Good Morning, I'm having some problems with Yealink T46G with 3CX Phone System. I put that IP phone with a remote extension, at first he registed and making and receiving calls. But when he makes a call, the call stands for exactly 30 seconds, all the times. That doesn't happen when he receive a call. I used wireshark to see what's going on, and i saw which the my PBX send a "OK SDP" and the Yealink don't respond, then after some tries my 3CX send a "BYE" and he respond, then the call it's finished. Anyone had this problem?