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AMA-CUCM Troubleshooting: Best Practices for Reading Trace Files

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Beginner

CUCM Call Fails - 603 error

Hi Folks,

I have a CUCM v8 and a 2951 VR. When the customer is making calls to a couple of numbers they are failing with a busy tone. However calls to other numbers that are nearly identical and match the same route patterns complete. It appears to be happening on just a couple of numbers. Please see the attached for working and non working examples.

I believe this is an issue with the SIP provider as the logs show that the call is trying to connect but gets a SIP 603 Declined error:

603 DeclineThe destination does not wish to participate in the call, or cannot do so, and additionally the destination knows there are no alternative destinations (such as a voicemail server) willing to accept the call.

Can anyone confirm that this is the case? Or suggest what else it could be?

Many thnks

3 REPLIES 3
Beginner

Hi,

Hi,

From the logs I could see there is a authentication need, follwoing by several 100 trying messages and finally a decline message., Is this a normal Voip call or any other, you may need to research on this part.

9195981: .Jun 30 18:47:13.723: //351726/806E67290776/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP 10.10.10.30:5060;branch=z9hG4bK2D0F5267B;rport=56792;received=84.246.8.132
From: <sip:31786250121@sip.onecentral.net>;tag=5D7E0678-108F
To: <sip:00413225@91.212.183.55>;tag=7976a198c4b18bd93b766d69d5ec455c.4e68
Call-ID: FDA1B7A2-3E1811E6-AEDBDE37-C15E0977@10.10.10.30
CSeq: 101 INVITE
Proxy-Authenticate: Digest realm="sip.onecentral.net", nonce="57754cf8000000e2d4e21d2d545c8a94123119bc2403c3f1", qop="auth"
Server: OpenSIPS (1.5.3-notls (x86_64/linux))
Content-Length: 0

Regards,

M

Beginner

Hi M.

Hi M.

Yes this is just a regular local call for the user. It is an office location that they can reach by mobile phone so the far end is receiving calls with no issue.

Phil

Highlighted
Beginner

Re: Hi M.

Hi were you able to get any resolution on this?

Thank you.

Aomar.

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