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Summary of services
40 Overview for the Avaya G250 and Avaya G350 Media Gateways
Voice software
The G250 supports telephone calls between a computer on the network running Avaya
Softphone software and analog/DCP telephones connected to the G250.
Outside telephone lines
The table below lists which ports you can use to connect each type of outside line. See G250
physical description on page 15 for more information about each type of port.
Media Gateway Controllers
A Media Gateway Controller (MGC) controls telephone services on a media gateway. An MGC
may be internal to the media gateway or external to the media gateway. An Internal Call
Controller (ICC) is an internal MGC. An External Call Controller (ECC) is an external MGC that
communicates with the G250/G350 over the network.
An Avaya S8XXX server managed with Avaya Communication Manager (CM) software acts as
an MGC for the Avaya G250 or Avaya G350 Media Gateway.
Table 9: Telephones supported and ports provided
Telephone type Ports
IP telephones LAN ports on the G250 front panel. For PoE functionality,
use an ETH LAN PoE port.
Analog telephones LINE or ANALOG LINE ports on the G250 front panel.
DCP telephones DCP ports on the G250-DCP front panel.
Table 10: Outside telephone lines supported and ports provided
Line Type Ports
ISDN lines G250-BRI only — ISDN BRI TRUNK ports on the
G250-BRI front panel.
Analog trunks Analog TRUNK ports on the G250 front panel.
T1/E1 voice lines T1/E1 port on the G250-DS1 front panel.