CME SIP Trunk DID Call Routing based on TO: Field

Hi All,

Can anyone give some advice on routing a SIP Trunk DID from an ITSP based on the TO: field of the SIP invite? In this case the ITSP only sends the sip-ua username (which is an 11 digit e.164 number) as the DNIS, so difficult to translate/route DID's based on the same DNIS [:)] However, they do send the DID in the TO: field of the SIP invite.


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