Call Manager Sonus SIP Trunk

[Alfredo Bosca Bataller]

We have a SIP trunk between Call Manager and Sonus Gateway (SBC 1000) to office365 voice mail.

The issue is that Call Manager send to Sonus a SIP CANCEL.We have reviewed the SIP trunk configuration on both devices and is the same that always. This voice mail feature fails since the certificates on Sonus were updated.

We attach the call flow,

Thanks,

[Vivek Batra]

Don't you expect reply of INVITE from Sonus?

Since there is no reply, CUCM is forced to clear the transaction using CANCEL. 

You need to look at Sonus side why it's not replying for SIP INVITE.

[Alfredo Bosca Bataller]

I have created more call flows and I am seeing that the DSP not is sending.

"Content-Length: 0"

I attach the file.

[Vivek Batra]

This is normal behavior as by default, CUCM uses SIP delayed offer and hence you are not seeing SDP offer in initial INVITE message.

If Sonus doesn't want to see initial INVITE without SDP, it should not have hold the call for long. Anyway, if you're not sure what's wrong at Sonus side, try enabling early offer in CUCM (under SIP Profile).

[Alfredo Bosca Bataller]

I have configured the early offer on CM but the issue is the same.

I attach the INVITE, TRYING and CANCEL messages.

Thanks in advance!
 

[Mohammed al Baqari]

Please see my earlier post. Something wrong with you SBC.

[Alfredo Bosca Bataller]

Thanks,

I have seen that Sonus not send the calling to UM 365.

SBC gives the following error related to invalid destination IP:
<135>[2015-09-01 16:30:33,393] 3400 0001 com.sonus.sbc.sip DEBUG (Transaction.cpp:645) - createClientTransaction: Transaction destination is XX-XX-XX-XXX.um.outlook.com [0.0.0.0]:5061
<131>[2015-09-01 16:30:33,393] 3401 0001 com.sonus.sbc.sip ERROR (Transaction.cpp:648) - createClientTransaction: Transaction Invalid dest. IP

Anybody knows how create a direct SIP trunk between CM and UM 365 without SIP trun with Sonus SBC?

Thanks in advance!

[Mohammed al Baqari]

Ok, so as expected SBC was having problem. Do you mean by UM 365 as Office 365?

If that is the case you need aSBC. Microsoft office365 dont support integration with Cisco CUCM 

[Vivek Batra]

Although INVITE is still going without SDP but I doubt there is anything wrong in CUCM. You need to check the logs/debugs in Sonus what's going wrong there.

[Mohammed al Baqari]

Hi,

The CANCEL is sent with cause value of 102. This means that CUCM INVITE timer expired without response from Sonus.

You need to check if Sonus is sending the call to outside and whether Sonus is receiving a response or not because Sonus isn't indicating to CUCM that the call is answered. Sonus is sending TRYING to CUCM which means the Sonus is trying to send the call to outside but no further messages. Then the timer is expired and CUCM cancels the call.