Fax calls Fail, SBC Unable to Transcode from T.38 (core) to G711fb/PCMA (peer)

(Doc ID 2208466.1)

Last updated on MAY 17, 2017

Applies to:

Acme Packet 3820 - Version S-Cx6.4.0 and later
Information in this document applies to any platform.


Transcoded calls from T.38 to G711fb does not work well. In signaling everything looks ok.

T.38 INVITE is forwarded with m=0 port for t38 and adding a new m= audio line to the end of SDP, which is all good. Then SBC receives 'fcs-BAD-sig-end' from the endpoint and and 'no signal' thereafter.


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