Aliases to make it easy

It is easiest to start by making a few entries under Firewall > Aliases to make the rules easier to accomplish:

• Host alias for the PBX itself, named PBX, containing the local IP address of the PBX.
• Network or Host alias called SIP_Trunks for the upstream SIP trunk addresses, if known. If the SIP_Trunk

address/network is not known or changes, do not make an alias and leave these values set to any.

• Port alias called PBX_Ports containing all of the port numbers needed for SIP, RTP, and other control ports. (usually 5060 and 10000:20000, but varies from provider to provider and PBX implementation)