We have a SIP trunk in Dallas and as we added numbers around the country 911 has not been a problem except one location where I had to add a pots line because 911 could not be handled there. I have a new case where we closed an office in New York and moved the people to New Jersey. They want to keep their old numbers but we are not being allowed to put them on 911 service in NJ. We have new DIDs for the office and only 3 people have these New York numbers. I am trying to figure out if there is a way in session manager or cm to match on both the originating extension and the destination then change the outgoing caller id on the SIP trunk. Otherwise I have to get another POTS line and make the office ARS table use it for all 911 calls.