NEAX2400 IPX ISDN Features and Specifications
Page 174 NDA-24311, Issue 1
E-23 Event Based CCIS - ISDN Transport
E-23 Event Based CCIS - ISDN Transport
General Description
This feature provides Virtual Tie Line service for each event such as call ori gination and MCI mes sage transmissi on.
Inter-PBX link for this feature is established on B-channels of the public ISDN line using CCIS No. 7 signaling
protocol. For addressing a specific terminal, Called Sub Address or Called DID Number is used depending on the
network configuration.
Operating Procedure
No manual operation is required.
Service Conditions
1. The ISDN Primary Rate Interface (PRI) trunk is used for this feature.
2. The following ISDN interfaces are available:
No.4ESS
DMS100
N-ISDN2
3. When using Called Sub Address as addressing information:
a.) channel negotiation and Sub Address - Addressing must be available in the public ISDN network.
b.) different DID Numbers must be assigned to the ISDN line, the E-CCIS line and its alternate route
respectively. For E-CCIS, DID Number is required for each D-channel.
c.) Sub Address assigned to the E-CCIS trunk must be common to both offices.
4. When using Called DID Number as addressing information
a.) a different DID Number is required for each channel of an E-CCIS line.
b.) when channel negotiation is not available, call termination to an E-CCIS trunk must not be
allowed except when DID Number assigned to the trunk is dialed.
c.) different DID Numbers must be assigned to the ISDN line and the E-CCIS line. For E-CCIS, DID
Number is required for each D-channel.
d.) alternate route for the E-CCIS line cannot be assigned.
5. Each trunk for E-CCIS line cannot be used for the public ISDN line.
6. An E-CCIS signal channel and E-CCIS voice channels controlled by that signal cha nnel mus t be a ssigned
in the same turn. (Each channel used for an E-CCIS lin e must be controlled by a single D-channel.)
7. The number of routes that can be assigned for E-CCIS is up to five routes per D-channel.
8. When Verification of Connection is in ser vice, and if the last four dig its of the received numbe r are
different from those of the called number assigned by System Data, the connection is not established.
9. Release Timer of an E-CCIS line should be assigned for each channel (the value is assigned on a route
basis). When assigned time goes up after call completion, the E-CCIS line is released. The timer may be
15 sec., 30 sec., 1 min., 2 min., 5 min., 10 min., 1 hr., immediately after call completion (for a voice
channel only) or not released. If there is no assignment, 3-minute timer is set. If immediately after call
completion is set for the signal channel, 1-minute timer is set.