Duplicated sdp attribute

[allahverdiyev]

Hi all,

Anyone have the idea what could be the reason of cube sending duplicated sdp attribute in the re-invite message and how to prevent it from happening?

m=audio 29542 RTP/AVP 8 255 105 105 19

a=rtpmap:105 telephony-event/8000

a=ftmp:105 0-15

a=rtpmap:105 telephony-event/8000

a=ftmp:105 0-15

[Jonathan Schulenberg]

Does the incoming call leg reINVITE also have that duplication in the SDP?

Is there a voice class sip-profile that is copying SDP lines?

[allahverdiyev]

No, there is not duplication in the incoming call leg. Sip profile is as below:

rule 1 request ANY sip-header Min-SE remove
rule 2 request ANY sip-header Diversion remove
rule 3 request ANY sdp-header Connection-Info remove
rule 4 response ANY sip-header Require remove

I don't see any command that might copy any attribute under the sip profile. At least how I can remove the duplication?

[Jonathan Schulenberg]

That is very odd. Unless someone else has a better idea, I suggest opening a TAC case; this sounds like a defect.