Problem with "telephone-event/16000" exist in SDP from ISP to CUBE

[Abdelrhman Elmenyawe]

Hello community i am facing a strange problem that i didn't find an answer on it.

the only thing i had found, that another user faced a similar situation but without got answer

https://github.com/pjsip/pjproject/issues/2675 

The problem when ISP send invite to CUBE and the SDP contain in the first negotiation for telephone-event 16000 as a first pirority, the CUCM not respondiong to this invite

but when the ISP send only  telephone-event 8000 it works fine

ISP (telehone event 16000) >> CUBE (telehone event 16000)> CUCM     "CUCM never respond and call failed"

ISP (telehone event 8000) >> CUBE (telehone event 8000)> CUCM     "CUCM respond and call works"

Below is the failed call:

Failed call

telephone event 16000

below is the working call:

Working Call

telephone event 8000

@b.winter  Appreciate your advice sir,

[Maren Mahoney]

Because RTP-NTE is part of the audio stream, it has to have the same clockrate as the audio channel. (Edited because, duh, 16000 for nte.)

I would suggest configuring an inbound SIP Profile to reorder references to telephony-event/16000 allowing the system to negotiate something else. 

Maren

[Abdelrhman Elmenyawe]

Hello Maren,

Thanks for your respone. 
I have develpoed a sip profile to remove it and tested with Cisco tool and looks fine,
I will try to update the VGW with it and see the result

voice class sip-profiles 10
rule 1 request ANY sdp-header mline-index 1 a=rtpmap:105 remove
rule 2 response ANY sdp-header mline-index 1 a=rtpmap:105 remove