Nortel Networks 553-3001-211 manual Network, Lineside T1 interface connection to IPE

NT5D11 and NT5D14 Lineside T1 Interface cards Page 233 of 894

Figure 34

Lineside T1 interface connection to IPE

System

T1

Third-party

peripheral equipment

with T1 interface

Line-side T1

interface LTI

Trunks Public

network

553-AAA1123

For example, the lineside T1 card can be used to connect the system to a T1-compatible VRU. An example of this type of equipment is Nortel Networks Open IVR system. In this way, the system can send a call to the VRU. Because the lineside T1 card supports analog (500/2500-type) telephones, the VRU is able to send the call back to the system for further handling.

The lineside T1 card can also be used to provide off-premise extensions to remote locations (up to 500 miles from the system). In this application, the analog telephone functionality is extended over T1 facilities, providing a telephone at a remote site with access to analog (500/2500-type) telephone lines. See Figure 35 on page 234. An audible message-waiting indicator can be provided as well.

Circuit Card Description and Installation