NEC UNIVERGE NEAX 2000 IPS - Manual (Page 304)

Chapter 15 Integrated Services Data Network (ISDN)
Page 15-4 UNIVERGE NEAX 2000 IPS Request for Proposal (RFP) Reference Guide
Issue 6
DID Addressing
This feature allows incoming ISDN-PRI calls to terminate to stations, Attendant Console, Automated
Attendant, etc., based on the Called Party number. Direct Inward Dial trunks will be terminated to
preprogrammed destinations without Attendant assistance
.
Service Conditions
1. If the network is notified that the destination station for the DID call is busy or a connection-controlled
station, the network gives the calling station a Busy Tone. (This depends upon call forwarding services
being in service.)
2. If the called station is nonexistent, the DID call can be routed to the Attendant Console, another pre-
designated station, or to receive Reorder Tone.
Note: Refer to the Business Features and Specifications manual for more details of DID service.
DID and DOD Addressing
This feature allows the system to use DID and DOD on the same B channels. Trunk Provisioning
Service Selection is not required. (B-channels can be used for DID and DOD without separating the
trunk routes.)
Service Conditions
1. Confirm the DID and DOD selection with the customer’s local exchange carrier prior to installation.
2. The DID/DOD is supported without service provisioning, since no facility indication to the network is
required.
Note : For more details, refer to “Direct Inward Dialing” and “Direct Outward Dialing” in the Business Features
and Specifications manual
.
ISDN Terminal
This feature provides the system with an ISDN Terminal or Terminal Adapter (TA). ISDN Terminal to
ISDN Terminal, ISDN Terminal to ISDN Trunk, ISDN Trunk to ISDN Terminal, ISDN Terminal to Single
Line Telephone, ISDN Terminal to Multiline Terminal, and ISDN Terminal to PS connections are
available.
Service Conditions
1. The ILC (ISDN Line Circuit) card and the ICH (ISDN Channel handler) card are required.
2. The ISDN Terminal must be locally powered.
3. The following connections are available:
Point to Point connection
Point to Multipoint connection
National ISDN 1
AT&T
4. The following features are available:
Individual Terminal Calling (Point to Multipoint connection)
Group Calling (Point to Multipoint connection)
Called Party Recognition Service (DIT)
DID Addressing
DID and DOD Addressing
CPN to Network-Present
CPN to Terminating User-Display
Sub Address-Present
Direct Outward Dialing (DOD)
Restriction from outgoing call
Toll restriction