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TGM550 Telephony Gateway Module
The TGM550 Telephony Gateway Module (Figure 25),
also known as the TGM550 Gateway Module, has two analog telephone ports, two
analog trunk ports, and a serial console port.
Figure 25: 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
 |
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.
|
Table 27 lists the maximum number of
media servers, telephones, calls, and so on that are supported by the TGM550
installed on a J4350 or J6350 Services Router.
Table 27: TGM550 Maximum
Media Gateway Capacities
|
Hardware or Feature
|
TGM550 Maximum Capacity
|
Additional Information
|
|
Media servers that can be registered as Media Gateway Controllers on
a TGM550
|
4
|
–
|
|
Digital signal processors (DSPs)
|
1 (up to 80 channels)
|
The DSP supports 80 channels for calls using voice codec sets with
20-millisecond-or-higher packet sizes.
For calls with 10-millisecond-or-lower packet sizes, the DSP supports
40 channels.
For TTY, fax, or modem over IP calls, the DSP supports 40 channels.
|
|
Busy Hour Call Completion Rate (BHCC)
|
800
|
–
|
|
Total of IP and analog telephones that can be connected to a TGM550
and TIMs
|
70 (J4350)
100 (J6350)
|
–
|
|
Touch-tone recognition (TTR)
|
32
|
Receivers
|
|
Tone generation
|
As much as necessary for all TDM calls.
|
–
|
|
Announcements (VAL)
|
16 playback channels for playing announcements, one of which can be
used for recording
20 minutes for G711-quality stored announcements and music-on-hold.
256 maximum announcements stored
|
 |
Some capacities may change. For the most recent list, see the Avaya
manual System Capacities Table for Avaya Communication Manager on
Avaya Media Servers.
|
For pinouts of the TGM550 RJ-45 console connector, see TGM550 Console Port Pinouts.
For pinouts of cable connectors for the TGM550 analog ports, see TGM550 RJ-11 Connector Pinout for Analog Ports.
For information about installing and removing an Avaya VoIP module,
see Replacing a PIM.
TGM550 LEDs indicate link status and activity. Table 28 describes
the meaning of the LEDs.
Table 28: LEDs for
TGM550 Gateway Module
|
Label
|
Color
|
State
|
Description
|
|
ALM
|
Red
|
On steadily
|
Alarm. A failure in the TGM550 requires monitoring or maintenance.
|
|
ACT
|
Yellow
|
On steadily
|
Active. The TGM550 is online with network traffic.
|
|
ASB
|
Green
|
On steadily
|
Alternate software bank. The software is not running from the selected
boot bank.
|
|
ETR
|
Green
|
On steadily
|
Emergency transfer relay (ETR) feature is active.
|
For more information about the TGM550, see the Avaya manual Hardware
Description and Reference for Avaya Communication Manager.
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