User Guide

Figure 41: TGM550 Telephony Gateway Module
The TGM550 provides the following key features:
■ Voice
■ VoIP Media Gateway services.
■
Two analog telephone (LINE) ports to support two analog telephones or
incoming analog direct inward dialing (DID) trunks with either wink start or
immediate start. An analog relay supports emergency transfer relay (ETR).
■
Two analog trunk (TRUNK) ports to support loop start, ground start, centralized
automatic message accounting (CAMA), and direct inward and outward
dialing (DIOD) (for Japan only) trunks.
■ Survivability features for continuous voice services.
■ Call center capabilities.
■ Provisioning
■ Avaya Communication Manager (CM) media server management
■ Extensive alarm and troubleshooting features
■ Survivability
■ Media Gateway Controller (MGC) automatic switchover, migration, and
survivability features
■ Modem backup connection to the MGC
■ Dynamic call admission control (CAC) for WAN interfaces
■ Management: One serial port for console access over an RJ-45 connector cable
NOTE: The RJ-45 console cable and DB-9 adapter supplied with the TGM550 are
different from the RJ-45 cable and DB-9 adapter supplied with the Services Router
for console connections to the Services Router. You cannot use the RJ-45 cable and
DB-9 adapter supplied with the Services Router for console connections to the
TGM550.
70 ■ Avaya VoIP Modules
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide