Nortel Networks 1000 User Manual

Page 308

308

NT5D33 and NT5D34 Lineside E1 Interface cards

Figure 80
LEI connection to IPE

For example, the LEI can be used to connect the system to an
E1-compatible Voice Response Unit (VRU). An example of this type of
equipment is Nortel Open IVR system. In this way, the CS 1000E, CS
1000M, and Meridian 1can send a call to the VRU, and, because the LEI
supports analog (500/2500-type) telephone functionality, the VRU is able
to send the call back to the system for further handling.

The LEI can also be used to provide off-premise extensions to remote
locations, up to 500 miles from the system. In this application, analog
telephone functionality is extended over E1 facilities, providing a telephone
at a remote site with access to analog (500/2500-type) telephone line
functionality. See

Figure 81 "LEI in off-premise extension application"

(page 308)

. Audible Message Waiting Indicator can be provided as well.

Figure 81
LEI in off-premise extension application

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311

02.06

Standard

27 August 2008