Cisco Systems OL-19025-01 manual Checking Static IP Address Settings

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Chapter 9 Troubleshooting and Maintenance

Cisco Unified IP Phone Resets Unexpectedly

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 Setup Menu” section on page 4-4for more information.

Verifying the 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 the same switch as the 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 2-2for 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 Applications button on the phone and choosing Administrator Settings > 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:

Procedure

Step 1 Use the Reset Settings menu to reset phone settings to their default values. See the “Resetting or Restoring the Cisco Unified IP Phone” section on page 9-10for details.

Step 2 Modify DHCP and IP settings:

a.Disable DHCP. See the “Network Setup Menu” section on page 4-4for instructions.

b.Assign static IP values to the phone. See the “Network Setup Menu” section on page 4-4for instructions. Use the same default router setting used for other functioning Cisco Unified IP Phones.

c.Assign a TFTP server. See the “Network Setup Menu” section on page 4-4for instructions. Use the same TFTP server used for other functioning Cisco Unified IP Phones.

Step 3 On the Cisco Unified Communications Manager server, verify that the local host files have the correct Cisco Unified Communications Manager server name mapped to the correct IP address.

Cisco Unified IP Phone 6921, 6941, and 6961 Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP)

 

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Contents Text Part Number OL-19025-01 Americas HeadquartersPage Page Page N T E N T S Footstand Configuring Features, Templates, Services, and Users Troubleshooting and Maintenance Network and Access Port Pinouts C-2 OL-19025-01 Audience OverviewOrganization Chapter DescriptionCisco Unified IP Phone 6900 Series Related DocumentationCisco Product Security Overview Document ConventionsConvention Description Boldface fontItalic screen font An Overview of the Cisco Unified IP Phone Understanding the Cisco Unified IP Phone 6921, 6941, Buttons 2shows the main components of the Cisco Unified IP Phone OL-19025-01 OL-19025-01 3shows the main components of the Cisco Unified IP Phone OL-19025-01 What Networking Protocols are Used? Dynamic Host Configuration Protocol chapterNetworking Protocol Purpose Usage Notes Communications Manager System GuideSystem Guide Cisco Unified Communications ManagerRelated Topics Feature Overview Providing Users with Feature Information Configuring Telephony FeaturesRelated Topic Access section on Feature DescriptionOL-19025-01 Purpose For More Information Unified Communications Manager Administration Communications Manager Administration GuideTask Purpose For More Information Communications Manager AdministrationChapter in the Cisco Unified Communications Manager Installing Cisco Unified IP Phones Refer to Cisco Unified IP Phone 6921, 6941, Network Setup IPv4 SetupUser Guide for Cisco Unified Communications Manager Terminology Differences User Guide Administration and System GuidesA P T E R Related Topic Understanding the Phone Startup Process, Network Setup Menu, Providing Power to the Cisco Unified IP PhonePower Outage Power GuidelinesPower Type Guidelines Obtaining Additional Information about Power Understanding Phone Configuration FilesUnderstanding the Phone Startup Process Resolving Startup Problems,Purpose Related Topics Adding Phones to the Cisco UnifiedRequesting the Configuration File Requires MAC Method Address? Adding Phones with Auto-RegistrationAdding Phones with Auto-Registration and Taps Adding Phones with BAT Determining the MAC Address for 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 See the Network and Access Ports section on Installing the Cisco Unified IP PhoneSee the Headset section on page 3-3for supported See the Adding Phones to the Cisco UnifiedCisco Unified IP Phone 6921 and 6941 Cable Connections Cisco Unified IP Phone 6961 Cable Connections Footstand Reducing Power Consumption on the PhoneCisco Unified IP Phone 6921 Cisco Higher Viewing Angle Verifying the Phone Startup Process Mounting the Phone to the WallLower Viewing Angle Hold Mute Speaker Configuring Startup Network SettingsOL-19025-01 Phone Configuration Menus on the Cisco Unified IP PhoneProcedure Displaying a Configuration MenuSelect Admin Settings Editing Values Unlocking and Locking OptionsOption Description To Change Network Setup MenuSelect PC Vlan IPv4 Setup Menu Options Related Topics OL-19025-01 Configuring Features, Templates, Services, and Users Feature Description Configuration Reference Features and Services Guide, Call Features and Services Guide, Cisco CallAdministration Guide, Directory Forward Maximum Hop Count service parameterCisco Unified Communications Communications Manager Features Communications Features and ServicesCodes and Forced Authorization Codes Extension Mobility chapter in the CiscoPoint Configuration chapter in the Cisco Button Template for Personal Address Book or Features and Services GuideSpeed Dials, Manager Feature and Services Guide Administration Guide, Hunt GroupCisco Communications Manager Administration Guide, Message Waiting Features and Services Guide, MaliciousRefer to Cisco Unified Communications Manager System Guide, Cisco UnifiedUnified IP Phone 6921, 6941, and 6961 User Features and Services Guide BargeTemplate Configuration chapter Administration Guide, Phone ButtonFeatures and Services Guide, Quality Report Tool chapterAdministration Guide, Cisco Voice-Mail Administration Guide, Time PeriodPort Configuration chapter System Guide, Time-of-Day RoutingConfiguring Corporate Directories Configuring Corporate and Personal DirectoriesJoin and Direct Transfer Policy Modifying Phone Button Templates Configuring Personal DirectoryClick Save Configuring Softkey Templates DND Supported as aSetting Up Services Managing the User Options Web Pages Giving Users Access to the User Options Web PagesEnter the appropriate search criteria and click Find Click Add SelectedClick Save Selected/Changes Specifying Options that Appear on the User Options Web Pages Configuring the Phone to Support Call Waiting Customizing the Cisco Unified IP Phone Customizing and Modifying Configuration FilesDistinctiveRingList File Format Requirements Creating Custom Phone RingsConfiguring a Custom Phone Ring Configuring the Idle DisplayPCM File Requirements for Custom Ring Types Automatically Disabling the Cisco Unified IP Phone Backlight Field Description OL-19025-01 Model Information Screen, Status Menu, Model Information ScreenStatus Messages Screen Status MenuSelect Status Messages Message Description Possible Explanation and Action Menu section on page 4-4for details Network Setup Menu section onSetup Menu section on page 4-4for details on Network Statistics Screen Select Status Network Statistics Call Statistics Screen Voice Quality Metrics Select Call StatisticsOL-19025-01 Monitoring the Cisco Unified IP Phone Remotely Http//IPaddress Accessing the Web Page for a PhoneDevice Information Disabling and Enabling Web Page AccessChoose Device Phone Cisco Unified IP Phone Network SetupDescription Description Vlan Network StatisticsDevice Logs Streaming Statistics Configuring Settings on the Cisco Unified IP Phone chapter Resolving Startup Problems Troubleshooting and MaintenanceTroubleshooting and Maintenance Resolving Startup Problems Identifying Error Messages Choose Tools Control Center Feature Services Verifying DNS SettingsSymptom Cisco Unified IP Phone Unable to Obtain IP Address Verifying Dhcp Settings Cisco Unified IP Phone Resets UnexpectedlyVerifying the Physical Connection Identifying Intermittent Network OutagesVerifying the Voice Vlan Configuration Checking Static IP Address SettingsVerifying that the Phones Have Not Been Intentionally Reset Eliminating DNS or Other Connectivity ErrorsChecking Power Connection General Troubleshooting TipsSummary Explanation Halfduxcollisionexceedthreshold Performing a Basic Reset Resetting or Restoring the Cisco Unified IP PhoneOperation Performing Explanation Monitoring the Voice Quality of Calls Performing a Factory ResetTroubleshooting Tips Where to Go for More Troubleshooting InformationMetric Change Condition Cleaning the Cisco Unified IP Phone OL-19025-01 Providing Information to Users Via a Website How Users Access a Voice Messaging System Installing the Synchronizer How Users Configure Personal Directory EntriesConfiguring the Synchronizer Support for International Call Logging Supporting International UsersOL-19025-01 Specification Value or Range Physical and Operating Environment SpecificationsNetwork and Access Port Pinouts Cable SpecificationsNetwork Port Connector Access Port ConnectorPin Number Function OL-19025-01 Example User Information for these Procedures Basic Phone Administration StepsAdding a User to Cisco Unified Communications Manager Choose System Ldap Ldap Directory Adding a User From an External Ldap DirectoryClick Perform Full Sync Now Example johndoeProceed to the section Configuring the Phone, page D-4 Configuring the PhoneOL-19025-01 OL-19025-01 Click Device Associations Choose User Management End UserPerforming Final End User Configuration Steps Installing the Wall Mount Kit for Installing the Bracket Figure E-2 Mounting the Wall Bracket Figure E-3 Attaching the Phone Bracket Figure E-4 Preparing the Handset Hook Figure E-5 Attaching the Cables Figure E-6 Attaching the Phone to the Wall Bracket OL-19025-01 ADA Non-Lockable Wall Mount Kit for 6900 Series Cisco Unified IP Phone Non-Lockable Wall MountPackage includes these items ComponentsBefore You Begin Install Non-Lockable Wall Mount Kit for PhoneFigure F-4 Mount the Wall Bracket Figure F-5 Attach Phone Bracket Remove Phone from Non-Lockable Wall Mount Go to in Installing the Bracket, page E-2Figure F-7 Before You BeginFigure F-8 D E IN-2 IN-3 IN-4 Tftp Server IN-6 IN-7 IN-8
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