Hello, I'm new to 3CX PBX, I have two questions need help: 1. How could I set more than one domain to the PBX? Say I'm setup the 3CX PBX on an internet server, I want to assign three domains to this PBX: sip.mypbx1.com, sip.mypbx2.com, sip.mypbx3.com, does there has a guide ? 2. If I'm just run the PBX in LAN, the LAN is unreachable to internet, how could I activate it by a purchased license ? Does the activate requires internet connection ? Thanks in advance.