Lucent Technologies Release 8.2 Italian DCS Protocol, Form Field, How to administer Enhanced DCS

Distributed Communications System B Private Networking

Interactions

•When interworking with non-ISDN trunks or non-Supplementary Service Option E ISDN trunks, DEFINITY acts as a gateway in the following sense:

~When a call is tandeming through a DEFINITY system from a non-ISDN trunk to an SSE trunk or from a non-Option E to an SSE trunk, the system acts as an incoming gateway.

~When a call is tandeming through a DEFINITY system from an SSE trunk to a non-ISDN trunk or from an SSE trunk to a non-Option E trunk, the system acts as an outgoing gateway.

As an example, when calls come in from the public network to the DCS network and then are transferred to another extension within the private network, DEFINITY functions as an incoming gateway and rerouting occurs.

•If a conference call is transferred, rerouting will not occur.

Italian DCS Protocol

Italian DCS Protocol (also known as Enhanced DCS) adds features to the existing DCS capabilities.EDCS is used primarily in Italy. EDCS adds the following features:

~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.

Note: EDCS is not compatible with DCS Over/Under ISDN-PRI. With EDCS, all nodes must use EDCS. If used with ISDN-PRI, configure the switch as a DCS node. Also, DCS-ISDN display enhancements are not currently available in EDCS.

How to administer

Enhanced DCS

Form		Field
Feature-Related System	•	Enhanced DCS Enabled?
Parameters	•	Apply Intercept Locally?
	• Enforce PNT-to-PNT Restrictions?

Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000	CID: 77730	319