Incoming call but UCM does not respond


#1

Hello everyone.
I have a question need you support.
I use UCM6510 for some calls but ucm has no response.
So the provider IP waits for a long time to cancel?
UCM sends 100 trying but doesn’t send 200 OK?
I sent log and image, Pls check file capture log help me.
Thank you very much
Sorry for the bad English

caller fail.zip (1.3 KB)


#2

Please define the network setup and the UCM network mode. I see the provider is on a different subnet, so my guess is that for whatever reason they are not seeing the UCM response and timing out.


#3

Hi Ipneblett.
Not every call happens that way.
Sometimes this situation happens
I do not why
Thank you


#4

It is hard to say, but after 100 there should be 180 ring or 183 not 200 OK (unless it go to IVR/queue).

It was catch on UCM ?


#5

Yes, my call to IVR. But I didn’t hear the IVR and the call ended


#6

Would need to see the details in the pcap.


#7

Yes PCAP only have SIP, rtp is missing.
No idea what going there.