Hi,
recovering this old post, the issue its when user A calls user B, the call is completed but user B declines the call, the user B gets the error “486 busy” when it should not gets anything, and user A who makes the call does not receive any type of error when he should receive a “603 Declined” and its maintains the “connecting” state indefinitely. It seems that the SIP gateway sends a 486 busy to receiver instead a 603 declined to caller.
Another type of error is when user A calls user B and the call is completed but user B neither answers and not declines the call, it is not in front and does nothing. The call on user A stays indefinitely waiting, and displays a timeout error after 3 minutes. ¿Its possible to reduce this timeout?