Juniper Networks J-series Services Router J2320 - Manual (Page 92)

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