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Community Member

cucm 6.1.2 2000-1 in sendonly after re-invite oneway speech

Hi there,

I have a problem with CUCM 6.1.3.2000-1 with SIP Trunk and goes like this.

When we place a call to another customer with an attendant IVR we become a re-invite, and that makes sense.
My CUCM responds with a send-only and now we have one-way speech attendant can hear me, but I do not hear attendant.
When I ask her to put me on hold and take me back then the RTP is running again.
Is there a solution to this problem?
I think the CUCM responds incorrectly to the first re-invite.

When we make the same call in a CUCM 9.x than there is no problem. laugh

I cannot post a wireshark tracefile :-( try to rename .txt to .cap ?

 

A party mobile 0610169718 place call to 0355482810 -------> CFwall to B party

B party 0263797979

 

 

CUCM pub 10.16.0.1

CUCM sub 10.16.0.2

Transcoder 10.16.0.6

Sip Trunk 10.135.56.180 provider

Behind provider 0263797979 ip centrex

 

4 REPLIES
Bronze

Hi Ronald,IVR side (10.135.56

Hi Ronald,

IVR side (10.135.56.180) should send first SIP Invite to hold the call which we can see in capture and then another Invite to transfer the call to agent (which we are not receiving). CUCM here is responding with 200 OK SDP as sendonly for first Invite but there should be another ReInvite coming in from Alcatel (IVR system) with SDP of agent extension.

Could you also share capture from CUCM 9.x for a working call?

If there is a CUBE involved in call flow then you can try configuring "mid-call signaling passthrough" command to consume mid call ReInvites.

 

Regards,

Mohit Singh

Community Member

sorry wrong files i have

sorry wrong files i have attached the new files

Bronze

Hi Ronald,Kindly share info

Hi Ronald,

Kindly share info on IP address involved in capture.

200 OK from 10.135.56.180 has sendreceive in SDP so signalling looks normal. What is the call flow?

Regards

Mohit Singh

Community Member

A party mobile 0610169718

A party mobile 0610169718 place call to 0355482810 -------> CFwall to B party

B party 0263797979

 

 

CUCM pub 10.16.0.1

CUCM sub 10.16.0.2

Transcoder 10.16.0.6

Sip Trunk 10.135.56.180 provider

Behind provider 0263797979 ip centrex

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