Cisco Systems CP6921CK9 What Networking Protocols are Used?, Communications Manager System Guide

Chapter 1 An Overview of the Cisco Unified IP Phone

What Networking Protocols are Used?

15	Applications	Opens/closes the Applications menu. Use it to access call history, user
	button	preferences, phone settings, administration settings, and phone information.
16	Contacts button	Opens/closes the Directories menu. Use it to access personal and corporate
		directories.
17	HandSet	Phone handset.

What Networking Protocols are Used?

Cisco Unified IP Phones support several industry-standard and Cisco networking protocols required for voice communication. Table 1-4provides an overview of the networking protocols that the

Cisco Unified IP Phone 6921, 6941, and 6961 support.

Table 1-4	Supported Networking Protocols on the Cisco Unified IP Phone
Networking Protocol		Purpose	Usage Notes
Bootstrap Protocol		BootP enables a network device such as	—
(BootP)		the Cisco Unified IP Phone to discover
		certain startup information, such as its IP
		address.
Cisco Discovery Protocol		CDP is a device-discovery protocol that	The Cisco Unified IP Phone uses CDP to
(CDP)		runs on all Cisco-manufactured	communicate information suchas auxiliary VLANID,
		equipment.	per port power management details, and Quality of
		Using CDP, a device can advertise its	Service (QoS) configuration information with the
			Cisco Catalyst switch.
		existence to other devices and receive
		information about other devices in the
		network.
Dynamic Host		DHCP dynamically allocates and assigns	DHCP is enabled by default. If disabled, you must
Configuration Protocol		an IP address to network devices.	manually configure the IP address, subnet mask,
(DHCP)		DHCP enables you to connect an IP phone	gateway, and a TFTP server on each phone locally.
		into the network and have the phone	Cisco recommends that you use DHCP custom
		become operational without your needing	option 150. With this method, you configure the
		to manually assign an IP address or to	TFTP server IP address as the option value. For
		configure additional network parameters.	additional supported DHCP configurations, go to
			the Dynamic Host Configuration Protocol chapter
			and the Cisco TFTP chapter in the Cisco Unified
			Communications Manager System Guide.
			Note If you cannot use option 150, you may try
			using DHCP option 66.
Hypertext Transfer		HTTP is the standard way of transferring	Cisco Unified IP Phones use HTTP for the XML
Protocol (HTTP)		information and moving documents across	services and for troubleshooting purposes.
		the Internet and the web.

Cisco Unified IP Phone 6921, 6941, and 6961 Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP)

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