Hi, I have the following scenario: If the softphone2 respond with 486 freeswitch is working in this way: softphone1 FS softphone2 INVITE ----------> INVITE ---------------> <------------------- 486 <-------------- 200 ACK ------------------> ACK ------------> <-------------- BYE i want this behaviour: softphone1 FS softphone2 INVITE ----------> INVITE ---------------> <------------------- 486 <-------------- 486 ACK ------------------> ACK ------------> Any suggestion? Regards Alessandro