Fax calls Fail, SBC Unable to Transcode from T.38 (core) to G711fb/PCMA (peer)
(Doc ID 2208466.1)
Last updated on NOVEMBER 13, 2023
Applies to:
Acme Packet 3820 - Version S-Cx6.4.0 and laterInformation in this document applies to any platform.
Symptoms
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.
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |