SIP 488:Not Acceptable when calling from Cisco through Avaya Session Manager (ASM) to SBC

Doc ID		SOLN245279
Version:		1.0
Status:		Published
Published date:		27 Mar 2014

Author:

gtefft

Details

session manager (10.133.172.166) returning a SIP 488 error after invite from Cisco UCM phone
100% reproducablecisco softphone-->Cisco UCM trunk-->session manage --> SBC (PSTN

Problem Clarification

Calls from Cisco Call Manager through the Avaya ASM to SIP PSTN service (Level 3) fail to complete

Cause

SDP offer from Cisco had only G.729 codec offered

Solution

Cisco tech added G.711 codec offer into SDP and the PSTN SIP provider (Level 3) would then accept the call

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