We have a CS1000M system that we are retiring and are moving resources to three CS1000E systems. Two weeks ago we moved the long distance trunks from the M to one of the E systems and we have discovered that LD calls from LYNC fail. I am getting a SIP/2.0 481 Call Leg/ Transaction Does Not Exist. I see the INVITE, TRYING,200OK,ACK,reINVITE,BYE,TRYING and this Call Leg error. The best I can tell, this error happens because of the BYE message but the call did not exist. LYNC users were able to make LD calls before we moved the trunks. Programming is almost the same except I am now using PRI Gateway units. Any ideas?