Cisco Systems 8941 What Networking Protocols are Used?, Networking Protocol Purpose Usage Notes

Chapter

What Networking Protocols are Used?

Table 1-1 Features on the Cisco Unified IP Phone 8941 and 8945

17	Applications	Opens the Applications menu. Depending on how your system administrator
	button	sets up the phone, use it to access applications such as call history,
		preferences, and phone information.
18	Contacts button	Opens the Contacts menu. Depending on how your system administrator sets
		up the phone, use it to access personal directory, corporate directory, or call
		history.
19	Phone Speaker	Speaker for the phone.
20	Programmable	Each corresponds with a phone line, speed dial, and calling feature.
	feature buttons	Pressing a button for a phone line displays the active calls for that line.
	(also called Line
		Color LEDs indicate the line state:
	buttons)
		• Amber —Ringing call on this line

•Green —Active or held call on this line

•Red —Shared line in-use remotely

21 Handset rest To rest the phone handset.

What Networking Protocols are Used?

Cisco Unified IP Phones support several industry-standard and Cisco networking protocols required for voice communication. Table 1-2provides an overview of the networking protocols that the Cisco Unified IP Phones 8941 and 8945 support.

Table 1-2	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 Audio Session		The CAST protocol allows IP phones and	—
Tunneling (CAST)		associated applications behind the phone
		to discover and communicate with the
		remote endpoints without requiring
		changes to the traditional signaling
		components like Cisco Unified
		Communications Manager (Cisco Unified
		CM) and gateways. The Cast protocol
		allows separate hardware devices to
		synchronize related media and it allows
		PC applications to augment non Video
		capable phones to become video enabled
		by using the PC as the video resource.

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

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