SIP trunk incoming callto CUCM 7.1.5 - authorization problem.

Unanswered Question
Aug 12th, 2011
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Hi everybody.

Just run into the strange problem - if SIP trunk uses digest authentification then CUCM 7.1.5 behavesin a strange way.

Incoming call goes like that:

1st invite goes without digest credentials.

After "401 Unauthorized" goes ACK and INVITE with all needed credentials.

But after that again goes "401 Unauthorized" !

INVITE sip:[email protected] SIP/2.0

               SIP/2.0 100 Trying

               SIP/2.0 401 Unauthorized  WWW-Authenticate: Digest realm="BOINC" ...

ACK sip:[email protected] SIP/2.0

INVITE sip:[email protected] SIP/2.0

Authorization:  Digest username="cucm71",realm="BOINC",nonce=......

               SIP/2.0 100 Trying

               SIP/2.0 401 Unauthorized

ACK sip:[email protected] SIP/2.0

I checked in the CUCM trace and found that digest user is not found

08/12/2011 13:02:05.005 CCM|ProcessSIPSecurity - can't find user cucm71 in the user table . Authorization fail.

But "cucm71" user is there.


If no digest authentification is used then, of course, incoming calls are OK.

With CUCM 6.1 I never have such problem.

Any clue?

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mitchell.drage Sat, 04/21/2012 - 05:39
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Any chance you got this to work?

I am having a similar problem where I have the application user configured and it denies me:

SIP/2.0 404 Not Found

Via: SIP/2.0/UDP;branch=z9hG4bKF41929

From: ;tag=74004330-1049

To: ;tag=1504004667

Date: Sat, 21 Apr 2012 12:34:05 GMT

Call-ID: B2EB9BA8-8AE411E1-887EF97A-F80FE12A


Warning: 399 CUCMPUB "Unable to find device/user in database"

Content-Length: 0


credentials username SIPTEST password 7 ********* realm test

retry invite 2

retry register 10

timers connect 100

registrar ipv4: expires 3600

sip-server ipv4:




Alexey Platov Tue, 04/24/2012 - 02:35
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I did manage it.

It was my negligence - you should manage "Digest Credentials" for this Application User not onle name and password! And your SIP trunk should use name and digest credentials configured.

mitchell.drage Tue, 04/24/2012 - 04:54
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Yeah I noticed that yesterday from your image.

I think my problem is caused by something else despite following the cisco guide to the tee.

I'll start a new thread rather than continue from yours.

Good to hear you found a solution for your problem.

Venkkatesh Laks... Tue, 01/27/2015 - 08:09
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Go to the trunk and check the sip security profile associated with this trunk.

uncheck the enable Digest Authentication in Device trunk security profile in the cucm.

reset the profile.


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