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Call from U1981 to MS Lync failed. Error: SIP 404 No matching rule been found in the dial plan for called number

Publication Date:  2016-11-10 Views:  19 Downloads:  0
Issue Description
U1981 SW version - V200R003C20SPC500B013

MS Lync 2013 server.

Calls from MS Lync to U1981 transmit properly.

Calls from PSTN to Lync failed.

Alarm Information

Error appeared: SIP/2.0 404 No matching rule been found in the dial plan for called number.

Handling Process

Check the Lync rules for incoming calls:

 

Root Cause
MS Lync dial-in access number doesn’t match with the called number format provided by U1981.
Solution
Lync is waiting incoming number in +7495XXXXXXX format.

Change the called number prefix for outgoing calls on U1981 to equal with Lync side:

Repeat the call.

Result: call is success.

END