Cisco Systems 7971G-GE, 7970G manual Verifying Dhcp Settings, Checking Static IP Address Settings

Page 169

Chapter 9 Troubleshooting and Maintenance

Cisco Unified IP Phone Resets Unexpectedly

Verifying DHCP Settings

Follow this process to help determine if the phone has been properly configured to use DHCP:

1.Verify that you have properly configured the phone to use DHCP. See the “Network Configuration Menu” section on page 4-5for more information.

2.Verify that the DHCP server has been set up properly.

3.Verify the DHCP lease duration. Cisco recommends that you set it to 8 days.

Cisco Unified IP Phones send messages with request type 151 to renew their DHCP address leases. If the DHCP server expects messages with request type 150, the lease will be denied, forcing the phone to restart and request a new IP address from the DHCP server.

Checking Static IP Address Settings

If the phone has been assigned a static IP address, verify that you have entered the correct settings. See the “Network Configuration Menu” section on page 4-5for more information.

Verifying Voice VLAN Configuration

If the Cisco Unified IP Phone appears to reset during heavy network usage (for example, following extensive web surfing on a computer connected to same switch as phone), it is likely that you do not have a voice VLAN configured.

Isolating the phones on a separate auxiliary VLAN increases the quality of the voice traffic. See the “Understanding How the Cisco Unified IP Phone Interacts with the VLAN” section on page 2-3for details.

Verifying that the Phones Have Not Been Intentionally Reset

If you are not the only administrator with access to Cisco Unified Communications Manager, you should verify that no one else has intentionally reset the phones.

You can check whether a Cisco Unified IP Phone received a command from

Cisco Unified Communications Manager to reset by pressing the Settings button on the phone and choosing Status > Network Statistics. If the phone was recently reset one of these messages appears:

•Reset-Reset—Phone closed due to receiving a Reset/Reset from Cisco Unified Communications Manager Administration.

•Reset-Restart—Phone closed due to receiving a Reset/Restart from Cisco Unified Communications Manager Administration.

Eliminating DNS or Other Connectivity Errors

If the phone continues to reset, follow these steps to eliminate DNS or other connectivity errors:

Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0

 

OL-15299-01

9-7

 

 

 

Page 168 Page 170
Image 169
Page 168 Page 170
Contents Text Part Number OL-15299-01 Americas HeadquartersPage Iii N T E N T SSetting Up the Cisco Unified IP Phone Adjusting the Placement of the Cisco Unified IP Phone Configuring Features, Templates, Services, and Users Vii Disabling and Enabling Web Page AccessViii Monitoring the Voice Quality of CallsD E OL-15299-01 Audience OverviewOrganization Cisco Unified IP Phone 7970 Series Related DocumentationXii Cisco Product Security Overview Document ConventionsConvention Description Boldface fontItalic screen font Information you must enter is in boldface screen fontXiv Understanding the Cisco Unified IP Phone 7970 Series An Overview of the Cisco Unified IP PhoneCisco Unified IP Phone What Networking Protocols Are Used? Unified Communications Manager System Networking Protocol Purpose Usage NotesGuide Discovery Protocol white paper Support, see the LLDP-MED and CiscoRtcp RTPRelated Topics Feature Overview Providing Users with Feature Information Configuring Telephony FeaturesTelephony Features Available for the Phone, Related TopicRefer to Cisco Unified Communications Manager Security Topic ReferenceGuide, Troubleshooting chapter Overview of Supported Security FeaturesUnified IP Phone section on page 3-12for more information Feature DescriptionMenu section on Understanding Security ProfilesUnified IP Phones section on page 1-16for more information Related Topic Establishing and Identifying Secure Conference Calls Call Security Interactions and Restrictions Overview Supporting 802.1X Authentication on Cisco Unified IP PhonesBest Practices-Requirements and Recommendations Security RestrictionsOL-15299-01 Purpose For More Information See the Telephony Features Available for the PhoneRefer to Cisco Unified Communications Manager See theModifying Phone Button Templates sectionAdministration Guide, Softkey Template Administration Guide, Directory NumberAdministration Guide Installing Cisco Unified IP PhonesTask Purpose For More Information Refer to the Cisco Unified Communications ManagerSee the Installing the Cisco Unified IP Phone section See the Providing Power to the Phone section onSee the Adjusting the Placement of the Cisco Unified IP Phone section onConfiguration Configuration IPv4 ConfigurationDhcp Refer to Cisco Unified IP Phone 7970 Series GuideOL-15299-01 A P T E R Related Topic Providing Power to the Phone Power Outage, Obtaining Additional Information about Power, Power GuidelinesPower Type Guidelines Power Outage Phone Power Consumption and Display BrightnessMax. Power Phone Model Power Configuration Switch BrightnessObtaining Additional Information about Power Understanding Phone Configuration FilesSee the Resolving Startup Problems section on Obtaining Power from the SwitchUnderstanding the Phone Startup Process Purpose Related TopicsSee the Network Configuration Menu section Configuring VlanSee the Understanding Phone Configuration Requesting the Configuration FileTftp server has configuration files, which define Parameters for connecting to CiscoRequires MAC Method Address? Adding Phones with Auto-RegistrationTaps Adding Phones with Auto-Registration and Taps Adding Phones with BAT Using Cisco Unified IP Phones with Different ProtocolsConverting a New Phone from Sccp to SIP ProcedureConverting an In-Use Phone from Sccp to SIP Converting an In-Use Phone from SIP to SccpDeploying a Phone in an Sccp and SIP Environment Determining the MAC Address of a Cisco Unified IP PhoneNetwork Requirements Before You BeginNetwork and Access Ports Cisco Unified Communications Manager ConfigurationNetwork and Access Ports, Handset, Speakerphone, Headset, Speakerphone HandsetHeadset Audio Quality Subjective to the User See the Network and Access Ports section on Installing the Cisco Unified IP PhoneBefore You Begin See the Headset section on page 3-3for supportedCisco Unified IP Phone 7970 Series Rear Cable Connections Module Attaching the Cisco Unified IP Phone Expansion ModuleAdjusting Cisco Unified IP Phone Footstand and Phone Height Adjusting the Placement of the Cisco Unified IP PhoneSecuring the Phone with a Cable Lock See FigureMounting the Phone to the Wall Parts Used in Wall Mounting the Cisco Unified IP Phone Verifying the Phone Startup ProcessConfiguring Startup Network Settings From the phone, press the Settings Security Configuration Configuring Security on the Cisco Unified IP PhoneRelated Topic OL-15299-01 Configuring Settings on the Cisco Unified IP Phone Displaying a Configuration Menu Editing Values Unlocking and Locking OptionsDhcp settings Dynamic Host Configuration Protocol Dhcp Overview of Options Configurable from a PhonePC Vlan Category Description Network Configuration Menu Option Network Configuration MenuConfiguration Menu section on To Table Option Description To ChangeConfiguring Settings on the Cisco Unified IP Phone IPv4 Configuration Menu Options Unified Communications Manager Security File, see the Security Configuration Menu Section onGuide. For information about unlocking the CTL File, see to the Security Configuration Menu Device Configuration MenuCan change the Tftp Server 2 address File will be downloaded from the new TftpState Unified CM ConfigurationActive Standby BlankUnified Communications Manager Administration Guide SIP Configuration Menu SIP Phones OnlyDesignation Description Window choose System Device PoolDisplaying a Configuration Menu, Device Configuration Menu, Device Settings SIP ProfileDirectory Number Call Preferences Menu SIP Phones OnlyPhone Configuration Http Configuration MenuSpeed Dial LineActivated Locale Configuration MenuConfiguration Menu SIP Phones Only section UI Configuration MenuParameters Gets used see Media Configuration Menu Administration Device Phone PhoneInterface User Preferences Audio Preferences Wideband HeadsetUser Preferences Audio Preferences Wideband Handset Media Configuration MenuIs the party who is on a call with the party whose That the remote party receives. The remote partyUser Preferences Phone Phone Configuration to set thisAudio Preferences Wideband Handset Choose Device Phone PhoneEnterprise Parameters Power Save Configuration MenuSecurity Configuration Menu Ethernet Configuration Menu16describes the options on the Security Configuration menu Network Configuration QoS Configuration MenuDisabled-default Phone Phone ConfigurationCall Statistics Screen, Streaming Statistics, Eliminates the need to manually control firmware Device Phone PhonePhone Advantage/Unified Video Advantage Cvta is connected toLow Switch. Settings includeMIC Security Configuration MenuCisco Unified Communications Manager Security GuideFile installs automatically when the phone See the 802.1X Authentication and StatusCTL File Menu For this phoneTrust List Menu 802.1X Authentication and StatusSection in Cisco Unified Communications Manager Security Guide802.1X Authentication Device Choose Settings Security ConfigurationAuthentication 802.1X Authentication EAP-MD5Softkey OL-15299-01 Telephony Features Available for the Phone Configuring Features, Templates, Services, and UsersFeature Description Configuration Reference Communications Manager Features Features and Services Guide, BargeCommunications Manager Feature Features and Services Guide, CallForward Maximum Hop Count service parameter Administration Guide, DirectorySpecifying Options that Appear on User Options Web Pages,Features and Services Guide, Call Park Administration Guide, Call ParkServices Guide, Monitoring Communications System GuideFeatures and Services Guide, Cisco Administration Guide, Cisco UnifiedAdministration Guide, Client Matter Features and Services Guide, ClientServices Guide, Custom Phone Rings Chapter Individually. Conference features includeSystem Guide Features and Services Guide, Do Not Disturb Features and Services Guide, Immediate Administration Guide, Hunt GroupSee Configuring Softkey Templates Cisco Unified CallManager FeatureUnified IP Phone Guide, Basic Call Refer to Cisco Unified CommunicationsManager Administration Guide, Directory Features and Services Guide, MaliciousAutomatically placed on hold Number Configuration chapter Call Identification chapterFeatures and Services Guide, Music On Administration Guide, Music On HoldFeatures and Services Guide Barge Manager System Guide, SIP Dial RulesAdministration Guide, Modifying Phone Administration Guide, Phone ButtonFeatures and Services Guide, Quality QRTAdministration Guide, Conference Administration Guide, Time Period Administration Guide, Device PoolRefer to the Cisco Unified IP Phone Service Administration Guide, UnderstandingManager Administration Guide Configuring Corporate and Personal DirectoriesCisco VT Advantage Administration Administration Guide, CiscoConfiguring Personal Directory Configuring Corporate DirectoriesModifying Phone Button Templates Address Book SynchronizerChoose Device Device Settings Phone Services Configuring Softkey Templates Adding Users to Cisco Unified Communications Manager Setting Up ServicesManaging the User Options Web Pages Giving Users Access to the User Options Web PagesOL-15299-01 Customizing the Cisco Unified IP Phone Customizing and Modifying Configuration FilesRinglist.xml File Format Requirements Creating Custom Phone RingsCreating Custom Background Images Configuring a Custom Phone RingPCM File Requirements for Custom Ring Types List.xml Example List.xml File Format RequirementsPNG File Requirements for Custom Background Images Configuring a Custom Background ImageConfiguring Wideband Codec Configuring the Idle Display Field Description Field Description OL-15299-01 Model Information Screen, Status Menu, Model Information Screen See the Using Cisco Unified IP Phones withCTL Different Protocols section onStatus Menu Press the Settings buttonStatus Messages Screen Select Status MessagesNetwork Configuration Menu section on Administration section on page 2-12forMessage Description Possible Explanation and Action Cisco Unified Communications ManagerInformation, see the 802.1X Authentication Settings Security ConfigurationAddress. See the Network Configuration Status section on4-5section for details Versions Screen section on page 7-11to verify See the Network Configuration MenuSection on page 4-5section for details Has not provided a DNS server. Check Select Network Statistics Network Statistics ScreenOL-15299-01 Port IPv4 Firmware Versions ScreenSelect Firmware Versions To exit the Firmware Version screen, press the Exit softkey Expansion Modules ScreenSelect Expansion Modules Call Statistics Screen Press the Settings button Select StatusSelect Call Statistics 6explains the items displayed in the Call Statistics screenMOS LQK Voice Quality MetricsPreceding 8-second interval of the voice stream. For more That the Cisco Unified IP Phone usesDescription OL-15299-01 Monitoring the Cisco Unified IP Phone Remotely Accessing the Web Page for a PhoneHttp//IPaddress Device Information Disabling and Enabling Web Page AccessChoose Device Phone UDI Network ConfigurationDescription Description PC Vlan Network Statistics Lldp Streaming Statistics Device LogsCisco Unified IP Phone uses Voice Quality Metrics Related Topics OL-15299-01 Resolving Startup Problems Troubleshooting and MaintenanceIdentifying Error Messages, Checking Network Connectivity, Identifying Error Messages Choose Tools Control Center Network Services Verifying DNS SettingsCreating a New Configuration File Symptom Cisco Unified IP Phone Unable to Obtain IP Address Cisco Unified IP Phone Resets UnexpectedlyVerifying Physical Connection Identifying Intermittent Network OutagesChecking Static IP Address Settings Verifying Dhcp SettingsVerifying Voice Vlan Configuration Verifying that the Phones Have Not Been Intentionally ResetChecking Power Connection Troubleshooting Cisco Unified IP Phone SecurityProblem Possible Cause 802.1X Enabled on Phone but Not Authenticating Summary Explanation General Troubleshooting TipsSee the Call Statistics Screen section on page 7-13 for Options section on page 4-3 for detailsInformation about displaying these statistics Problem Solution To resolve this problem, re-enable the port from the switchHalfduxcollisionexceedthreshold Performing a Basic Reset Resetting or Restoring the Cisco Unified IP PhoneOperation Performing Explanation Performing a Factory Reset Using the Quality Report ToolMonitoring the Voice Quality of Calls Using Voice Quality MetricsMetric Change Condition Troubleshooting TipsCleaning the Cisco Unified IP Phone Where to Go for More Troubleshooting InformationOL-15299-01 Providing Information to Users Via a Website How Users Get Copies of Cisco Unified IP Phone Manuals How Users Access the Online Help System on the PhoneHtml How Users Access a Voice-Messaging SystemInstalling the Synchronizer How Users Configure Personal Directory EntriesPrograms Cisco Systems TabSync Configuring the SynchronizerOL-15299-01 Sccp SIP FeaturesWMI Sccp SIP Tool Cisco Unified Communications Manager Features Cisco Unified IP Phone Service ApplicationServices Guide Development Notes for Release 4.13 or laterOL-15299-01 Adding Language Overlays to Phone Buttons Supporting International UsersSupport for International Call Logging Specification Value or Range Physical and Operating Environment SpecificationsNetwork and Access Port Pinouts Cable SpecificationsNetwork Port Connector Pin Number FunctionAccess Port Connector OL-15299-01 Example User Information for these Procedures Basic Phone Administration StepsAdding a User From an External Ldap Directory Proceed to Configuring the Phone, page E-3Choose System Ldap Ldap Directory Click Perform Full Sync NowProceed to the section Configuring the Phone, page E-3 Configuring the PhoneExample johndoe Example doeOL-15299-01 Page Click Device Associations Choose User Management End UserPerforming Final End User Configuration Steps IN-1 IN-2 See CDPPCM file requirements Daisy chaining 9-10data Vlan Computer telephony integration CTIIN-3 See Dhcp SignalingIN-4 Mlpp DNDIN-5 Codec 729 Adjustment plate Identifying Forced authorization codesIN-6 LLDP-MED See HttpIN-7 MAC Address Operational Vlan ID PC Port Configuration Mobile phone interference Mobile voice accessMessages button Messages URL Message waiting Metrics, voice quality MIC Mobile connectIN-9 CDP Cppdp Dhcp Http Rtcp RTP Sccp SIP TCP Tftp TLS UDPSee Rtcp Real-Time Control ProtocolReal-Time Transport Protocol See RTPLSC MIC Settings button Settings menu accessStreaming Status menu Description IN-11See Srst Survivable Remote Site TelephonyIN-12 See TCP See UDPSee TLS See TftpDocumentation for A-2 Accessing Console Logs Core DumpsProviding required information to A-1 Vlan
Related manuals
Manual 20 pages 59.48 Kb Manual 108 pages 45.99 Kb Manual 275 pages 56 Kb Manual 22 pages 25.32 Kb

7970G, 7971G-GE specifications

The Cisco Systems 7971G-GE is a sophisticated IP phone designed for enterprise communication, offering a range of features that enhance productivity and collaboration. As part of the Cisco Unified Communications portfolio, this phone is known for its impressive technology and reliable performance.

One of the main features of the 7971G-GE is its high-resolution color display. The 5-inch LCD screen provides users with a visually appealing and intuitive interface, allowing for easy navigation through menus and contacts. The phone supports up to six lines, making it ideal for users who require multiple lines for simultaneous calls. Users can effortlessly manage calls with the ability to switch between lines and access important call features like hold, transfer, and conference calling.

In terms of audio quality, the Cisco 7971G-GE is equipped with high-definition voice technology. This feature ensures crystal-clear sound during calls, reducing background noise and enhancing the clarity of conversations. The phone also supports wideband audio codecs, enabling a richer voice experience that is particularly valuable in business environments.

The phone is designed with user convenience in mind. It offers programmable buttons that can be customized to suit individual needs, allowing easy access to frequently used functions or contact lists. Additionally, the presence indicator feature lets users see the availability of their colleagues in real-time, promoting more effective communication and collaboration.

Networking capabilities are another strong point of the Cisco 7971G-GE. The phone supports both Power over Ethernet (PoE) and standard Ethernet connectivity. This enables easy deployment without the need for additional power outlets. Moreover, the device is compatible with various Cisco communication platforms, integrating seamlessly with existing Cisco infrastructure, which is essential for businesses looking to upgrade their communications systems.

Security is a crucial consideration for modern enterprises, and Cisco addresses this with robust encryption features that protect voice and video calls. The phone supports secure signaling and media encryption, ensuring that sensitive conversations remain confidential.

Overall, the Cisco Systems 7971G-GE is a feature-rich IP phone that combines advanced technology with user-friendly design. Its high-definition audio, customizable features, and seamless integration with Cisco networks make it a popular choice for businesses seeking to improve their communication systems. With its reliability and performance, the Cisco 7971G-GE continues to support effective collaboration in an increasingly connected world.
Top Page Image Contents