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SIP Trunk Configuration Problems

James Burns


Have recently created SIP Trunks as a means of an intercluster trunk to a third party telephone system.

Have created Route Pattern, Route List and Route Group which contains 2 SIP Trunks. Also created New Non Secure SIP Trunk Profile for the SIP Trunks. SIP Trunks using the Standard SIP Profile

My telephone is a 7965 using SCCP.

Route pattern 443X created to use SIP Trunk using standard port of 5060.

Have checked partitions and calling search spaces and these look correct.

Problem is that I receive engaged tone when dialling any 4-digit 443X extension.

CUCM version 7.1.3

Screenshot of SIP Trunk attached.

Thanks for any assistance.


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