Features

DCS Over ISDN-PRI D-channel

Enhances DCS by allowing access to the public network for DCS connections between DCS switch nodes. With this feature, DCS features are no longer restricted to private facilities. The ISDN-PRI B-channel is used for voice commu- nications, and the ISDN-PRI D-channel is used to transport DCS control informa- tion.

DCS Trunk Group Busy/Warning Indication

Provides attendants with a visual indication that the number of busy trunks in a remote group has reached an administered level. A visual indication is also pro- vided when all trunks in a trunk group are busy.

DCS With Reroute

A sophisticated DCS rerouting capability for optimizing trunks. When you transfer out of your AUDIX voice messaging system, for example, DEFINITY ECS sets up a new path that optimizes system resources. Similar to the rerouting capabilities used with Q-SIG.

Enhanced DCS

Enhanced DCS adds features to the existing DCS capabilities. Additional fea- tures include:

Exchanging information to provide class of restriction (COR) checking between switches in the EDCS network

Providing call-progress information for the attendant

Allowing attendant intrusion between a main and a satellite

Allowing a main PBX to provide DID/CO intercept treatment rather than the satellite PBX

Extended Trunk Access

Used with Uniform Dial Plan, allows DEFINITY ECS to send any unrecognized number (such as an extension not administered locally) to another system for analysis and routing. Such unrecognized numbers can be Facility Access Codes, Trunk Access Codes, or extensions that are not in the Uniform Dial Plan table. Non-Uniform Dial Plan numbers are administered on either the First Digit Table (on the Dial Plan Record form) or the Second Digit Table. They also are not administered on the Extended Trunk Access Call Screening Table. Extended Trunk Access helps you make full use of automatic routing and Uniform Dial Plan.

A-46Issue 5 January 1998

555-230-024

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Lucent Technologies 555-230-024 DCS Over ISDN-PRI D-channel, DCS Trunk Group Busy/Warning Indication, DCS With Reroute