Lucent Technologies Release 4.0 manual DEFINITY AUDIX System Release

DEFINITY AUDIX System Release 4.0	Issue 1
System Description Pocket Reference 585-300-214	May 1999
Design and Operation
Hard Disk Drive	2-4

Networking features. In its maximum configuration, the DEFINITY AUDIX system can connect through this Digital Networking channel to up to 100 remote systems, or nodes.2

Digital Networking offers several advantages over AMIS Analog

Networking:

■Digital Networking is more secure than AMIS Analog Networking.

■Digital Networking uses Lucent Technologies’ Digital Communications Protocol (DCP) to send subscriber profiles and message status information along with messages, while AMIS does not send this information.

■Digital Networking messages have higher voice quality than AMIS messages because Digital Networking uses CELP encoding.

There is one important consideration, however, for customers who want to use Digital Networking. If customers use Digital Networking, the DEFINITY AUDIX system will have a maximum of 8 voice ports, rather than 12. Table 2-1 shows the maximum number of voice ports the DEFINTIY AUDIX system can have with and without Digital Networking.

Table 2-1. Maximum Voice Ports and Digital Networking Ports

	Digital Networking ports	Voice ports
Without Digital Networking	0	121
With Digital Networking	1	8

1.In switch releases earlier than Version 2, the system has a maximum of 8 voice ports.

High-speed Digital Networking Connections

The DEFINTIY AUDIX system offers three types of Digital Networking configurations: DCP Mode 1, DCP Mode 2, and DCP Mode 3.

DCP Mode 1 and DCP Mode 3 connections are high-speed Digital Networking connections. DCP Mode 1 and DCP Mode 3 connections require high-speed facilities to operate, but these connections offer advantages where there is heavy voice messaging traffic among customer sites. These high-speed Digital Networking connections can accommodate the maximum numbers of local subscribers (2000) and remote subscribers (100,000) the system allows.

2.This configuration is only available with high-speed Digital Networking connections.