Hello, I have a big problem right now. It seems since I have upgraded to V15 SP4, there's something wrong with the invite with oubound calls. The from field is not formed correctly. It's missing the user part and the host part is the same ip as the destination ip address. I have tried a lot of things in the outbound parameter tab of the trunk but nothing changes ( i'm watching the sip invites with wireshark directly on the 3cx server). This is a problem since the system connected at the other end of the trunk is not behaving as expected. Does anyone have a clue as to what is going on ? Thanks.