Inbound SIP Call Issue - Error 404

[ejazahmedmukhtar]

We are facing inbound SIP call issue intermittently. The callers hear "Number Not in Service" message. We opened a case with ITSP and they say we are sending Error 404. We gathered logs for the faulty call and we see indeed CUCM is sending Error 404. We have the DN configured properly and also this issue occurs intermittently and difficult to reproduce. Any suggestions on this ?

[Carlo Poggiarelli]

Hi,

When you configured the SIP Trunk on CUCM, did you add the correct Inbound Calling Search Space for it?

Please let me know

Regards

Carlo

[ejazahmedmukhtar]

Hi Carlo,

Yes, we have added correct CSS. Also, this is an old setup. Calls fail randomly.

[Carlo Poggiarelli]

Hi,

So, as Chris requested, please take the cucm sdl trace through  Real Time Monitoring Tool and upload it specifying calling and called number.



Thanks



Regards



Carlo

[Chris Deren]

Post your CUCM SDL trace log for review for the failed call identifying called and calling number.