Avaya QuesCom 400 Application Notes page 2

1. Introduction
These Application Notes describe a compliance-tested configuration consisting of a QuesCom
400 IP/GSM gateway networked with Avaya Communication Manager 3.1 using H.323 trunks.
The QuesCom 400 IP/GSM is an IP-GSM-gateway, supporting outgoing and incoming GSM
calls. All calls made from Avaya Communications Manager destined for the GSM network will
be routed to the QuesCom 400 IP/GSM gateway. The QuesCom 400 IP/GSM can also receive
calls from the GSM network and route the calls to Avaya Communications Manager. The
QuesCom 400 IP/GSM can provide a backup route for the PSTN and also be backed up by the
PSTN. This can be configured in Avaya Communication Manager using Automatic Route
Selection (ARS). These Application Notes focus on a configuration where an H.323 IP trunk
connects Avaya Communication Manager and the QuesCom 400 IP/GSM.
In Figure 1, Avaya Communication Manager runs on the Avaya S8500 Media Server. The
solution described herein is also extensible to other Avaya Media Servers and Media Gateways.
The Avaya G650 Media Gateway is connected to the PSTN via an E1 ISDN-PRI line and to the
QuesCom 400 IP/GSM via an H.323 IP trunk. The QuesCom in turn connects to the GSM
network via Subscriber Identity Module (SIM) cards that reside on GSM boards inserted in the
QuesCom 400 IP/GSM.
Figure 1: Avaya Communication Manager with QuesCom IP/GSM 400
HJP; Reviewed:
SPOC 9/14/2006
Solution & Interoperability Test Lab Application Notes
©2006 Avaya Inc. All Rights Reserved.
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