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Cisco 7975G Administration Guide - Page 168

The SW Port Configuration option in the Network, Cisco VT Advantage/Unified

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General Troubleshooting Tips Chapter 9 Troubleshooting and Maintenance Table 9-2 Cisco Unified IP Phone Troubleshooting (continued) Summary Gaps in voice calls Loopback condition One-way audio Peer Firmware Sharing fails. Cisco VT Advantage/Unified Video Advantage (CVTA) Explanation Check the AvgJtr and the MaxJtr statistics. A large variance between these statistics might indicate a problem with jitter on the network or periodic high rates of network activity. See the "Call Statistics Screen" section on page 7-12 for information about displaying these statistics. A loopback condition can occur when the following conditions are met: • The SW Port Configuration option in the Network Configuration menu on the phone is set to 10 Half (10-BaseT/half duplex) • The phone receives power from an external power supply • The phone is powered down (the power supply is disconnected) In this case, the switch port on the phone can become disabled and the following message will appear in the switch console log: HALF_DUX_COLLISION_EXCEED_THRESHOLD To resolve this problem, re-enable the port from the switch. When at least one person in a call does not receive audio, IP connectivity between phones is not established. Check the configurations in routers and switches to ensure that IP connectivity is properly configures. If the Peer Firmware Sharing fails, the phone will default to using the TFTP server to download firmware. Access the log messages stored on the remote logging machine to help debug the Peer Firmware Sharing feature. Note These log messages are different than the log messages sent to the phone log. If you are having problems getting CVTA to work, make sure that the PC Port is enabled, and that CDP is on the PC port. See Network Configuration Menu, page 4-5 for more information. 9-12 Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.1 OL-14640-01

Section	Page
Cisco Unified IP Phone 7975G Administration Guide for Cisco Unified Communications Manager 6.1	1
Contents	5
Preface	11
An Overview of the Cisco Unified IP Phone	15
Understanding the Cisco Unified IP Phone 7975G	16
What Networking Protocols Are Used?	18
What Features are Supported on the Cisco Unified IP Phone 7975G?	21
Feature Overview	21
Configuring Telephony Features	22
Configuring Network Parameters Using the Cisco Unified IP Phone	22
Providing Users with Feature Information	23
Understanding Security Features for Cisco Unified IP Phones	23
Overview of Supported Security Features	25
Understanding Security Profiles	27
Identifying Encrypted and Authenticated Phone Calls	27
Establishing and Identifying Secure Conference Calls	28
Call Security Interactions and Restrictions	28
Supporting 802.1X Authentication on Cisco Unified IP Phones	29
Overview	30
Required Network Components	30
Best Practices-Requirements and Recommendations	30
Security Restrictions	31
Overview of Configuring and Installing Cisco Unified IP Phones	31
Configuring Cisco Unified IP Phones in Cisco Unified Communications Manager	32
Checklist for Configuring the Cisco Unified IP Phone 7975G in Cisco Unified Communications Manager	33
Installing Cisco Unified IP Phones	35
Checklist for Installing the Cisco Unified IP Phone 7975G	36
Preparing to Install the Cisco Unified IP Phone on Your Network	39
Understanding Interactions with Other Cisco Unified IP Communications Products	39
Understanding How the Cisco Unified IP Phone Interacts with Cisco Unified Communications Manager	40
Understanding How the Cisco Unified IP Phone Interacts with the VLAN	40
Providing Power to the Phone	41
Power Guidelines	42
Phone Power Consumption and Display Brightness	42
Power Outage	43
Obtaining Additional Information about Power	43
Understanding Phone Configuration Files	43
Understanding the Phone Startup Process	45
Adding Phones to the Cisco Unified Communications Manager Database	46
Adding Phones with Auto-Registration	47
Adding Phones with Auto-Registration and TAPS	48
Adding Phones with Cisco Unified Communications Manager Administration	49
Adding Phones with BAT	49
Using Cisco Unified IP Phones with Different Protocols	50
Converting a New Phone from SCCP to SIP	50
Converting an In-Use Phone from SCCP to SIP	50
Converting an In-Use Phone from SIP to SCCP	51
Deploying a Phone in an SCCP and SIP Environment	51
Determining the MAC Address of a Cisco Unified IP Phone	51
Setting Up the Cisco Unified IP Phone	53
Before You Begin	53
Network Requirements	53
Cisco Unified Communications Manager Configuration	54
Safety	54
Understanding the Cisco Unified IP Phone 7975G Components	55
Network and Access Ports	55
Handset	56
Speakerphone	56
Headset	56
Audio Quality Subjective to the User	57
Connecting a Headset	57
Disabling a Headset	57
Using External Devices with Your Cisco Unified IP Phone	57
Installing the Cisco Unified IP Phone	58
Attaching the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only)	60
Adjusting the Placement of the Cisco Unified IP Phone	61
Adjusting Cisco Unified IP Phone Footstand and Phone Height	61
Securing the Phone with a Cable Lock	61
Mounting the Phone to the Wall	62
Verifying the Phone Startup Process	64
Configuring Startup Network Settings	65
Configuring Security on the Cisco Unified IP Phone	65
Configuring Settings on the Cisco Unified IP Phone	67
Configuration Menus on the Cisco Unified IP Phone 7975G	67
Displaying a Configuration Menu	68
Unlocking and Locking Options	69
Editing Values	69
Overview of Options Configurable from a Phone	70
Network Configuration Menu	71
Device Configuration Menu	76
CallManager Configuration Menu	76
SIP Configuration Menu (SIP Phones Only)	77
SIP General Configuration Menu	78
Line Settings Menu	79
Call Preferences Menu	80
HTTP Configuration Menu	81
Locale Configuration Menu	82
NTP Configuration Menu (SIP Phones Only)	82
UI Configuration Menu	83
Media Configuration Menu	84
Power Save Configuration Menu	87
Ethernet Configuration Menu	88
Security Configuration Menu	89
QoS Configuration Menu	90
Network Configuration	91
Security Configuration Menu	95
CTL File Menu	96
Trust List Menu	97
802.1X Authentication and Status	98
Configuring Features, Templates, Services, and Users	101
Telephony Features Available for the Phone	102
Configuring Corporate and Personal Directories	114
Configuring Corporate Directories	115
Configuring Personal Directory	115
Modifying Phone Button Templates	115
Configuring Softkey Templates	116
Setting Up Services	116
Adding Users to Cisco Unified Communications Manager	117
Managing the User Options Web Pages	117
Giving Users Access to the User Options Web Pages	117
Specifying Options that Appear on the User Options Web Pages	118
Customizing the Cisco Unified IP Phone	119
Customizing and Modifying Configuration Files	119
Creating Custom Phone Rings	120
Ringlist.xml File Format Requirements	120
PCM File Requirements for Custom Ring Types	121
Configuring a Custom Phone Ring	121
Creating Custom Background Images	121
List.xml File Format Requirements	122
PNG File Requirements for Custom Background Images	122
Configuring a Custom Background Image	123
Configuring Wideband Codec	124
Configuring the Idle Display	124
Automatically Disabling the Cisco Unified IP Phone Touchscreen	125
Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone	127
Model Information Screen	128
Status Menu	128
Status Messages Screen	129
Network Statistics Screen	135
Firmware Versions Screen	136
Expansion Module(s) Screen (SCCP Phones Only)	137
Call Statistics Screen	138
Monitoring the Cisco Unified IP Phone Remotely	141
Accessing the Web Page for a Phone	142
Disabling and Enabling Web Page Access	143
Device Information	143
Network Configuration	145
Network Statistics	148
Device Logs	151
Streaming Statistics	151
Troubleshooting and Maintenance	157
Resolving Startup Problems	157
Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process	158
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications Manager	159
Identifying Error Messages	159
Checking Network Connectivity	159
Verifying TFTP Server Settings	159
Verifying IP Addressing and Routing	160
Verifying DNS Settings	160
Verifying Cisco Unified Communications Manager Settings	160
Cisco Unified Communications Manager and TFTP Services Are Not Running	160
Creating a New Configuration File	161
Registering the Phone with Cisco Unified Communications Manager	162
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address	162
Cisco Unified IP Phone Resets Unexpectedly	162
Verifying Physical Connection	163
Identifying Intermittent Network Outages	163
Verifying DHCP Settings	163
Checking Static IP Address Settings	163
Verifying Voice VLAN Configuration	163
Verifying that the Phones Have Not Been Intentionally Reset	164
Eliminating DNS or Other Connectivity Errors	164
Checking Power Connection	164
Troubleshooting Cisco Unified IP Phone Security	165
General Troubleshooting Tips	166
General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914 (SCCP Phones Only)	170
Resetting or Restoring the Cisco Unified IP Phone	170
Performing a Basic Reset	171
Performing a Factory Reset	171
Using the Quality Report Tool	172
Monitoring the Voice Quality of Calls	172
Using Voice Quality Metrics	173
Troubleshooting Tips	174
Where to Go for More Troubleshooting Information	174
Cleaning the Cisco Unified IP Phone	175
Providing Information to Users Via a Website	177
How Users Obtain Support for the Cisco Unified IP Phone	177
How Users Access the Online Help System on the Phone	177
How Users Get Copies of Cisco Unified IP Phone Manuals	178
Accessing Cisco 7900 Series Unified IP Phone eLearning Tutorials (SCCP Phones Only)	178
How Users Subscribe to Services and Configure Phone Features	179
How Users Access a Voice Messaging System	179
How Users Configure Personal Directory Entries	180
Installing and Configuring the Cisco Unified IP Phone Address Book Synchronizer	180
Feature Support by Protocol for the Cisco Unified IP Phone 7975G	183
Supporting International Users	187
Adding Language Overlays to Phone Buttons	187
Installing the Cisco Unified Communications Manager Locale Installer	187
Technical Specifications	189
Physical and Operating Environment Specifications	189
Cable Specifications	190
Network and Access Port Pinouts	190