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Cisco Unified IP Phones use TCP to, the Cisco Unified IP Phone to use

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Chapter 1 An Overview of the Cisco Unified IP Phone What Networking Protocols are Used? Table 1-1 Supported Networking Protocols on the Cisco Unified IP Phone (continued) Networking Protocol Real-Time Control Protocol (RTCP) Skinny Client Control Protocol (SCCP) Session Initiation Protocol (SIP) Transmission Control Protocol (TCP) Transport Layer Security (TLS) Trivial File Transfer Protocol (TFTP) Purpose Usage Notes RTCP works in conjunction with RTP to provide QoS data (such as jitter, latency, and round trip delay) on RTP streams. RTCP is disabled by default, but you can enable it on a per phone basis using Cisco Unified CallManager. For more information, see the "Network Configuration Menu" section on page 4-27. SCCP includes a messaging set that allows communications between call control servers and endpoint clients such as IP Phones. SCCP is proprietary to Cisco Systems. Cisco Unified IP Phones use SCCP for call control. You can configure the Cisco Unified IP Phone to use either SCCP or Session Initiation Protocol (SIP). SIP is an emerging standard for setting up telephone calls, multimedia conferencing, and other types of communications on the Internet. Cisco Unified IP Phones use SCCP for call control. You can configure the Cisco Unified IP Phone to use either SCCP or SIP. TCP is a connection-oriented transport protocol. Cisco Unified IP Phones use TCP to connect to Cisco Unified CallManager and to access XML services. TLS is a standard protocol for securing and authenticating communications. When security is implemented, Cisco Unified IP Phones use the TLS protocol when securely registering with Cisco Unified CallManager. TFTP allows you to transfer files over the network. On the Cisco Unified IP Phone, TFTP enables you to obtain a configuration file specific to the phone type. TFTP requires a TFTP server in your network, which can be automatically identified from the DHCP server. If you want a phone to use a TFTP server other than the one specified by the DHCP server, you must manually assign the IP address of the TFTP server using the Network Configuration menu on the phone. Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager OL-11528-01 1-7

Section	Page
Cisco Unified IP Phone Administration Guide for CiscoUnified CallManager 5.1 (SCCP)	1
Contents	5
Preface	13
Overview	13
Audience	13
Organization	14
Related Documentation	15
Obtaining Documentation	16
Cisco.com	16
Product Documentation DVD	17
Ordering Documentation	17
Documentation Feedback	17
CiscoProduct Security Overview	18
Reporting Security Problems in CiscoProducts	18
Product Alerts and Field Notices	19
Obtaining Technical Assistance	20
CiscoTechnical Support & Documentation Website	20
Submitting a Service Request	21
Definitions of Service Request Severity	22
Obtaining Additional Publications and Information	22
Document Conventions	24
An Overview of the Cisco UnifiedIPPhone	33
Understanding the CiscoUnified IPPhone7961G/7961G-GE and 7941G/7941G-GE	34
What Networking Protocols are Used?	37
What Features are Supported on the CiscoUnified IPPhone7961G/7961G-GE and 7941G/7941G-GE?	40
Feature Overview	41
Configuring Telephony Features	42
Configuring Network Parameters Using the Cisco Unified IP Phone	42
Providing Users with Feature Information	43
Understanding Security Features for Cisco Unified IP Phones	43
Overview of Supported Security Features	45
Understanding Security Profiles	49
Identifying Encrypted and Authenticated Phone Calls	49
Security Restrictions	50
Supporting 802.1X Authentication on Cisco Unified IP Phones	50
Overview of Configuring and Installing Cisco UnifiedIPPhones	53
Configuring Cisco Unified IP Phones in Cisco Unified CallManager	53
Installing Cisco Unified IP Phones	58
Preparing to Install the Cisco Unified IP Phone on Your Network	61
Understanding Interactions with Other Cisco UnifiedIPTelephony Products	62
Understanding How the Cisco UnifiedIPPhone Interacts with Cisco UnifiedCallManager	62
Understanding How the Cisco Unified IP Phone Interacts with the VLAN	63
Providing Power to the Cisco Unified IP Phone	64
Power Guidelines	65
Power Outage	67
Obtaining Additional Information about Power	68
Understanding Phone Configuration Files	68
Understanding the Phone Startup Process	69
Adding Phones to the Cisco UnifiedCallManager Database	72
Adding Phones with Auto-Registration	73
Adding Phones with Auto-Registration and TAPS	74
Adding Phones with Cisco Unified CallManager Administration	75
Adding Phones with BAT	76
Using Cisco Unified IP Phones with Different Protocols	77
Converting a New Phone from SCCP to SIP	77
Converting an In-Use Phone from SCCP to SIP	78
Converting an In-Use Phone from SIP to SCCP	78
Deploying a Phone in an SCCP and SIP Environment	79
Determining the MAC Address for a Cisco Unified IP Phone	79
Setting Up the Cisco Unified IP Phone	81
Before You Begin	82
Network Requirements	82
Cisco UnifiedCallManager Configuration	82
Safety	83
Understanding the CiscoUnified IPPhone7961G/7961G-GE and 7941G/7941G-GE Components	85
Network and Access Ports	85
Handset	86
Speakerphone	86
Headset	86
Installing the Cisco Unified IP Phone	89
Attaching the Cisco Unified IP Phone Expansion Module 7914	92
Adjusting the Placement of the Cisco Unified IP Phone	94
Adjusting Cisco Unified IP Phone Placement on the Desktop	94
Securing the Phone with a Cable Lock	94
Mounting the Phone to the Wall	95
Verifying the Phone Startup Process	97
Configuring Startup Network Settings	99
Configuring Security on the Cisco Unified IP Phone	99
Configuring Settings on the Cisco UnifiedIPPhone	103
Configuration Menus on the Cisco UnifiedIPPhone	103
Displaying a Configuration Menu	104
Unlocking and Locking Options	106
Editing Values	106
Overview of Options Configurable from a Phone	107
Network Configuration Menu	109
Device Configuration Menu	117
CallManager Configuration Menu	117
HTTP Configuration Menu	119
Locale Configuration Menu	120
UI Configuration Menu	121
Media Configuration Menu	123
Ethernet Configuration Menu	126
Security Configuration Menu	127
QoS Configuration Menu	129
Network Configuration Menu	129
Security Configuration Menu	131
CTL File Screen	133
Trust List Screen	135
802.1X Authentication and Status	136
Configuring Features, Templates, Services, and Users	139
Telephony Features Available for the Cisco UnifiedIPPhone	140
Configuring Corporate and Personal Directories	154
Configuring Corporate Directories	154
Configuring Personal Directory	155
Modifying Phone Button Templates	155
Configuring Softkey Templates	156
Setting Up Services	156
Adding Users to Cisco UnifiedCallManager	157
Managing the User Options Web Pages	158
Giving Users Access to the User Options Web Pages	158
Specifying Options that Appear on the User Options Web Pages	158
Customizing the Cisco UnifiedIPPhone	161
Customizing and Modifying Configuration Files	161
Creating Custom Phone Rings	162
Ringlist.xml File Format Requirements	162
PCM File Requirements for Custom Ring Types	163
Configuring a Custom Phone Ring	164
Creating Custom Background Images	165
List.xml File Format Requirements	165
PNG File Requirements for Custom Background Images	166
Configuring a Background Image	167
Configuring Wideband Headset Codec	168
Viewing Model Information, Status, and Statistics on the Cisco UnifiedIPPhone	171
Model Information Screen	172
Status Menu	173
Status Messages Screen	174
Network Statistics Screen	183
Firmware Versions Screen	185
Expansion Module Status Screen	186
Call Statistics Screen	187
Monitoring the Cisco UnifiedIPPhone Remotely	191
Accessing the Web Page for a Phone	192
Disabling and Enabling Web Page Access	193
Device Information	194
Network Configuration	196
Network Statistics	200
Device Logs	203
Streaming Statistics	203
Troubleshooting and Maintenance	207
Resolving Startup Problems	208
Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process	208
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco UnifiedCallManager	209
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address	214
Cisco Unified IP Phone Resets Unexpectedly	214
Verifying the Physical Connection	215
Identifying Intermittent Network Outages	215
Verifying DHCP Settings	215
Checking Static IP Address Settings	216
Verifying the Voice VLAN Configuration	216
Verifying that the Phones Have Not Been Intentionally Reset	216
Eliminating DNS or Other Connectivity Errors	217
Troubleshooting Cisco Unified IP Phone Security	218
General Troubleshooting Tips	220
General Troubleshooting Tips for the Cisco UnifiedIPPhone Expansion Module 7914	223
Resetting or Restoring the Cisco UnifiedIPPhone	223
Performing a Basic Reset	224
Performing a Factory Reset	225
Using the Quality Report Tool	227
Monitoring the Voice Quality of Calls	227
Using Voice Quality Metrics	228
Troubleshooting Tips	229
Where to Go for More Troubleshooting Information	231
Cleaning the Cisco UnifiedIPPhone	231
Providing Information to Users Via a Website	233
How Users Obtain Support for the Cisco Unified IP Phone	234
Giving Users Access to the User Options Web Pages	234
How Users Access the Online Help System on the Cisco Unified IP Phone	234
How Users Get Copies of Cisco Unified IP Phone Manuals	235
How Users Subscribe to Services and Configure Phone Features	236
How Users Access a Voice Messaging System	236
How Users Configure Personal Directory Entries	237
Installing and Configuring the Cisco Unified IP Phone Address Book Synchronizer	237
Supporting International Users	241
Adding Language Overlays to Phone Buttons	241
Installing the Cisco Unified CallManager Locale Installer	242
Technical Specifications	243
Physical and Operating Environment Specifications	243
Cable Specifications	244
Network and Access Port Pinouts	244

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1-7

Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager

OL-11528-01

Chapter 1

An Overview of the Cisco Unified IP Phone

What Networking Protocols are Used?

Real-Time Control

Protocol (RTCP)

RTCP works in conjunction with

RTP to provide QoS data (such as

jitter, latency, and round trip delay)

on RTP streams.

RTCP is disabled by default, but you

can enable it on a per phone basis

using Cisco Unified CallManager.

For more information, see the

“Network Configuration Menu”

section on page 4-27

Skinny Client Control

Protocol (SCCP)

SCCP includes a messaging set that

allows communications between call

control servers and endpoint clients

such as IP Phones. SCCP is

proprietary to Cisco Systems.

Cisco Unified IP Phones use SCCP

for call control. You can configure

the Cisco Unified IP Phone to use

either SCCP or Session Initiation

Protocol (SIP).

Session Initiation

Protocol (SIP)

SIP is an emerging standard for

setting up telephone calls,

multimedia conferencing, and other

types of communications on the

Internet.

Cisco Unified IP Phones use SCCP

for call control. You can configure

the Cisco Unified IP Phone to use

either SCCP or SIP.

Transmission Control

Protocol (TCP)

TCP is a connection-oriented

transport protocol.

Cisco Unified IP Phones use TCP to

connect to Cisco

Unified CallManager and to access

XML services.

Transport Layer

Security (TLS)

TLS is a standard protocol for

securing and authenticating

communications.

When security is implemented, Cisco

Unified IP Phones use the TLS

protocol when securely registering

with Cisco Unified CallManager.

Trivial File Transfer

Protocol (TFTP)

TFTP allows you to transfer files

over the network.

On the Cisco Unified IP Phone,

TFTP enables you to obtain a

configuration file specific to the

phone type.

TFTP requires a TFTP server in your

network, which can be automatically

identified from the DHCP server. If

you want a phone to use a TFTP

server other than the one specified by

the DHCP server, you must manually

assign the IP address of the TFTP

server using the Network

Configuration menu on the phone.

Table 1-1

Supported Networking Protocols on the Cisco Unified IP Phone (continued)

Networking Protocol

Purpose

Usage Notes