cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

360
Views
10
Helpful
4
Replies
Gordon Ross
Engager

Inbound calls From MS-Teams to CUBE cut off after three seconds

I've followed the configuration at https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise/interoperability-portal/direct-routing-with-cube.pdf to configure my CUBE (an ISR 4331 running IOS-XE 17.3(3) ) to connect to MS-Teams with Direct Routing.

 

Outbound calls from CUBE to MS-Teams work a treat.

 

Inbound calls from MS-Teams to CUBE disconnect after three seconds - with MS-Teams sending a "BYE" message to CUBE.

 

Has anyone seen this before (and know of a solution!)

Please rate all helpful posts.
4 REPLIES 4
Scott Leport
Participant

Hi,


Not seen that issue myself, but you could try one of the other MS Teams SIP proxy servers to see if you get the same issue.  

 

Doesn't sound related to your issue, but I had to disable CRL checking on the Baltimore cert. The TLS trunk between CUBE and the MS Teams SIP didn't come up without disabling it from my experience. You could try it and see what comes of that.

 

Also if you issue the "show sip-ua connections tcp tls" command, is the trunk up and stable?

 

As this is inbound calls I can't change the MS SIP proxy server. As I said, outbound calls from CUBE to MS-Teams work a treat.

Please rate all helpful posts.

Sorry for the misunderstanding. What do your debugs say? 

 

 

 

VON CLAWSON
Participant

I think your first step has to be to get the debugs from the CUBE. I would get debug ccsip message, debug ccsip error. Go through the messages and see what they say. If MS Teams is sending the BYE message what is the cause code? and are there any messages before the BYE indicating what might be happening. Three seconds sounds like it could be a timing issue but would have to see the debugs to determine that.

Please rate if this helps.
Create
Recognize Your Peers
Content for Community-Ad