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A-46 Issue 5 January 1998
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.