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62 Avaya Application Solutions IP Telephony Deployment Guide
turning the SOHO branch into a seamless part of the enterprise’s network. For information on
the G150 Media Gateway, see Hardware Description and Reference for Avaya Communication
Manager, 555-245-207.
IG550 Integrated Gateway
The IG550 Integrated Gateway is a part of Avaya’s growing solutions for extending
Communication Manager communication capabilities from the headquarters of an organization
to all collaborative branch locations.The IG550 Integrated Gateway is an H.248 media gateway
that combines Avaya’s high-performance telephony and Voice over IP (VoIP) communications
with the sophisticated routing capabilities of the Juniper J-Series routers.
The IG550 consists of the TGM550 Telephony Gateway Module (TGM550) and Telephony
Interface Modules (TIMs). The IG550 is inserted into either a Juniper J4350 or J6350 Services
Router. The IG550 is also connected over a LAN or WAN to an Avaya server running
Communication Manager. Therefore, Avaya S8700-series, S8500, S8400, and S8300 Servers
are able to provide the same top quality telephony services to the small branch office as to the
headquarters of the organization. As a result, the IG550 provides full feature support for IP and
analog telephones. See Figure 12
.