If the server operates from a LAN IP or behind a router/firewall, then the router/firewall must have all of the ports listed below opened/forwarded.
Web GUI:
- TCP: 80, 81, 443
SSH access:
- TCP: 2020
- TCP for Serverware: 2020, 2222
SIP traffic:
- TCP: 10001, 5060-5069
- UDP: 4000-4999, 5060-5069, 10000-20000
IAX traffic:
- TCP: 5038, 5037
- UDP: 4569
PWProxy
- v5.0 TCP: 10005
- v6.0 TCP: 10005, 10007, 10009
Jabber traffic (deprecated from v6.0):
- TCP: 5222 and 5223
Provisioning:
TFTP:
- UDP: 69
Central Phone Book (introduced in v6.0):
- TCP = 11389
- TLS = 11636