3rd Party SIP Phone and CCM 5.0.4

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Jun 16th, 2008
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I have a 3rd party SIP device connecting to CCM 5.0.4. The device sees callmanager but I keep getting an authentication error according to my realtime monitoring tool and am not sure exactly what is failing about the authentication. Is there a way to check this?

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htarra Fri, 06/20/2008 - 07:44
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This is most likely because of the following...

Because third-party SIP phones do not send a MAC address, they must identify themselves by using digest authentication.


The REGISTER message includes the following header:


Authorization: Digest username="xxxxxxxxxx",realm="ccmsipline",nonce="GBauADss2qoWr6k9y3hGGVDAqnLfoLk5",uri="sip:172.18.197.224",algorithm=MD5,response="126c0643a4923359ab59d4f53494552e"


The username, xxxxxxxxxxx, must match an end user that is configured in the End User Configuration window of Cisco Unified CallManager Administration. The administrator configures the SIP third-party phone with the user; for example, swhite, in the Digest User field of Phone Configuration window.


See the following document.


http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/5_1_3/ccmcfg/b09sip3p.html


Also Try this bug CSCef88775

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