software Features 1-4

Protocols 1-4 Basic Services 1-5 Supplemental Services 1-5 SIP-Specific Services 1-6

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

Contents

SIP Overview 1-7

SIP Functions 1-7 SIP Components 1-8

CHAPTER

2 Installing the Cisco IP Phone Models 7905G and 7912G 2-1

Prerequisites 2-1 Safety 2-2 Connecting to the Network 2-4 Providing Power to the Cisco IP Phone 2-5

Power Source Design 2-5 Redundancy Feature 2-6

Installing the CiscoIP PhoneModels 7905G and 7912G 2-6

Physical Installation of the CiscoIPPhone Models 7905G and 7912G 2-7 Mounting the Phone to the Wall 2-12 Basic Configuration of the CiscoIP Phone Models 7905G and 79 12G 2-13

Verifying Installation 2-15

3 Configuring the CiscoIP Phone Models 7905G and 7912G for SIP 3-1

Overview of Configuration Methods 3-1 Default Boot Load Be havior 3-2 Specifying a Prec onfigured VLAN ID or Disabling VLAN IP Encapsulation 3-4

Basic Configuration Steps in a TFTP Server Environment 3-6 Minimum Configuration Settings for the CiscoIPPhone Models 7905G and

7912G

3-9

Making Settings with a DHCP Server 3-9 Making Settings Manually 3-10

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Contents

CHAPTER

4 Basic and Additional SIP Servi ces 4-1

Important Basic SIP Services 4-2

Required Paramete rs 4-2 Establishing Authentication 4-4 Configuring Refresh Interval 4-4

Additional SIP Services 4-4

Setting Up and Placing a Call Without Using a SIP Proxy 4-10

Complete Reference of all Cisco IP Phone SIP Services 4-12

5 Configuring the Cisco IP Phone Models 7905G and 7912G Using the Phone

Menus

5-1

Configuratio n Menus on the CiscoIP Phone 5-2

Displaying a Conf iguration Menu 5-3 Unlocking and Locking Configuration Parameters 5-4

Editing Paramet er Values 5-5 Network Configuration Menu 5-6 SIP Configuration Menu 5-14 Model Information Menu 5-17

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Status Menu 5-18

6 Configuring the Cisco IP Phone Models 7905G and 7912G Using a TFTP

Server

6-1

Using Profiles with TFTP Configuration 6-2 Setting Up the TFTP Server with Cisco IP Phone Software 6-4 Configuring the CiscoIP Phone to Obtain its Configuration File from the TFTP

Server

6-5

Using a DHCP Server 6-5

Without Using a DHCP Server 6-8

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Contents

Creating or Updating a Profile 6-9

Profile Conventions 6-10

Creating a Phone-Specific Profile 6-11

Creating a Default Profile 6-13 Using Encryption 6-15 Refreshing or Resetting the CiscoIP Phone 6-17

Refreshing the Cisco IP Phone 6-17

Resetting the Cisco IP Phone 6-17

CHAPTER

7 Configuring the CiscoIP Phone Models7905G and 7912G Using Web

Pages

7-1

Accessing a Phone’s Web Page 7-2 Viewing Statis tical and Operational Informati on 7-4

Device Information 7-4

Network Configura tion 7-5

Network Statistics 7-6

8 Profile and Web Page Parameters and Defaults 8-1

Network Parameters 8-2 SIP Parameters 8-9 Call Preference Parameters 8-13 Tone Paramete rs 8-21 Audio Parameters 8-24 Profile Param e te rs 8-26 Parameter Det ails 8-27

BusyTone, CallWait Tone, DialTone, DialTone2, and Ri ngBackTone Parame ter

Details

8-28

ReorderTone Para meter Details 8-30

ConnectMode Detail 8-36

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DialPlan Parameter Detail 8-38

Upgradecode Parameter Detail 8-41

Upgradelogo Parameter Detail 8-43

Contents

CHAPTER

APPENDIX

9 Troubleshooting the Cisco IP Phone Models 7905G and 7912G 9-1

General Troubleshooting Tips 9-1 Resolving Probl ems 9-2 Contacting TAC 9-5 Debugging 9-5

A Additional End User Features on the CiscoIP PhoneModels 7905G and

7912G

A-1

Call Preferences Menu A-1 Softkeys A-6 Other Features A-7

B Phone Menu, Web Page, and Profile Equivalent Parameters B-1

C SIP Call Flows C-1

Supported SI P Request Meth od s C-1 Call Flow Scenarios for Successful Calls C-2

CiscoIP Phone-to-SIP Server—Registration without Authentication C-2

CiscoIP Phone-to-SIP Server—Registration with Authentication C-4

CiscoIP Phone-to-Cisco IP Phone—Basic SIP to SI P Call without

Authentication

C-7

CiscoIP Phone-to-Cisco IP Phone—Basic SIP to SI P Call with

Authentication

C-15

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Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

Contents

APPENDIX

LOSSARY

NDEX

D Specifications for the Cisco IP Phone Models 7905G and 7912G D-1

Physical Specifications D-2 Electrical Specifications D-2 Environmental Specifications D-3 Physical Inte rf ac es D-3 Software Specifications D-3

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Overview

Preface

Cisco IP Phone Mode ls 79 05G and 79 12G Adm inist rator G uide ( SIP ) desc ribes how to install and configure the Cisco IP Phone models 7905G and 7912G for use on a Session Initiation protocol (SIP) network. It includes configuration steps for network parameters, sta ndard se rvice s, an d s upple ment al serv ice s.

This guide does not cover information that is related to the implementation of a SIP Voice over IP (VoIP) network.

Audience

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This guide is i nte nd ed fo r ser vice provi der s and ne twor k adm ini stra tors w ho administer V oIP services using the Cisco IP Phone models 7905G and 7912G and who have a fundamental understand ing of SIP. The tasks described in this guide are not intended for end users of the p hones. Man y of these tasks af fect th e ability of a phone to function on the network and requir e an understa nding of IP networking and tel ephony c once pts.

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

Organization

This manual i s organiz ed as fol lows:

Preface

Chapter 1, “Overview of the Cisco IP Phone Models 7905G an d 7912G”

Chapter 2 , “Installing the Cisco IP Phone Models 7905G and 79 12G ”

Chapter 3, “Configurin g the Cisco IP Phone Models 7905G an d 7912G for SIP”

Chapter 4, “Basic and Additional SIP Services” Prov ides info rmation ab out basic and additio nal SIP

Chapter 5, “Configuring the Cisc o IP Phone Models 7905G a nd 7912G Usin g th e Phon e Menus”

Chapter 6, “Configuring the Cisc o IP Phone Models 7905G and 79 12G Usin g a TFT P Server”

Chapter 7, “Configurin g the Cisco IP Phone Models 7905G and 7912 G Using Web Pages”

Chapter 8, “Profile and Web Page Parameters and Defaults”

Chapter 9, “Troubleshoo ting th e Cisco IP Phone Models 7905G and 7912 G”

Appendix A, “Additional End User Features on the Cisco IP Phone Models 7905G and 791 2G”

Appendix B, “Phone Menu , Web Page, and Profile Equivalent Parameters”

Appendix C, “SIP Call Fl ows” Describes some basic call flows for the p hone

Describes the hardware and software features of the phone and provid es a b rief overview of SIP

Provides procedures for i nstalling t he phone at an end user location

Provides an overview of how to configure the phone to operate with the SIP signa ling ima ge

services that the ph one suppo rts Explains how to use me nus on t he p hon e to

configure or view a variety of n etwork, SI P, and phone settings

Explains how to configure a phone using a Trivial File Transfer Protocol (TFTP) server

Describes how to use a p hon e’s web page to configure parameters a nd obta in in for mat ion

Describes the para met ers t hat y ou ca n use t o configure a phone t hrough a p rofile or thr oug h a phone’s web page

Provides guidance fo r di ag nosin g and c orre cting installation and configuration errors

Describes end-user features that are not explained in the User Guide for the phone

Lists the configurable options on the phone menus and their equivalent parameters in t he phone configuration web page s and p rofile

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Preface

Related Docu m e ntation

Appendix D, “Specifications for the Cisco IP Phone Models 7905G and 7912 G”

Glossary Explains terms that may be new to you

Provides physical, elec trical , environmental, and software specifications for the phone

Obtaining Documentation

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.

Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

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Obtaining Technical Assistance

Ordering Documentation

Registered CCO users can order the Docume ntation CD-ROM and other Cisco Product documenta tion t hroug h our on line Subscri ptio n Se rvi ces a t http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.

Nonregistered CCO u ser s ca n o rder do cum ent ation t hroug h a loca l a cco unt representative by calling Cisco’s corporate head qua rte rs (Cali forni a, U SA ) at 408 526-4000 or, in North Am er ica , ca ll 8 00 553-N ET S (6387).

Documentation Feedback

If you are reading Cisco product documentation on the W orld W ide Web, you can submit technical comments electronically. Click Feedback in the toolbar and select Documentation. After you complete the form, click Submit to send it to Cisco.

You can e- mail yo ur comm ents to bug-do c@cisco. com. T o submit your comments by mail, for your convenience many documents contain

a response card behind the front cover. Otherwise, you can mail your c omment s to the following address:

Preface

Cisco Systems, Inc. Document Resource Connect ion 170 West Tasman Dr ive San Jose, CA 95134- 988 3

We appreciate and valu e your co mmen ts.

Obtaining Technical Assistanc e

Cisco provides Cisco Conne ct ion Onlin e (CC O) a s a star ting poi nt f or a ll technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail , a self-addr essed stamped respo nse card included in many printed doc s, or by sending mail to Cisco.

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Preface

Cisco Connection Online

Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in th e world. This highly integrated Internet applicat ion is a powerful, easy-to-use t oo l fo r doi ng business wit h Ci sco.

CCO’s broad range of features and services helps cu stomers and partners to streamline business processes and improve productivity. Through CCO, you will find information about C isco a nd our n etworki ng solu tion s, se rvic es, a nd programs. In addition, you can resol ve technica l issues with online supp ort services, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.

Customers and partners can self-register on CCO to obtain additional personalized inform ation and services. Registere d users may ord er produc ts, check on the st at us o f an or de r an d v iew ben efits sp eci fic to t hei r relat ionsh i ps with Cisco.

You can ac cess CCO in the foll owing ways:

Obtaining Technical Assistance

• WWW: ww w.cisco.com

• Telnet: cco.cisco.com

• Modem using standard c onn ect ion ra tes and the fo llowing ter mina l sett ings:

VT100 emulation; 8 data bits; no parity; and 1 sto p bit.

–

From North Amer ica, c all 4 08 526 -80 70

–

From Europe, call 3 3 1 64 46 40 82

You can e- mail qu estion s about using CCO to cco- team@ cisco. com.

Technical Assistance Center

The Cisco Technical Assistanc e Center (TAC) is available to warranty or maintenance co ntra ct cus tomers who need tech nical assist ance with a Ci sco product that is under warrant y or covered by a maint enance cont ract.

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Obtaining Additional Publications and Information

To display the TAC web site that includes links to technical support information and software upgr ad es an d for r eques ting TAC support, use www.cisco.com/techsupport.

To contact by e-mail, use one of the following:

Language E-mail Addres s

English tac@cisco.com Hanzi (Chinese) chinese-tac@cisco.com Kanji (Japanese) japan-tac@cisco.com Hangul (Korean) korea-tac@cisco.com Spanish tac@cisco.com Thai thai-tac@cisco.com

In North America, TAC can be reached at 800 553-2447 or 408 526- 7209. For other telephone number s and TAC e- mail addresses world wide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.

Preface

Obtaining Additional Publications and Information

Information about C isco pr odu cts, te chnol og ies, a nd network solu tio ns is available from various online and printed sources.

• The Cisco Product Catalog describe s the ne tworking p roduc ts offere d by

Cisco Systems, as well as ordering and customer support services. Access the Cisco Product Catalog at this URL:

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

• Cisco Press publishes a wi de r ange of n etworki ng pu bli cati ons. Cisc o

suggests these titles for new and experien ced use rs: Internetwork ing Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. For current Cisco Press titles and other information, go to Cisco Press

online at this URL:

http://www.ciscopress.com

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Preface

Document Conventions

• Packet magazine is the Cisco quarterly publication that provides the latest

networking trends, t echn ology br eakt hr oughs, and Ci sco p rod ucts and solutions to help industry professionals get the most from their networking investment. Included are networking deployment and trouble shootin g tips, configuration examples, cu stomer case stu dies, tuto rials and tra ining, certification information, and links to numerous in-depth online resources. You can ac cess Packet magazine at th is U RL:

http://www.cisco.com/go/packet

• iQ Magazine is the Cisco bimonthl y publica tion that de livers the latest

information about Internet business strategies for executives. You can access iQ Magazine at this URL:

http://www.cisco.com/go/iqmagazine

• Internet Protocol Journal is a quarterly jour nal publis hed by Cisco Systems

for engineering p rofe ssiona ls i nvolved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journa l at this UR L:

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_ protocol_journal.htm l

• Training—Cisco offers world-class networking training. Current offerings in

network training are listed at this URL:

http://www.cisco.com/en/US/learning/le31/learning_recommended_training _list.html

Document Conventions

This docume nt u s es the f ol lowing conventions:

Convention Description

boldface font Commands and keywords a re in boldface.

italic font Arguments for which you supply values are in itali c s . [ ] Elements in square brackets are optional. { x | y | z } Alternative keywords are grouped in braces and separat ed by vertical bars .

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Preface

Document Conventions

Convention Description

[ x | y | z ] Optional alterna tive keywords are grouped in bra ckets and sep arated by

vertical bars.

string A nonquoted set of characters. Do not use quotation marks around the string

or the string will include the quotati on marks.

screen font Terminal sessions and information the system displays are in screen font.

boldface screen font Information you must enter is in boldface screen font.

italic screen font Arguments for which you supply values are in italic s creen font . ^ The symbol ^ r e pres ent s the key labe led Cont rol— fo r examp le, th e key

combination ^D in a screen di splay means ho ld down the Control k e y while you press the D key.

< > Nonprinting characters, such as passwords are in angle brackets.

Note Means reader take note. Notes contain helpful suggestions or references to

material not covered in the pub lication .

xviii

Caution Means rea der be careful. In this situation, you might do something that could

result in equipment damage or l oss of data.

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Preface

Document Conventions

Warnings use the following conventions:

Warning

Waarschuwing

Varoitus

IMPORTANT SAFETY INSTRUCTIONS This warning symbol means danger. You are in a situation that could cause

bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device.

Statement 1071

SAVE THESE INSTRUCTIONS

BELANGRIJKE VEILIGHEIDSINSTRUCTIES Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die

lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen.

BEWAAR DEZE INSTRUCTIES

TÄRKEITÄ TURVALLISUUSOHJEITA Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia

vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.

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SÄILYTÄ NÄMÄ OHJEET

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Document Conventions

Preface

Attention

Warnung

Avvertenza

IMPORTANTES INFORMATIONS DE SÉCU RI TÉ Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une

situation pouvant entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.

CONSERVEZ CES INFORMATIONS

WICHTIGE SICHE RHEIT SHINWEI SE Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die

zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie m it der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.

BEWAHREN SIE DIESE HINWEISE GUT AUF.

IMPORTANTI ISTRUZIONI SULLA SICUREZZA

Questo simbolo di avvertenza indica un pericolo. L a situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento.

CONSERVARE QUESTE ISTRUZIONI

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Preface

Document Conventions

Advarsel

Aviso

¡Advertencia!

VIKTIGE SIKKERHETSINSTRUKSJONER Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade

på person. Før du begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten.

TA VARE PÅ DISSE INSTR UKSJ ONENE

INSTRUÇÕES IMPORTANTES DE SEGURANÇA Este símbolo de aviso significa perigo. Você está em uma situação que poderá

ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.

GUARDE ESTAS INSTRUÇÕES

INSTRUCCIONES IMPORTANTES DE SEGURIDAD Este símbolo de aviso indica peligro. Existe riesgo para su integridad física.

Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.

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GUARDE ESTAS INSTRUCCIONES

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Document Conventions

Preface

Varning!

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SPARA DESSA ANVISNINGAR

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Preface

Document Conventions

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Document Conventions

Preface

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CHAPTER

Overview of the Cisco IP Phone Models 7905G and 7912G

This chapter describ es the hard ware an d software featur es of the Cisco IP Phone models 7905G and 7912G and pr ovides a brief overview of the Session Initiation Protocol (SIP).

This chapter includes the following sections:

• Hardware Overview, page 1 -1

• Software Features, pa ge 1-4

• SIP Overview, page 1-7

Hardware Overview

The Cisco IP Phone models 7905G and 791 2G are cost- effective, entry-level, single-line telephone s that ope rat e on I P-ba se d tel ephony ne twor ks. They c an function as desk units or be mounted on a wall. The phones are easily installed by end-users.

Figure 1-1 shows the main components of the Cisco IP Phone models 7905G and

7912G.

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1-1

Hardware Overview

Chapter 1 Overview of the CiscoIP Phone Models 7905G and 7912G

Figure 1-1 Cisco IP Phone Models 7905G and 7912G Features

1-2

1 LCD screen Displays features su ch as the tim e, date, you r phone

number, caller ID, call status, and softkey tabs.

2 Cisco IP Phon e

series type

Indicates the Cisco IP Phone ser ies to which th e phone belongs.

3 Softkeys Enable you to e ngage any of the func ti ons di spla yed o n

the correspondin g LCD scr een tabs . Softkeys point to feature options displayed along the bo ttom of the LCD screen. Softkey functions change depending on the status of your phone (for exampl e, if the phon e is ac tive or idle).

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Chapter 1 Overview of the Ci sco IP Phone Models 7905G and 7912G

Hardware Overview

4 Navigation

button

Enables you to scroll through text and select features displayed on the LCD screen. Also provides access to speed dial numbers when there are no text or features to scroll through.

5 Menu button Provides access to phone services and setti ngs such as

messages, direct ori es, con tr ast, r ing soun d, net work configuration, and status information.

6 Hold button Puts a current call on hold or ta kes a cal l off hold.

7 Dial pad Works exactly like the di al pad on a tra dition al

telephone.

8 Volume button Increases or decreases volume for the handset and

speaker. Also controls the rin ge r volum e (i f o n-h ook) .

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9 Handset Functions like a traditional handse t. The light strip at the

top of the ha nds et b l inks wh en the p hone ri ngs a nd remains lit to indicate a new voice mail message (depending on y our m essag e syste m).

10 Footstand Allows the phone to stand at a convenient angle on a desk

or table.

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Software Features

The Cisco IP Phone models 7905 G and 791 2G su ppo rt t he f oll owing software features:

• Protocols, page 1-4

• Basic Services, page 1-5

• Supplemental Services , pa ge 1-5

• SIP-Specific Services, page 1-6

Protocols

The Cisco IP Phone models 7905 G and 791 2G su ppo rt t he f ollowing pr ot ocols:

• Domain Name S yste m (DNS )

• Dynamic Host Configuration Protocol (DHCP)

• Internet Control Message Protocol (ICMP)

• Internet Protocol (IP)

Chapter 1 Overview of the CiscoIP Phone Models 7905G and 7912G

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• Network Time Protocol (NTP)

• Real-Time Transport Protocol (RTP)

• Session Initiation Protocol (SIP)

• Transmission Control Protocol (TCP)

• Trivial File Transfer Protocol (TFTP)

• User Datagram Pr ot ocol (U DP )

Related Topics

• Basic Services, page 1-5

• Supplemental Services , pa ge 1-5

• SIP-Specific Services, page 1-6

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Chapter 1 Overview of the Ci sco IP Phone Models 7905G and 7912G

Basic Services

The Cisco IP Phone models 7905G and 791 2G provide the fo llowing basic services:

• Configuration using LCD screen menus, TF TP server, or web browser

• IP address assignment—DHCP or manual static IP address

• Configurable Type of Service (ToS) bit for Quality of Service (QoS)

• Configurable tone (busy tone, call waiting tone , dial tone , seco ndary dial

tone, reorder tone, ringb ack t one)

• Dial plan support

• Remote reset suppo rt

• G.711 u-law, G.711 A-law, and G.729A supp ort

• Voice-ac tivity-d et ecti on (VAD) and comfort-noise-ge ner ation ( CN G )

support for G.711 u-l aw and G.7 11 A-l aw, and support for G .729 A nnex B

• Dynamic jitter buffer for voice packets

Software Fea t ures

Related Topics

• Protocols, page 1-4

• Supplemental Services , pa ge 1-5

• SIP-Specific Services, page 1-6

Supplemental Services

The Cisco IP Phone models 7905 G and 791 2G su ppo rt t he f oll owing supplemental services:

• Call waiting

• Calling line ID presentation/rejection (CLIP/CLIR)

• Three-way calling

• Conferencing bridge—up to three parties

• Call hold

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Software Features

• Call transfer—attended and unattended

• Message-waiting indicator

Related Topics

• Protocols, page 1-4

• Basic Services, page 1-5

• SIP-Specific Services, page 1-6

SIP-Specific Services

The Cisco IP Phone models 7905G and 7912G support the following SIP-specific services:

• Direct IP dial ing in a dd ition t o pr oxy -ro uted c a lls.

• Configurable periodic registration with a SIP proxy server.

• Authentication support for all SIP methods.

• Configurable NAT supp ort.

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• Configurable outbound proxy supp ort.

• Local support for call return (or call back), call forwarding, and call transfer.

• FQDN for SIP proxy and ou tboun d pro xy.

• Uses the same configurable MediaPort to transmit and receive RTP audio.

• Out-of-Band DTMF vi a RFC2 833 ( also known as AVT tones).

• UDP for SIP signaling.

• Message-waiting indication (MWI) provided via the telephone-handset LED

lamp.

• Distinctive ringing support via the SIP Aler t-In fo header.

Related Topics

• Protocols, page 1-4

• Basic Services, page 1-5

• Supplemental Services , pa ge 1-5

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+ 208 hidden pages

Cisco 7912G, 7905G User Manual

CONTENTS

Overview

Preface

Audience

Organization

Related Docu m e ntation

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Obtaining Technical Assistance

Ordering Documentation

Documentation Feedback

Cisco Connection Online

Technical Assistance Center

Obtaining Additional Publications and Information

Document Conventions

Hardware Overview

Software Features

Protocols

Basic Services

Supplemental Services

SIP-Specific Services