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What Networking Protocols are Used - ip phone manual

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Chapter 1 An Overview of the Cisco Unified IP Phone What Networking Protocols are Used? What Networking Protocols are Used? Cisco Unified IP Phones support several industry-standard and Cisco networking protocols required for voice communication. Table 1-1 provides an overview of the networking protocols that the Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE support. Table 1-1 Supported Networking Protocols on the Cisco Unified IP Phone Networking Protocol Bootstrap Protocol (BootP) Cisco Discovery Protocol (CDP) Dynamic Host Configuration Protocol (DHCP) Purpose Usage Notes BootP enables a network device such as the Cisco Unified IP Phone to discover certain startup information, such as its IP address. If you are using BootP to assign IP addresses to the Cisco Unified IP Phone, the BOOTP Server option shows "Yes" in the network configuration settings on the phone. CDP is a device-discovery protocol that runs on all Cisco-manufactured equipment. Using CDP, a device can advertise its existence to other devices and receive information about other devices in the network. The Cisco Unified IP Phone uses CDP to communicate information such as auxiliary VLAN ID, per port power management details, and Quality of Service (QoS) configuration information with the Cisco Catalyst switch. DHCP dynamically allocates and assigns an IP address to network devices. DHCP enables you to connect an IP phone into the network and have the phone become operational without you needing to manually assign an IP address or to configure additional network parameters. DHCP is enabled by default. If disabled, you must manually configure the IP address, subnet mask, gateway, and a TFTP server on each phone locally. Cisco recommends that you use DHCP custom option 150. With this method, you configure the TFTP server IP address as the option value. For additional supported DCHP configurations, refer to Cisco Unified CallManager System Guide. Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager OL-11528-01 1-5

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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1-5

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?

Cisco Unified IP Phones support several industry-standard and Cisco networking

protocols required for voice communication.

Table 1-1

provides an overview of

the networking protocols that the Cisco Unified IP Phone 7961G/7961G-GE and

7941G/7941G-GE support.

Table 1-1

Supported Networking Protocols on the Cisco Unified IP Phone

Networking Protocol

Purpose

Usage Notes

Bootstrap Protocol

(BootP)

BootP enables a network device such

as the Cisco Unified IP Phone to

discover certain startup information,

such as its IP address.

If you are using BootP to assign IP

addresses to the Cisco

Unified IP Phone, the BOOTP

Server option shows “Yes” in the

network configuration settings on the

phone.

Cisco Discovery

Protocol (CDP)

CDP is a device-discovery protocol

that runs on all Cisco-manufactured

equipment.

Using CDP, a device can advertise its

existence to other devices and

receive information about other

devices in the network.

The Cisco Unified IP Phone uses

CDP to communicate information

such as auxiliary VLAN ID, per port

power management details, and

Quality of Service (QoS) configuration

information with the Cisco Catalyst

switch.

Dynamic Host

Configuration Protocol

(DHCP)

DHCP dynamically allocates and

assigns an IP address to network

devices.

DHCP enables you to connect an IP

phone into the network and have the

phone become operational without

you needing to manually assign an IP

address or to configure additional

network parameters.

DHCP is enabled by default. If

disabled, you must manually

configure the IP address, subnet

mask, gateway, and a TFTP server on

each phone locally.

Cisco recommends that you use

DHCP custom option 150. With this

method, you configure the TFTP

server IP address as the option value.

For additional supported DCHP

configurations, refer to

Cisco

Unified CallManager System Guide