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Codec-policy and T.38 gets rejected

edited Nov 9, 2017 10:22AM in Acme Packet (MOSC) 17 commentsAnswered ✓

Hello,

does anybody know how to resolve a following issue?

1. A switch from G.711 to T.38 works fine. No codec-policy is configured.

2. The customer added ingress and egress policies. Just added PCMU and tel. event which are not used anyway, so it should not be the problem.

3. The reInvite to t38 is sent by the called pty and routed to calling pty.

4. Calling party sends OK and the SBC drops it (488 Not Acceptable).

PCMA codec is agreed by called party. The called pty then sends a reInvite with image/t.38 offer only and the SBC rejects it..

I checked the acli guide and there're some notes about faxable codecs (G711FB) in the egress policy, but it is not clear how to configure it.

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