Accessing your 3CX phone server from outside your network although rewarding and very achievable, can be fraught with concerns and should only be attempted by a qualified person. The details listed below are for information only and in no way accept any liability however caused when used.
Ports used by 3CX Phone System
The following is a complete list of ports that 3CX PhoneSystem uses in a default installation scenario:
TCP:80 | … | If 3CX is installed for IIS, this is the default port number to reach the 3CX Management Console (http:///management) and the 3CX MyPhone Interface (http:///myphone) |
TCP:5000 | If 3CX is installed for Cassini, this is the default port number to reach the 3CX MyPhone Interface (http://:5000) | |
UDP:5060 | 3CX Phonesystem (SIP) | |
UDP&TCP:5080 | Listener for the 3CX Tunnel Protocol for bridge connections. Each tunneled bridge connection binds to a port number incrementally. | |
UDP&TCP:5090 | 3CX Tunnel Tunnel | |
UDP:5100 | 3CX Fax Receiving Service (SIP) | |
TCP:5480 | 3CX PhoneSystem Database Server (PostgreSQL) | |
TCP:5481 | If 3CX is installed for Cassini, this is the default port number to reach the 3CX Management Console (http://:5481) | |
TCP:5482 | 3CX PhoneSystem for inter-process communications | |
TCP:5484 | 3CX IVR vXML Server (both IIS and Cassini install scenarios) | |
TCP:5485 | 3CX Configuration Server | |
UDP:5486 | 3CX Assistant Server | |
UDP:7000-7499 | Default Range of ports for RTP Media Exchange with devices on the LAN (typically internal extensions, gateways, tunneled connections) | |
UDP:9000-9049 | Default Range of ports for RTP Media Exchange with devices on the WAN (typically voip providers, external extensions) | |
UDP:10000 | 3CX FAX Receiving Service for T.38 UDPTL traffic | |
UDP:40000 | 3CX Parking Orbit Service (SIP) | |
UDP:40010-40138 | 3CX Parking Orbit Service (RTP) | |
UDP:40300 | 3CX Conference place Service (SIP) | |
UDP:40310-40438 | Conference place Service (RTP) | |
UDP:40600 | 3CX IVR Service (SIP) | |
UDP:40610-40866 | 3CX IVR Service (RTP) |
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