Specifications

Avaya G250 Media Gateway
Issue 6 February 2007 115
Avaya G250 Media Gateway
The Avaya G250 Media Gateway is an H.248 media gateway that is managed by a server
running Communication Manager software. The Avaya CM Branch Gateways (G250 and G350)
form part of Avaya’s solution for extending communication capabilities from the headquarters of
an organization to all collaborative branch locations. Avaya CM Branch Gateways help you
provide the same high quality services to all organization members regardless of their location.
Detailed description
The G250 Media Gateway is a high-performance converged telephony and networking device
that is located in small branch locations, providing all infrastructure needs in one box —
telephone exchange and data networking. The G250 is designed for used in a two to 12 user
environment, aimed at small branch offices with two to eight stations. The G250 features a VoIP
engine, WAN router, and Power over Ethernet LAN switch. The G250 supports legacy analog
telephones, but not DCP telephones.
The G250 Media Gateway integrates seamlessly with the following Avaya media servers:
● S8700-series
● S8500, and
● S8300
Note:
Note: The G250 is supported only by the "B" version of the S8300 Media Server. In this
section, any references to the S8300 Media Server imply the S8300B version.
These servers run Avaya Communication Manager call processing software to provide the
same top quality telephony services to the small branch office as to the headquarters of the
organization. The media server can be located at the headquarters and serve the G250
remotely.
The G250 can optionally house an internal Avaya S8300 media server as a local survivable
processor (Enhanced Local Survivability) or as the main media server for stand-alone
deployment. As a local survivable processor, the S8300 is capable of providing full
Communication Manager functionality in the event that the connection with the server is lost.
As an alternative to the local survivable processor, the G250 can instead be configured for
Standard Local Survivability (SLS). See Survivability
on page 123.
The G250 supports the connection of PCs, LAN switches, IP phones, analog telephones, and
trunks, via fixed analog and PoE ports on the chassis. A media module slot supports either of
two WAN media modules, for connection to a WAN.
There are four models of the G250, with various port combinations for support of analog, BRI, or
T1/E1 trunks or DCP telephones, as described in Models
on page 116.