Brian, I have now pastebinned the SIP trace as taken from a Snom phone as a response to the command: Originate user/100008888201@10.3.1.24,user/100008888205@10.3.1.24 206 XML internalpreparation I also checked it from the server, and verified that no INVITEs are sent to the address belonging to 100008888205. Further, from the console the line: [DEBUG] switch_ivr_originate.c:700 switch_ivr_originate() variable string 0 = [presence_id=100008888201@10.3.1.24], is repeated twice with some 10-20 debug lines in between. To get some way further, I could try to repeat the tests you have done in your lab showing that there is no problem!? /Jon