Specifications

Media gateway services
Issue 1 January 2008 27
Outside telephone lines
The table below lists which modules you can use to connect each type of outside line. See
Chapter 2:
Optional components for more information about each type of port and media
module.
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 G450 over the network.
An Avaya S8XXX server managed with Avaya Communication Manager (CM) software acts as
an MGC for the Avaya G450 Media Gateway.
Supported S8XXX servers
The MGCs supported by the Avaya G450 Media Gateway include both ECCs and ICCs. The
G450 supports the following MGCs:
Table 5: Outside telephone lines supported and ports provided
Line Type Ports
ISDN line ISDN ports on the MM720 and MM722 BRI media modules.
Analog trunks Analog trunk ports on the MM714 analog media module.
Universal analog ports on MM711.
DID trunk ports with wink-start and immediate-start only on
MM716.
T1/E1 voice lines The T1/E1 port on the MM710 T1/E1 media module.
Table 6: MGCs supported by the Avaya G450 Media Gateway
MGCs Type Usage
Avaya S8300 Server Media module ICC, ECC or LSP
Avaya S8400 Server External ECC
Avaya S8500 Server External ECC or LSP
Avaya S8710 Server External ECC
Avaya S8720 Server External ECC
Avaya S8730 Server External ECC