Hi folks, we have just recently bought the 3CX PhoneSystem v7. We are currently having problems with port/trunk disconnection. As from what we have observed, when someone from the outside calls a PBX local through the VoIP Gateway (we are using a Grandstream GXW4108, Program-- 184.108.40.206 Loader-- 220.127.116.11 Boot-- 18.104.22.168 ) and hangs up PREMATURELY, the local number still keeps on ringing. The port/trunks status shows up as connected as well. Thank you.