andrewgroup Posted January 2, 2008 Report Share Posted January 2, 2008 Building SIP trunks between 3 offices allowing direct dialing extension Office 1 uses extension 100 to 200 same for the 2nd and 3rd office.. would creating interoffice SIP trunks to allow direct dialing VIA sip using 5 digit dial with the 1st 2 digits being the office code be the most affective way to accomplish this? assuming the 2 digit offce codes are 50, 51, and 52 what would the dial plan look like to route the call and to recieve a call? Quote Link to comment Share on other sites More sharing options...
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