Nortel NT1R20 Description page 152

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Figure 30
Line-side T1 interface in off-premise application
Meridian 1
LTI
553-3001-105 Standard 5.00 June 1999
NT5D11 Line-side T1 Interface Card
For example, the line-side T1 card can be used to connect the Meridian 1 to a
T1-compatible voice response unit (VRU). An example of this type of
equipment is Nortel Open IVR system. In this way, the Meridian 1 can send
a call to the VRU, and, because the line-side T1 card supports 2500-type
functionality, the VRU is able to send the call back to the Meridian 1 for
further handling.
The line-side T1 card can also be used to provide off-premise extensions to
remote locations (up to 500 miles from the Meridian 1 system). In this
application, the analog telephone functionality is extended over T1 facilities,
providing a telephone at a remote site with access to 2500-type line
functionality (Figure 30). An audible message waiting indicator can be
provided as well.
T1 T1
Public
network
Channel bank
553-7595