Cisco Systems 8945 Checking Static IP Address Settings, Verifying the Voice Vlan Configuration

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Chapter

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 9-12for 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 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

 

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Contents Text Part Number OL-20851-01 Americas HeadquartersPage N T E N T S Power Outage 802.1X Authentication and Status Troubleshooting and Maintenance Cable Specifications C-2 Network and Access Port Pinouts C-2 Viii Chapter Description OverviewAudience OrganizationCisco Unified Communications Manager Business Edition Cisco Unified Communications Manager AdministrationRelated Documentation Cisco Unified IP Phone 8900 SeriesBoldface font Document ConventionsCisco Product Security Overview Convention DescriptionImportant Safety Instructions An Overview of the Cisco Unified IP Phone Understanding the Cisco Unified IP Phones 8941 Features on the Cisco Unified IP Phone 8941 Networking Protocol Purpose Usage Notes What Networking Protocols are Used?Dhcp Dynamic Host Configuration Protocol chapterAuthentication on Cisco Unified IP Phones section CDPSIP See the LLDP-MED and Cisco Discovery ProtocolNologieswhitepaper0900aecd804cd46d.shtml Related Topics Communications Manager Security GuideChapter in the Cisco Unified Communications Manager System GuideRelated Topic Feature OverviewConfiguring Telephony Features Providing Users with Feature Information Understanding Security Features for Cisco Unified IP PhonesCommunications Manager Refer to the Troubleshooting Guide for Cisco UnifiedTopic Reference Feature Description Overview of Supported Security FeaturesSecurity Profiles section on page 1-13for more information Access section onUnified IP Phones section on page 1-16for more information Configuration Menu section onUnderstanding Security Profiles Identifying Encrypted Phone CallsEstablishing and Identifying Secure Audio Conference Calls Results of Action Feature UsedInitiator’s Phone Overview Supporting 802.1X Authentication on Cisco Unified IP PhonesSecurity Restrictions Configuring Cisco Unified IP Phones in Cisco Unified CM Purpose For More Information Cisco Communications Manager Communications Manager Administration GuideCommunications Manager Administration Guide, Cisco Unified Communications Manager Communications Manager Administration Guide, EndTask Purpose For More Information See the Footstand section on Installing Cisco Unified IP PhonesSee the Providing Power to the Cisco Unified IP Phone See the Installing the Cisco Unified IP Phone sectionGuide for Cisco Unified Communications Manager Refer to Cisco Unified IP Phone 8941 and 8945 UserTerminology 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 Type Guidelines Power GuidelinesPower Outage Obtaining Additional Information about Power Understanding Phone Configuration FilesAdding Phones to the Cisco Unified CM Database Resolving Startup Problems,Understanding the Phone Startup Process Purpose Related TopicsRefer to the Cisco Unified Communications Manager Taps Adding Phones to the Cisco Unified CM DatabaseAdding Phones with Auto-Registration Requires MAC Method Address?Adding Phones with Auto-Registration and Taps Adding Phones with BAT Adding Phones with Cisco Unified CM AdministrationDetermining the MAC Address for a Cisco Unified IP Phone OL-20851-01 Network Requirements Before You BeginNetwork and Access Ports, Handset, Speakerphone, Headset, Cisco Unified Communications Manager ConfigurationNetwork and Access Ports Headset HandsetSpeakerphone Audio Quality Subjective to the User See the Adding Phones to the Cisco Unified CM Installing the Cisco Unified IP PhoneSee the Network and Access Ports section on See the Headset section on page 3-3for supportedCisco Unified IP Phone 8941 and 8945 Cable Connections Footstand Reducing Power Consumption on the PhoneChapter Footstand Higher Viewing Angle Hold Mute Speaker Verifying the Phone Startup ProcessLower Viewing Angle Before You Begin Configuring Startup Network SettingsConfiguring Security on the Cisco Unified IP Phone Procedure Configuration Menus on the Cisco Unified IP Phone Configuring Settings on the Cisco Unified IP PhoneUnlocking and Locking Options, Editing Values, Displaying a Configuration MenuSelect Administrator Settings Editing Values Network Setup Menu, IPv4 Setup Menu Options,Unlocking and Locking Options Select Network Setup MenuOption Description To Change Device Phone Phone ConfigurationPC Vlan IPv4 Setup Menu Options Related Topics Trust List Menu Security Configuration Menu802.1X Authentication and Status Device Phone Phone ConfigurationSettings Security Setup Choose Applications AdministratorSettings Security Config Authentication Device AuthenticationOL-20851-01 Configuring Features, Templates, Services, and Users Set Builtin Bridge Enable to On Feature Description Configuration ReferenceChoose System Service Parameter and select Common Phone Profile Configuration System Enterprise PhoneConfiguration Device Device Settings Forward Maximum Hop Count service parameter Features and Services Guide, Cisco CallFeatures and Services Guide, Call Display Administration Guide, Directory NumberPark Services Guide, Call Park and Directed CallServices Guide, Monitoring and Recording Understanding Directory NumbersNumbers System Guide, Understanding DirectoryCMC Unified Communications Manager FeaturesServices Guide Services Guide, Cisco Web DialerServices Guide, Do Not Disturb Services Guide, Immediate DivertAdministration Guide, Hunt Group Feature, see the Cisco Unified CommunicationsManager Features and Services Guide, Hold Manager System Guide, Cisco Unified IP Communications Manager FeatureServices Guide, Intercom Refer to Cisco Unified CommunicationsServices Guide, Music On Hold Features and Services Guide, MaliciousAdministration Guide, Message Waiting Unified IP Phone 8941 and 8945 User Guide Features and Services Guide BargeAdministration Guide, Phone Button Features and Services Guide, QualityCreating Custom Phone Rings section Overview of Supported Security FeaturesAdministration Guide, Conference Bridge ConfigurationServices Administration Guide, Time Period Join and Direct Transfer Policy Bridge Configuration chapterAdministration Guide, Cisco Voice-Mail Port ConfigurationConfiguring Personal Directory Configuring Corporate and Personal DirectoriesConfiguring Corporate Directories Synchronizer Modifying Phone Button TemplatesFor PAB, enter the following URL DND Configuring Softkey TemplatesSupported as a Setting Up Services Adding Users to Cisco Unified Communications Manager Click Add Selected Giving Users Access to the User Options Web PagesManaging the User Options Web Pages Click Save Selected/Changes Click Device AssociationEnter the appropriate search criteria and click Find Chapter Managing the User Options Web Pages Chapter Managing the User Options Web Pages Customizing the Cisco Unified IP Phone Customizing and Modifying Configuration FilesDistinctiveRingList File Format Requirements Creating Custom Phone RingsPCM File Requirements for Custom Ring Types Configuring a Custom Phone RingConfiguring the Idle Display Field Description OL-20851-01 Model Information Screen, Status Menu, Model Information ScreenSelect Status Messages Status MenuStatus Messages Screen Message Description Possible Explanation and Action Phones with Cisco Unified CM AdministrationNetwork Setup Menu section on page 4-4for Address. See the Network Setup Menu sectionMenu section on page 4-4for details Network Setup Menu section onSetup Menu section on page 4-4for details on Select Status Network Statistics Network Statistics ScreenSET Dhcp Coldboot Dhcp DisabledDhcp Reboot Dhcp Waiting Coldboot TimeoutSelect Call Statistics Call Statistics ScreenMOS LQK Voice Quality MetricsSelect Administrator Settings Select Security Setup Security ConfigurationMonitoring the Cisco Unified IP Phone Remotely Http//IPaddress Accessing the Web Page for a PhoneChoose Device Phone Disabling and Enabling Web Page AccessDevice Information UDI Network SetupDescription Description Network Statistics Lldp Streaming Statistics Device LogsStream Streaming Statistics Configuring Settings on the Cisco Unified IP Phone chapter Resolving Startup Problems Troubleshooting and MaintenanceChapter Resolving Startup Problems Identifying Error Messages Choose Tools Control Center Feature Services Verifying DNS SettingsSymptom Cisco Unified IP Phone Unable to Obtain IP Address Identifying Intermittent Network Outages Cisco Unified IP Phone Resets UnexpectedlyVerifying Dhcp Settings Verifying the Physical ConnectionEliminating DNS or Other Connectivity Errors Checking Static IP Address SettingsVerifying the Voice Vlan Configuration Verifying that the Phones Have Not Been Intentionally ResetProblem Possible Cause Troubleshooting Cisco Unified IP Phone SecurityChecking Power Connection General Troubleshooting Tips Locking Options section on page 4-3 for details Summary ExplanationHalfduxcollisionexceedthreshold Operation Performing Explanation Resetting or Restoring the Cisco Unified IP PhonePerforming a Basic Reset Performing a Factory ResetMonitoring the Voice Quality of Calls Metric Change Condition Troubleshooting TipsCleaning the Cisco Unified IP Phone Where to Go for More Troubleshooting InformationChapter Cleaning the Cisco Unified IP Phone Providing Information to Users Via a Website How Users Access a Voice Messaging System Installing the Synchronizer How Users Configure Personal Directory EntriesPrograms Cisco Systems TabSync Configuring the SynchronizerSupport for International Call Logging Installing the Cisco Unified CM Locale InstallerOL-20851-01 Specification Value or Range Physical and Operating Environment SpecificationsPin Number Function Cable SpecificationsNetwork and Access Port Pinouts Network Port ConnectorAccess Port Connector OL-20851-01 Example User Information for these Procedures Basic Phone Administration StepsClick Perform Full Sync Now Adding a User to Cisco Unified CMAdding a User From an External Ldap Directory Choose System Ldap Ldap DirectoryExample doe Configuring the PhoneProceed to the section Configuring the Phone, page D-3 Appendix Configuring the Phone Appendix Configuring the Phone Click Device Associations Performing Final End User Configuration StepsChoose User Management End User Sccp SIP Protocol FeaturesAppendix EFT Draft Cisco Confidential Tool Numerics IN-2 IN-3 IN-4 IN-5 LLDP-MEDCast CDP Dhcp Http Rtcp RTP Sccp SIP Srtp TCP Tftp TLS UDP MICIN-7 IN-8 Srst SrtpIN-9 Vlan
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