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

Page 228

Chapter 9 Troubleshooting and Maintenance

Cisco Unified IP Phone Resets Unexpectedly

If you are experiencing problems with the voice network, you should investigate whether an existing problem is simply being exposed.

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 4-7for 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 4-7for 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.

		Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.1 (SIP), Cisco Unified IP Phones

9-10		OL-11524-01
9-10		OL-11524-01

Image 228

Contents Cisco Unified IP Phones 7970G/7971G-GE Page Page Page N T E N T S Products Adding Phones with Cisco Unified CallManager Administration ViiDisabling a Headset ViiiCustomizing and Modifying Configuration Files Configuring a Custom Background Image Troubleshooting and Maintenance Monitoring the Voice Quality of Calls XiiXiii Xiv Overview AudienceOrganization XviCisco Unified CallManager Administration Related DocumentationCisco Unified IP Phones 7970G/7971G-GE XviiTroubleshooting Obtaining DocumentationCisco.com Product Documentation DVDDocumentation Feedback Cisco Product Security OverviewOrdering Documentation XixReporting Security Problems in Cisco Products For emergencies only security-alert@cisco.comProduct Alerts and Field Notices Obtaining Technical AssistanceXxi Cisco Technical Support & Documentation Website XxiiSubmitting a Service Request Definitions of Service Request SeverityXxiii Obtaining Additional Publications and Information XxivDocument Conventions Convention DescriptionBoldface font Italic fontItalic screen font XxviWaarschuwing Belangrijke Veiligheidsinstructies Varoitus Tärkeitä TurvallisuusohjeitaXxvii Warnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaXxviii Aviso Instruções Importantes DE Segurança XxixVarning! Viktiga Säkerhetsanvisningar XxxXxxi GEM Disse Anvisninger XxxiiXxxiii Xxxiv An Overview of the Cisco Unified IP Phone Understanding the Cisco Unified IP Phones 7970G/7971G-GE Cisco Unified IP PhonePage OL-11524-01 What Networking Protocols Are Used? Networking Protocol Purpose Usage NotesUnified CallManager System Guide Authentication on Cisco Unified IP Refer to the SupportingPhones section on page 1-18 for Network Configuration section on Understanding the SIP Protocol Related TopicsFeature Overview Configuring Telephony Features Providing Users with Feature Information Understanding Security Features for Cisco Unified IP Phones Topic ReferenceRefer to Cisco Unified CallManager Security GuideTopic Reference Overview of Supported Security Features Feature Description More information, see the Device Configuration Menu Authentication on Cisco Unified IP Phones section onIdentifying Encrypted and Authenticated Phone Calls ProcedureSelect Security Configuration Understanding Security ProfilesSupporting 802.1X Authentication on Cisco Unified IP Phones Related TopicRequired Network Components OL-11524-01 Security Restrictions OL-11524-01 CallManager Administration Task Purpose For More InformationCallManager System Guide Refer to Cisco Unified See the Configuring Softkey See the Setting Up ServicesTemplates section on Installing Cisco Unified IP Phones See the Adding Users toCisco Unified CallManager Page See the Providing Power See the InstallingSee the Adjusting Placement of the CiscoSettingsNetwork Configuration IP Phone 7970 GuideOL-11524-01 A P T E R OL-11524-01 Telephony Features Available for the Phone, VlanProviding Power to the Phone Power Guidelines Phone Power Consumption and Display BrightnessPower Type Guidelines Brightness Power Outage Obtaining Additional Information about PowerUnderstanding Phone Configuration Files Understanding the Phone Startup Process SIP Dial RulesStep Description Related Topics Unified CallManager Security GuideUnderstanding Files,Adding Phones to the Cisco Unified CallManager Database Requires MAC Method Address?Adding Phones with Auto-Registration Adding Phones with Auto-Registration and Taps Adding Phones with BAT MAC Address of a Cisco Unified IP Phone section onUsing Cisco Unified IP Phones with Different Protocols See the Configuring Startup Network Settings section on Converting a New Phone from Sccp to SIPConverting an In-Use Phone from Sccp to SIP Converting an In-Use Phone from SIP to Sccp Deploying a Phone in an Sccp and SIP EnvironmentDetermining the MAC Address of a Cisco Unified IP Phone Setting Up the Cisco Unified IP Phone Cisco Unified CallManager Configuration Before You BeginNetwork Requirements Safety Setting Up the Cisco Unified IP Phone Before You Begin Network and Access Ports Network and Access Ports, Handset, Speakerphone, Headset,Handset Speakerphone HeadsetAudio Quality Subjective to the User Http//plantronics.comUsing External Devices with Your Cisco Unified IP Phone Installing the Cisco Unified IP Phone Procedure ReferenceSee the Providing Power to See the Headset section onSee the Network and Access Ports section on page 3-5 for130055 Adjusting the Placement of the Cisco Unified IP Phone Adjusting Cisco Unified IP Phone Placement on the DesktopSecuring the Phone with a Cable Lock See -2 belowMounting the Phone to the Wall Before You BeginVerifying the Phone Startup Process Parts Used in Wall Mounting the Cisco Unified IP PhoneOL-11524-01 Configuring Startup Network Settings Settings on the Cisco Unified IP PhoneBefore You Begin From the phone, press the Settings Security Configuration OL-11524-01 Configuring Settings on Cisco Unified IP Phone Related Topics Displaying a Configuration Menu Unlocking and Locking Options Editing Values Overview of Options Configurable from a Phone Category DescriptionNetwork Configuration Menu Values section onOption Description To Change Security Configuration Menu section Refer to Cisco Unified CallManagerOption Description To Change Vlan ID Scroll to the Dhcp Address Option Description To Change PC Vlan Device Configuration Menu CallManager Configuration Menu StateBlank Designation Description Device PoolUnified CallManager Security Guide CallManager Security GuideSIP Configuration Menu SIP General Configuration Menu, Line Settings Menu,Device Device Settings SIP ProfileUsecallmanager Line Settings Menu Call Preferences Menu This option can also be Http Configuration Menu URL Locale Configuration Menu Configuration Menu,UI Configuration Menu NTP Configuration MenuIncoming call on the same line when Media Configuration Menu Administration System EnterpriseParameters Enabled or disabled for the phone. If Whose phone has the Recording Tone Receives. The remote party is the party Power Save Configuration Menu Ethernet Configuration Menu Security Configuration MenuResponses. Disabling the phone’s QoS Configuration Menu Network ConfigurationWAN by storing images locally Security Configuration Menu Call Statistics Screen, Streaming Statistics,CTL File Screen section on List Screen section onCisco Unified CallManager Security See the 802.1X Authentication CTL File ScreenStatus section on Configuration Menu section on Unlocking the CTL FileTrust List Screen 802.1X Authentication and Status Choose Settings Security ConfigurationAuthentication Device Authentication802.1X Authentication Real-Time Status Configuring Features, Templates Services, and Users Telephony Features Available for the Phone Feature Description Configuration ReferenceAdministration Guide Features and Services GuideSystem Guide, Call Pickup CallManager Features System GuideAdministration Guide, Call Cisco Unified CallManager NewChanged Information Guide Release 5.11, Cisco UnifiedText, on the phone screen DND Features and Services Guide section New and Changed InformationAdministration Guide, Music Services Guide, PresenceSystem Guide, Music on CallManager System Guide, CiscoAdministration Guide , Cisco Unified CallManager SystemCreating Custom Phone Rings section onAdministration Guide, Time Service Application DevelopmentSystem Guide, Time-of-Day Refer to the Cisco Unified IP PhoneConfiguring Corporate Directories and Personal Directories Configuring Corporate Directories Configuring Personal DirectoryConfiguring Softkey Templates Modifying Phone Button TemplatesSetting Up Services Adding Users to Cisco Unified CallManager Managing the User Options Web PagesGiving Users Access to the User Options Web Pages User Management End UserCustomizing the Cisco Unified IP Phone Creating Custom Phone Rings Ringlist.xml File Format Requirements Configuring a Custom Phone Ring PCM File Requirements for Custom Ring TypesCreating Custom Background Images List.xml File Format RequirementsPNG File Requirements for Custom Background Images List.xml ExampleConfiguring a Custom Background Image Configuring Wideband Headset Codec Configuring the Idle Display OL-11524-01 Page Field Description Field Description OL-11524-01 A P T E R Model Information Screen CTLSee the Using Cisco Unified IP Status MenuPhones with Different Protocols Status Messages Screen Select Status MessagesCallManager Administration section on Network Configuration Menu sectionMessage Description Possible Explanation and Action Adding Phones with Cisco UnifiedUnified CallManager Administration Guide Settings Security Configuration 802.1X Authentication option on the phoneAuthentication and Status section on Address. See the Network ConfigurationMessage Description Possible Explanation and Action Network Configuration Menu section on Phone. See the Firmware Versions Screen Section on page 7-15 to verify the phoneDevice Phone See the Network Configuration Menu Section on page 4-7 section for detailsMessage Description Possible Explanation and Action Network Statistics Screen Select Network StatisticsPC port is in a link up state and has auto-negotiated Firmware Versions Screen Select Firmware VersionsCall Statistics Screen Select Call StatisticsMOS LQK Monitoring the Voice Quality of Calls section onOL-11524-01 Monitoring the Cisco Unified IP Phone Remotely Accessing the Web Page for a Phone Network Statistics, Device Logs, Streaming Statistics,Http//IPaddress Disabling and Enabling Web Page Access Device Information Choose Device PhoneUDI Network Configuration Network Configuration Description Description Description Network Statistics Ethernet Information Area Items Description Device Logs Streaming Statistics MOS LQK Streaming Statistics Related Topics Page OL-11524-01 Troubleshooting and Maintenance Resolving Startup Problems Troubleshooting and Maintenance Resolving Startup Problems Identifying Error Messages Verifying IP Addressing and Routing Cisco CallManager Serviceability Choose Tools Control CenterCreating a New Configuration File Symptom Cisco Unified IP Phone Unable to Obtain IP Address Cisco Unified IP Phone Resets Unexpectedly Verifying Physical ConnectionIdentifying Intermittent Network Outages Verifying Dhcp Settings Checking Static IP Address SettingsVerifying Voice Vlan Configuration Eliminating DNS or Other Connectivity Errors Verifying that the Phones Have Not Been Intentionally ResetChecking Power Connection Problem Possible Cause802.1X Enabled on Phone but Not Authenticating 802.1X Not Enabled General Troubleshooting Tips Summary ExplanationUnlocking and Locking Options section on page 4-4 for See the Call Statistics Screen section on page 7-16 forPerforming a Basic Reset, Performing a Factory Reset, HalfduxcollisionexceedthresholdPerforming a Basic Reset Operation Performing ExplanationLocking Options section on Unlocking and Locking OptionsPerforming a Factory Reset Using the Quality Report Tool Monitoring the Voice Quality of CallsUsing Voice Quality Metrics Troubleshooting Tips Condition Cleaning the Cisco Unified IP Phone Where to Go for More Troubleshooting InformationWebsite Providing Information to Users Via aHow Users Access the Online Help System on the Phone How Users Obtain Support for the Cisco Unified IP PhoneHow Users Get Copies of Cisco Unified IP Phone Manuals How Users Access a Voice Messaging System Unified CallManager section onHow Users Configure Personal Directory Click Next Configuring the Synchronizer OL-11524-01 P E N D I X B Features Cisco Unified IP PhoneCMC Calling Features Cisco Unified IP Phone 7970G/7971G-GE Cisco IP Phone Service Application Development Notes for Release 4.13 orCisco Ipma User Guide Cisco CallManager Features and Services Cisco CallManager Attendant ConsoleUser Guide Cisco IP Phone Expansion ModuleSupporting International Users Adding Language Overlays to Phone ButtonsInstalling the Cisco Unified CallManager Locale Installer Technical Specifications Specification Value or RangeCable Specifications Network and Access Port PinoutsNetwork Port Connector Access Port ConnectorPin Number Function Numerics IN-1IN-2 IN-3 IN-4 IN-5 IN-6 IN-7 IN-8 IN-9 IN-10 IN-11 IN-12 Vlan IN-13IN-14

Related manuals

Manual 219 pages 44.9 Kb

Manual 20 pages 59.48 Kb

Manual 108 pages 45.99 Kb