We are seeing some instances when we send a invite from the B-Leg back to FS and FS passes the invite to the A-Leg that the dialog on the A-Leg has not fully completed yet causing a return of a 491 from the A-Leg side causing the call to be disconnected. wanted to see if anyone else has seen something like this while running FS and if anyone had any suggestions on a fix? A-Leg Invite into Freeswitch 100 Trying back from FS to A-Leg 180 Ringing from FS to A-Leg 200 OK from FS to A-Leg at 15:08:14.638799 Invite from FS to A-Leg (From B-Leg below) at 15:08:14.749515 100 Giving a try form A-Leg to FS at 15:08:14.749757 491 From A-Leg to FS at 15:08:14.780968 ACK from FS to A-Leg at 15:08:14.781102 ACK from FS to A-Leg at 15:08:14.797143 BYE from A-LEG to FS B-Leg Invite from Freeswitch to B-Leg 100 Giving a try from B-Leg 180 Ringing from B-Leg 200 OK from B-Leg at 15:08:14.635670 ACK from FS to B-Leg at 15:08:14.637044 Invite from B-Leg to FS at 15:08:14.748623 100 Trying from FS to B-Leg at 15:08:14.748954 491 from FS to B-Leg at 15:08:14.782169 ACK from B-Leg to FS at 15:08:14.782372 BYE from FS to B-Leg