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74 Avaya Application Solutions IP Telephony Deployment Guide
IG550 maximum media gateway capacities
Table 14: IG550 media gateway capacities
Description Capacity Comments
Busy Hour Call rate (BHCC) 800
Maximum number of TGM550s
controlled by an S8500 or
S8700-series Server
250 This number also applies if a
combination of Avaya G700 Media
Gateways, Avaya G250 Media
Gateways, and G350 Media
Gateways are controlled by the same
server.
Maximum number of TGM550s
controlled by an S8400 Server
5 This number also applies if a
combination of Avaya G700 Media
Gateways, Avaya G250 Media
Gateways, and G350 Media
Gateways are controlled by the same
server.
Maximum number of TGM550s
controlled by an S8300 Server in
a G350 or G700
49 This capacity is 50 if a combination of
Avaya G700 Media Gateways, Avaya
G250 Media Gateways, and G350
Media Gateways are also controlled
by the same server. The S8300 must
reside in a G700 or G350. Therefore,
the maximum of 50 H.248 gateways
supported by the S8300 means that
only 49 of the 50 could be IG550s.
Servers registered as Media
Gateway Controllers. If an MGC
becomes unavailable, the IG550
uses the next MGC on the list.
4 The built-in SLS module can be
considered a fifth MGC, although its
functionality is more limited than that
of a full scale server.
Maximum total number of
telephones supported by the
IG550
100 Maximum includes a combination of
analog and IP telephones