Juniper Networks J4350, J6350 TGM550 Maximum Media Gateway Capacities, Additional Information

Chapter 3: PIM and VoIP Module Overview

Table 36 on page 71 lists the maximum number of media servers, telephones, and so on that are supported by the TGM550 installed on a J4350 or J6350 or J2320 or J2350 Services Router.

Table 36: TGM550 Maximum Media Gateway Capacities

Hardware or Feature	TGM550 Maximum Capacity
TGM550s that can be controlled by an	250
Avaya S8500 or S8700 Media Server

TGM550s that can be controlled by an	5
Avaya S8400 Media Server

TGM550s that can be controlled by an	49
Avaya S8300 Media Server

Media servers that can be registered as 4

Media Gateway Controllers (MGCs) on a

TGM550

Fixed analog line ports	2
Fixed analog trunk ports	2
Digital signal processors (DSPs)	1 (up to 80 channels)

Additional Information

This number also applies if a combination of Avaya G700 Media Gateways, G250 Media Gateways, and G350 Media Gateways are controlled by the same media server.

This number also applies if a combination of Avaya G700 Media Gateways, G250 Media Gateways, and G350 Media Gateways are controlled by the same media server.

This capacity is 50 if a combination of Avaya G700 Media Gateways, G250 Media Gateways, and G350 Media Gateways are controlled by the same media server.

The S8300 must reside in a G700 or G350 media gateway. Therefore, the maximum of 50 H.248 gateways supported by the S8300 means that only 49 of the 50 can be TGM550s.

If an MGC becomes unavailable, the TGM550 uses the next MGC on the list. The built-in SLS module can be considered as a fifth MGC, although its functionality is limited than that of a full-scale media server.

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For calls using voice codec sets with 20-millisecond-or-higher packet sizes, the DSP supports:

■80 channels

■20 channels

■10 channels

For calls with 10-millisecond-or-lower packet sizes, the 80–channel DSP supports 40 channels.

For TTY, fax, or modem over IP calls, the 80–channel DSP supports

40 channels.

Avaya VoIP Modules ■ 71