If the server is to operate from a LAN IP then the firewall/router must be opened to the following ports


Web GUI:

• TCP: 80, 81, 443

SSH access:

• TCP: 22
• TCP for Serverware: 2020, 2222
  

SIP traffic:

• TCP:  10001, 5060-5069
• UDP:  5060-5069, 10000-20000

IAX traffic:

• TCP: 5038, 5037
• UDP: 4569

Jabber traffic:

• TCP: 5222 or 5223