Cisco Systems manual Troubleshooting Cisco IP Phone Models 7905G and 7912G

Page 165

C H A P T E R 9

Troubleshooting the

Cisco IP Phone Models 7905G and 7912G

This chapter describes some basic testing and troubleshooting procedures for the Cisco IP Phone models 7905G and 7912G. It contains the following sections:

•General Troubleshooting Tips, page 9-1

•Resolving Problems, page 9-2

•Contacting TAC, page 9-5

•Debugging, page 9-5

General Troubleshooting Tips

The suggestions in this section are general troubleshooting tips.

•If using a Dynamic Host Configuration Protocol (DHCP) server, make sure that it is operating correctly. The DHCP server should show an incoming request from the MAC address listed on the product label.

•If you do not see the status screen after you connect the Ethernet cable, make sure the power cord and the Ethernet connection are secure.

•If you do not hear a dial tone, make sure that the telephone-handset line cord is plugged into the Cisco IP Phone port. Also make sure that the appropriate Ethernet cable (crossover or straight-through) is used, and that all cable connections are secure.

 

 

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

 

 

 

 

 

 

OL-4277-01

 

 

9-1

 

 

 

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Contents Corporate Headquarters Page Copyright 2003 Cisco Systems, Inc. All rights reserved Page N T E N T S Overview of Configuration Methods Default Boot Load Behavior Vii Setting Up and Placing a Call Without Using a SIP ProxyViii Using EncryptionResolving Problems Contacting TAC Debugging O S S a R Y D E Audience OverviewXii OrganizationObtaining Documentation Related DocumentationWorld Wide Web Documentation CD-ROM XiiiOrdering Documentation Obtaining Technical AssistanceDocumentation Feedback XivTechnical Assistance Center Cisco Connection OnlineXvi Language Mail AddressDocument Conventions Convention DescriptionXvii Xviii Italic screen fontWaarschuwing Belangrijke Veiligheidsinstructies Varoitus Tärkeitä TurvallisuusohjeitaXix Avvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseXxi Aviso Instruções Importantes DE SegurançaXxii Varning! Viktiga SäkerhetsanvisningarXxiii Xxiv Hardware Overview Overview Cisco IP Phone Models 7905G and 7912GCisco IP Phone Models 7905G and 7912G Features OL-4277-01 Software Features ProtocolsRelated Topics Supplemental Services Basic ServicesProtocols, Basic Services, Supplemental Services, SIP-Specific ServicesSIP Functions SIP OverviewRelated Topic SIP ComponentsSIP Clients SIP Servers Prerequisites Installing the Cisco IP Phone Models 7905G and 7912GSafety Installing the Cisco IP Phone Models 7905G and 7912G Safety Connecting to the Network Power Source Design Providing Power to the Cisco IP PhoneRedundancy Feature Installing the Cisco IP Phone Models 7905G and 7912GRelated Topic Procedure Installing the Cisco IP Phone Models 7905G and 7912G Cisco IP Phone 7905G Cable Connections Cisco IP Phone 7912G Cable Connections Mounting the Phone to the Wall Procedure Parameter Values section on Verifying Installation OL-4277-01 Overview of Configuration Methods Configuring Cisco IP Phone Models 7905G and 7912G for SIPDefault Boot Load Behavior OL-4277-01 SEPxxxxxxxxxxxx.cfg.xml Feature VLANSettingBits ExampleBasic Configuration Steps in a Tftp Server Environment Profile section on Procedure ReferenceSee the Network Parameters Making Settings with a Dhcp Server Making Settings Manually Setting Configuration Menu WebParameter on Network Basic and Additional SIP Services Default Important Basic SIP ServicesRequired Parameters MinimumMinimum Maximum Default Parameter Description Value NatipNAT Additional SIP Services Establishing AuthenticationConfiguring Refresh Interval Parameters section on SIP Service Description ReferenceDNS SRV 8-2 and the SIP NAT/PAT Proxy Cisco IP phone supports next hop server Setting Up and Placing a Call Without Using a SIP Proxy UID Configurable Feature Or on Web Phone Menu Complete Reference of all Cisco IP Phone SIP ServicesRelated Parameter on DNS1IPPWD NtpipDNS2IP TOS Configuring the Cisco IP Phone Configuration Menus on the Cisco IP Phone Displaying a Configuration Menu Unlocking and Locking Configuration Parameters Editing Parameter Values Parameter Description To Change Network Configuration MenuNetwork Configuration Menu Parameter Description To Change Parameter Description To Change Press the Save softkey Dhcp URLParameter Description To Change Parameter Description To Change Encryption section on SIP Configuration MenuSIP Configuration Menu Parameters Parameter Description To Change NAT WAN IP Model Information MenuStatus Menu Server Using Profiles with Tftp Configuration Related Topics Setting Up the Tftp Server with Cisco IP Phone Software Using a Dhcp Server, Using a Dhcp ServerOther Dhcp Options You Can Set, Other Dhcp Options You Can Set Without Using a Dhcp Server Creating or Updating a Profile Profile Conventions Creating a Phone-Specific Profile Procedure Creating a Default Profile Gkdefault.cfg Using Encryption Syntax examples Refreshing or Resetting the Cisco IP Phone Resetting the Cisco IP PhoneRefreshing the Cisco IP Phone OL-4277-01 A P T E R Accessing a Phone’s Web Procedure Device Information Viewing Statistical and Operational InformationField Explanation Network ConfigurationNetwork Statistics Field Explanation OL-4277-01 Profile and Web Page Parameters and Defaults Network Parameters Parameter Description Default valueValue type Integer Value type IP address Default value DNS1IP, DNS2IP Default value 0 use DhcpValue type Bitmap Default value 0x0000002B For debugging, see the Debugging section on SIP ParametersUID, PWD Agents can communicate with the phone Value type Bitmap Call Preference Parameters Call Preference Parameters Parameter Description Parameter Description Default value hia Default value 20 seconds Default value 0xFFFFFFFF Default value 0xFFFFFFFFparametersnetwork$startrange Tone Parameters Tone Parameters Default value 2,4,25 Audio Parameters Audio Parameters Profile Parameters Parameter Details OL-4277-01 = 0.5 * 10k + 9 n 1 * 3 Cadence with Two On-Off Pairs ReorderTone Parameter DetailsSyntax of the ReorderTone parameters is Cadence with Three On-Off Pairs ReorderTone Parameter Example1 Component Setting ExplanationReorderTone Parameter Example Reorder Tone Parameter Example 2 Explanation Bit Description ConnectMode DetailBit Description RxStat Dur=a,Pkt=b,Oct=c,LatePkt=d,LostPkt=e,AvgJit=f DialPlan Parameter DetailCharacter Action String Effect Dial Plan Rules ExampleUpgradecode Parameter Detail 0x0400, 0x0100 preceding tftpserverip Process Upgradelogo Parameter DetailOpen a command window and type the following command Add the following line to the Cisco IP Phone profile OL-4277-01 General Troubleshooting Tips Troubleshooting Cisco IP Phone Models 7905G and 7912GResolving Problems Wait for a few moments Plug in the Ethernet cable Resolving Problems Debugging Contacting TACDebugging Related Topics OL-4277-01 Values section on Call Preferences MenuTo display the Call Preferences menu, follow these steps See the Softkeys section on page A-6 for See the Other Features section on Parameter Description To Change Softkey Description SoftkeysDefault Other FeaturesFeature Description Phone Menu Parameter Equivalent ParametersLocal SIP Port SIPPort Login ID LoginID NAT WAN IP Address Supported SIP Request Methods SIP Call FlowsCall Flow Scenarios for Successful Calls Step Action Description Table C-2 Log Listing Table C-3 Action Descriptions Table C-4 Log Listing Expires Content-Length Invite Table C-5 Action Descriptions Log Listing Table C-6 Log Listing Table C-6 Log Listing ACK sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP BYE sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP OL-4277-01 Trying Proxy Authentication Required ACK Table C-7 Action Descriptions Step Action Description Table C-8 Log Listing Expires Content-Length Content-Type application/sdp Table C-8 Log Listing =9314 8644 8644 in IP4 192.168.3.232 s=Cisco 7905 SIP Call ACK sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP BYE sip9314@192.168.3.232user=phone SIP/2.0 Via SIP/2.0/UDP Specifications for Cisco IP Phone Models 7905G and 7912G Physical Specifications Electrical SpecificationsDescription Specification Environmental Specifications Software SpecificationsPhysical Interfaces Software Specifications GL-1 NumericsGL-2 GL-3 GL-4 GL-5 GL-6 GL-7 GL-8 GL-9 GL-10 GL-11 GL-12 IN-1 ACK C-1IN-2 IN-3 CDPIN-4 IN-5 DNSIN-6 Invite C-1IN-7 IN-8 IN-9 IN-10 Register C-1IN-11 SIPIN-12 DND A-7 TftpIN-13 IN-14 IN-15 IN-16
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7912G, 7905G specifications

Cisco Systems is a leading provider of networking and telecommunications equipment, and among its extensive range of products, the Cisco 7900 Series of IP phones has made a notable impact in enterprise communication. Key models in this series include the Cisco 7905G, 7912G, and 7902G, each designed to enhance productivity through advanced features, intuitive interfaces, and robust technology.

The Cisco 7905G is designed for basic telephony needs and is ideal for administrative environments or areas with high call volumes. It features a large single-line LCD display, providing users with clear visibility of call information. The phone supports Power over Ethernet (PoE), making installation easier and reducing clutter by eliminating the need for an additional power supply. Its hands-free and headset support enhances user convenience, allowing for easy multitasking during calls.

Moving on to the Cisco 7912G, this model is designed for more demanding communication requirements. It features a larger, backlit display, providing improved visibility in various lighting conditions. The Cisco 7912G supports up to 12 programmable line or feature keys, giving users the flexibility to tailor the phone to their specific needs. Additionally, it incorporates advanced audio technologies, such as wideband audio for enhanced voice clarity and a built-in speakerphone, allowing users to communicate effectively in busy environments.

The Cisco 7902G, while offering basic features, is a reliable choice for users who need straightforward, cost-effective telephony solutions. It features an intuitive design with three dedicated buttons for line status, a built-in speakerphone, and support for wideband audio. The phone is geared for users who require essential telephony features without the complexity of additional functionalities, making it suitable for front-desk and general office use.

Overall, these models within the Cisco 7900 series exemplify the company's commitment to providing high-quality enterprise communication tools. With a focus on advanced audio technologies, user-friendly interfaces, and adaptability to various business environments, the Cisco 7905G, 7912G, and 7902G cater to the diverse needs of modern organizations. As companies continue to pursue seamless communication, these IP phones remain a valuable asset in their telephony infrastructure, enhancing collaboration and productivity among teams everywhere.
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