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184 Interoperability

P0609327 02

H.323 trunk compatibility issues

The following tables provide a brief overview of the IP trunking and telephony compatibility

issues, including NetVision handset restrictions, and Gatekeeper restrictions. The tables are

organized by Business Communications Manager software release numbers.

Table 47 Software interoperability restrictions and limitations for IP trunking

Software release Description of restriction/limitation

All versions IPT payload sizes should be set to 30 ms.

All versions Silence suppression should be configured to the same value on both the Business

Communications Manager and the M1-IPT (for example: both on or both off).

Silence suppression is called Voice Activity Detection on the M1-IPT.

2.03 GA

2.5 GA

M1-IPT interaction with more than one IPT: when transferring, conferencing, working with

two or more IPT cards, they must be on the same subnet. If they are not on the same

subnet, one-way speech path situations can occur.

2.5 FP1 MR1.1 *Gatekeeper

• Officially Business Communications Manager supports only ECS 2.1.0.1 gatekeeper.

Business Communications Manager does not support Call Setup (Q.931) routing mode.

• Business Communications Manager does not support the Radvision Dialing plan

package.

• ECS option Check that call is active every XXX seconds must be unchecked.

• Radvision ECS 2.1.0.1 gatekeeper limitations: ECS does not support fast start in the Call

Setup (Q.931) and Call Control (H.245) routing mode.

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Avaya IP Telephony Guía de configuración Pagina 184