Mm722 Media Module Specifications - Avaya G450 Overview And Specification

For BRI trunking, the MM721 BRI media module supports up to eight BRI interfaces to the central
office at the ISDN S/T reference point.
For BRI endpoints, each of the eight ports on the MM721 BRI media module supports integrated
voice and data endpoints for up to 2 BRI stations or data modules or both. The MM721 BRI media
module provides 48-volt phantom power to BRI endpoints.
The MM721 BRI media module supports 4-wire S/T ISDN BRI on each interface.
The MM721 BRI media module transmits data in the following ways:
• Over two 64-kbps channels called B1 and B2. You can circuit-switch these channels
simultaneously.
• Over a 16-kbps channel called the D-channel, which is used for signaling.
The circuit-switched connections have an A-law or Mu-law option for voice operation. In Data
mode, circuit-switched connections operate as 64-kbps clear channels.
The MM721 BRI media module is compatible with Avaya Aura
6.0.1 and later and Branch Gateway firmware version 31.18.1 and later.
The following table provides the MM721 media module display information for different Avaya
®
Aura Communication Manager releases.
Release 5.2.1/6.0.1 and earlier
Administer MM720 (non-native
admin)
Insert MM721
Result No Board

MM722 media module specifications

The MM722 BRI media module provides two 4-wire S/T ISDN BRI 2B+D access ports with RJ-45
jacks. Each port interfaces to the central office at the ISDN T reference point. Data is transmitted
in the same way as for the MM720 media module.
Note:
The MM722 media module does not support BRI stations or combining both B channels
together to form a 128-kbps channel.
April 2020
5.2.1 SP7/6.0.1 SP1
MM720 (non-native admin)
MM721
MM720X
Avaya G450 Branch Gateway Overview and Specification
Comments on this document? infodev@avaya.com
Telephony media modules
®
Communication Manager Release
6.2 and later
MM721 (native)
MM721
MM721
29