Nortel Networks NN10033-111 Interworking with traditional phones, Existing, Switching system

10 Overview Nortel Networks Confidential

line-based voicemail server requires that a Line Gateway be placed between the MCP network and the voicemail server. This Line Gateway would process SIP messages to/from the MCP network and create the corresponding line signalling to/from the line network. “Interworking with third-party voicemail servers” on page 13, provides more information about how the MCP interworks with non-SIP aware voicemail servers.

Interworking with traditional phones

The MCP provides Converged Desktop Services (CDS) to facilitate the interworking with traditional phones of the TDM network. This allows users to have a personal computer (PC) provide the multimedia portion of their communication session while having the traditional telephony system provide the voice portion of their communication session.

Functional description

A user’s Converged Desktop consists of a regular TDM telephone, and a SIP Multimedia PC Client (PC Client) software provisioned as a Converged PC Client. Figure 2 shows how the Converged PC Client interconnects with the network. The Converged PC Client provides an enhanced communication experience to the user, while the TDM telephone works exactly as it does today.

Figure 2 Converged Desktop Services Network Diagram

MCP network				PRI		Existing
					switching system
							Various
							line
							protocols
SIP		Converged Desktop
			Traditional
	Converged
	PC Client			phone

NN10033-111 Standard MCP 1.1 FP1 (02.02) April 2003 Copyright © 2003, Nortel Networks