SIP provider uses RTP 10000:20000

[kalvik]

The question is how adjust RTP ports to include this range? Using 3CX 15.0.62928.5.

 

[eagle2]

You don't need to adjust anything.
Provider may use UDP ports 10000-20000 (probably an Asterisk), your 3CX PBX -- 9000-9255.

Make sure you have forwarded ports correctly through your router and make sure 3CX firewall checker passes tests.

 

[kalvik]

Port forward 10000:20000 to 9000:9225
Or
Just a simple port forward

 

[GiannosC_3CX]

Hi kalvik,

The 3CX system phone works on the range of ports 9000-9255, so you need to open that ports to work properly your system. A simple port forward to your system. The range that mentioned above is used from other system probably from asterisk.

 

[eagle2]

Port forward 10000:20000 to 9000:9225

This will not work, sorry.

On 3CX you need to forward destination address: port (public address: port) to local address of 3CX: port, in 1:1 relation -- port 9000 to 9000, 9001 to 9001, ... You need to test it afterwards with 3CX firewall checker.
Ports in the range 10000-20000 are source ports (bound to source address of the other PBX / VoIP provider), not destination ports for traffic coming to 3CX.

 

[Sopock]

You don't need to adjust anything.
Provider may use UDP ports 10000-20000 (probably an Asterisk), your 3CX PBX -- 9000-9255.

That may be suspicious to provider. Imagine that ATA from provider is using that (first) range. We really need per trunk port range override?

 

[vectorpro]

I have the same issue with my VoIP Provider. According to them the 3CX send RTP traffic under the UDP port 9000~9255... and it has to be on the range 10000~20000, is there something to do on the 3CX.?