Lucent Technologies Release 8.2 Manual Do Utilizador

319

Administration for Network Connectivity

555-233-504 — Issue 1 — April 2000

CID: 77730

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 (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.

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.

Feature-Related System 
Parameters

Enhanced DCS Enabled?

Apply Intercept Locally?

Enforce PNT-to-PNT Restrictions?