Figure 81 lei connection to ipe, Figure 82 lei in off-premise extension application – Nortel Networks Circuit Card 311 User Manual

Page 315

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Applications

315

Figure 81
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
1 can 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 82 "LEI in off-premise extension application" (page

315)

. Audible Message Waiting Indicator can be provided as well.

Figure 82
LEI in off-premise extension application

Similarly, use the LEI to provide a connection between the system and a
remote Norstar system. See

Figure 83 "LEI connection to Norstar system"

(page 316)

. In this case, channel banks are not required if the Norstar

system is equipped with an E1 interface.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311