Cleaning the Cisco Unified IP Phone | Cisco Systems 8945, 8941

Chapter

Where to Go for More Troubleshooting Information

•G.728/iLBC: 3.9 MOS LQK

•G729A/AB: 3.7 MOS LQK

Note	• Cisco Voice Transmission Quality (CVTQ) does not support wideband (7 kHz) speech codecs,
	because ITU has not defined the extension of the technique to wideband. Therefore, MOS LQK
	scores that correspond to G.711 performance are reported for G.722 calls to allow basic quality
	monitoring, rather than not reporting an MOS score.
	• Reporting G.711-scale MOS scores for wideband calls through the use of CVTQ allows
	basic-quality classifications to be indicated as good/normal or bad/abnormal. Calls with high scores
	(approximately 4.5) indicate high quality or a low packet loss, and lower scores (approximately 3.5)
	indicate low quality or a high packet loss.
	• Unlike MOS, the conceal ratio and concealed seconds metrics remain valid and useful for both
	wideband and narrowband calls.

	A conceal ratio of zero indicates that the IP network is delivering frames and packets on time with
	no loss.

Where to Go for More Troubleshooting Information

If you have additional questions about troubleshooting the Cisco Unified IP Phones, several Cisco.com web sites can provide you with more tips. Choose from the sites available for your access level.

•Cisco Unified IP Phone Troubleshooting Resources:

http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_troubleshoot_and_ alerts.html

•Cisco Products and Services (Technical Support and Documentation): http://www.cisco.com/en/US/products/ps10451/tsd_products_support_series_home.html

Cleaning the Cisco Unified IP Phone

To clean your Cisco Unified IP phone, use only a dry soft cloth to gently wipe the phone and the LCD screen. Do not apply liquids or powders directly on the phone. As with all non-weather-proof electronics, liquids and powders can damage the components and cause failures.

		Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

	OL-20851-01			9-15
	OL-20851-01			9-15

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Cisco Systems 8945, 8941 manual Where to Go for More Troubleshooting Information, Cleaning the Cisco Unified IP Phone

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 Organization Cisco Unified Communications Manager Business Edition Cisco Unified Communications Manager AdministrationRelated Documentation Cisco Unified IP Phone 8900 Series Boldface font Document ConventionsCisco Product Security Overview Convention Description Important 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 CDP Nologieswhitepaper0900aecd804cd46d.shtml See the LLDP-MED and Cisco Discovery ProtocolSIP Related Topics Communications Manager Security GuideChapter in the Cisco Unified Communications Manager System Guide Configuring Telephony Features Feature OverviewRelated Topic Providing Users with Feature Information Understanding Security Features for Cisco Unified IP Phones Topic Reference Refer to the Troubleshooting Guide for Cisco UnifiedCommunications Manager Feature Description Overview of Supported Security Features Security Profiles section on page 1-13for more information Access section on Unified IP Phones section on page 1-16for more information Configuration Menu section onUnderstanding Security Profiles Identifying Encrypted Phone Calls Establishing and Identifying Secure Audio Conference Calls Initiator’s Phone Feature UsedResults of Action Overview Supporting 802.1X Authentication on Cisco Unified IP Phones Security Restrictions Configuring Cisco Unified IP Phones in Cisco Unified CM Purpose For More Information Communications Manager Administration Guide, Cisco Communications Manager Administration GuideCisco Communications Manager Task Purpose For More Information Communications Manager Administration Guide, EndUnified Communications Manager 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 section Guide for Cisco Unified Communications Manager Refer to Cisco Unified IP Phone 8941 and 8945 User Terminology Differences User Guide Administration and System Guides A P T E R Related Topic Understanding the Phone Startup Process, Network Setup Menu, Providing Power to the Cisco Unified IP Phone Power Outage Power GuidelinesPower Type Guidelines Obtaining Additional Information about Power Understanding Phone Configuration Files Adding Phones to the Cisco Unified CM Database Resolving Startup Problems,Understanding the Phone Startup Process Purpose Related Topics Refer 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 Administration Determining the MAC Address for a Cisco Unified IP Phone OL-20851-01 Network Requirements Before You Begin Network and Access Ports Cisco Unified Communications Manager ConfigurationNetwork and Access Ports, Handset, Speakerphone, Headset, Speakerphone HandsetHeadset 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 supported Cisco Unified IP Phone 8941 and 8945 Cable Connections Footstand Reducing Power Consumption on the Phone Chapter Footstand Higher Viewing Angle Lower Viewing Angle Verifying the Phone Startup ProcessHold Mute Speaker Configuring Security on the Cisco Unified IP Phone Configuring Startup Network SettingsBefore You Begin Procedure Configuration Menus on the Cisco Unified IP Phone Configuring Settings on the Cisco Unified IP Phone Select Administrator Settings Displaying a Configuration MenuUnlocking and Locking Options, Editing Values, Unlocking and Locking Options Network Setup Menu, IPv4 Setup Menu Options,Editing Values Option Description To Change Network Setup MenuSelect PC Vlan ConfigurationDevice Phone Phone IPv4 Setup Menu Options Related Topics Trust List Menu Security Configuration Menu802.1X Authentication and Status Device Phone Phone Configuration Settings Security Setup Choose Applications AdministratorSettings Security Config Authentication Device Authentication OL-20851-01 Configuring Features, Templates, Services, and Users Choose System Service Parameter and select Feature Description Configuration ReferenceSet Builtin Bridge Enable to On Configuration Device Device Settings Configuration System Enterprise PhoneCommon Phone Profile Forward Maximum Hop Count service parameter Features and Services Guide, Cisco CallFeatures and Services Guide, Call Display Administration Guide, Directory Number Park Services Guide, Call Park and Directed CallServices Guide, Monitoring and Recording Understanding Directory Numbers Numbers System Guide, Understanding Directory CMC Unified Communications Manager FeaturesServices Guide Services Guide, Cisco Web Dialer Services Guide, Do Not Disturb Services Guide, Immediate Divert Manager Features and Services Guide, Hold Feature, see the Cisco Unified CommunicationsAdministration Guide, Hunt Group Manager System Guide, Cisco Unified IP Communications Manager FeatureServices Guide, Intercom Refer to Cisco Unified Communications Administration Guide, Message Waiting Features and Services Guide, MaliciousServices Guide, Music On Hold Unified IP Phone 8941 and 8945 User Guide Features and Services Guide BargeAdministration Guide, Phone Button Features and Services Guide, Quality Creating Custom Phone Rings section Overview of Supported Security FeaturesAdministration Guide, Conference Bridge Configuration Services Administration Guide, Time Period Join and Direct Transfer Policy Bridge Configuration chapterAdministration Guide, Cisco Voice-Mail Port Configuration Configuring Corporate Directories Configuring Corporate and Personal DirectoriesConfiguring Personal Directory Synchronizer Modifying Phone Button Templates For PAB, enter the following URL Supported as a Configuring Softkey TemplatesDND Setting Up Services Adding Users to Cisco Unified Communications Manager Managing the User Options Web Pages Giving Users Access to the User Options Web PagesClick Add Selected Enter the appropriate search criteria and click Find Click Device AssociationClick Save Selected/Changes Chapter Managing the User Options Web Pages Chapter Managing the User Options Web Pages Customizing the Cisco Unified IP Phone Customizing and Modifying Configuration Files DistinctiveRingList File Format Requirements Creating Custom Phone Rings PCM File Requirements for Custom Ring Types Configuring a Custom Phone Ring Configuring the Idle Display Field Description OL-20851-01 Model Information Screen, Status Menu, Model Information Screen Status Messages Screen Status MenuSelect Status Messages 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 section Menu section on page 4-4for details Network Setup Menu section on Setup Menu section on page 4-4for details on Select Status Network Statistics Network Statistics Screen SET Dhcp Coldboot Dhcp DisabledDhcp Reboot Dhcp Waiting Coldboot Timeout Select Call Statistics Call Statistics Screen MOS LQK Voice Quality Metrics Select Administrator Settings Select Security Setup Security Configuration Monitoring the Cisco Unified IP Phone Remotely Http//IPaddress Accessing the Web Page for a Phone Device Information Disabling and Enabling Web Page AccessChoose Device Phone UDI Network Setup Description Description Network Statistics Lldp Streaming Statistics Device Logs Stream Streaming Statistics Configuring Settings on the Cisco Unified IP Phone chapter Resolving Startup Problems Troubleshooting and Maintenance Chapter Resolving Startup Problems Identifying Error Messages Choose Tools Control Center Feature Services Verifying DNS Settings Symptom Cisco Unified IP Phone Unable to Obtain IP Address Identifying Intermittent Network Outages Cisco Unified IP Phone Resets UnexpectedlyVerifying Dhcp Settings Verifying the Physical Connection Eliminating DNS or Other Connectivity Errors Checking Static IP Address SettingsVerifying the Voice Vlan Configuration Verifying that the Phones Have Not Been Intentionally Reset Checking Power Connection Troubleshooting Cisco Unified IP Phone SecurityProblem Possible Cause General Troubleshooting Tips Locking Options section on page 4-3 for details Summary Explanation Halfduxcollisionexceedthreshold Operation Performing Explanation Resetting or Restoring the Cisco Unified IP PhonePerforming a Basic Reset Performing a Factory Reset Monitoring the Voice Quality of Calls Metric Change Condition Troubleshooting Tips Cleaning the Cisco Unified IP Phone Where to Go for More Troubleshooting Information Chapter 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 Entries Programs Cisco Systems TabSync Configuring the Synchronizer Support for International Call Logging Installing the Cisco Unified CM Locale Installer OL-20851-01 Specification Value or Range Physical and Operating Environment Specifications Pin Number Function Cable SpecificationsNetwork and Access Port Pinouts Network Port Connector Access Port Connector OL-20851-01 Example User Information for these Procedures Basic Phone Administration Steps Click Perform Full Sync Now Adding a User to Cisco Unified CMAdding a User From an External Ldap Directory Choose System Ldap Ldap Directory Proceed to the section Configuring the Phone, page D-3 Configuring the PhoneExample doe Appendix Configuring the Phone Appendix Configuring the Phone Choose User Management End User Performing Final End User Configuration StepsClick Device Associations Sccp SIP Protocol Features Appendix EFT Draft Cisco Confidential Tool Numerics IN-2 IN-3 IN-4 IN-5 LLDP-MED Cast CDP Dhcp Http Rtcp RTP Sccp SIP Srtp TCP Tftp TLS UDP MIC IN-7 IN-8 Srst Srtp IN-9 Vlan