Hi, I found another bug today: If I create an UAS and reject call, the 4XX Reply is resent. I release my UAS after the ACK. Caller ----INVITE---> B2B <---4XX-------- ----ACK-------> <-- 4XX------- <-- 4XX------- <-- 4XX------- <-- 4XX------- .... Regards, -- Olivier Détour