Solved Ports Used by 3CX Phone System

[complex1]

Hi,

Just notice a change in RTP port range.
https://www.3cx.com/docs/ports/
It was 9000-9500 UDP, now it is 9000-10999 UDP.

Also the Debian iptables shows a range from 7000-9500 UDP, not 7000-10999 UDP.
-A INPUT -p udp -m multiport --dports 69,5060,5090,7000:9500 -j ACCEPT

What is the correct range?

 

[Saqqara]

May have updated the ports info, ready for an upcoming service pack

 

[YiannisH_3CX]

Just notice a change in RTP port range.
https://www.3cx.com/docs/ports/
It was 9000-9500 UDP, now it is 9000-10999 UDP.

For your installation the correct port range the PBX will use is still 9000-9500.

 

[YiannisH_3CX]

May have updated the ports info, ready for an upcoming service pack

I have confirmed that the guide was updated in preparation for the upcoming service pack release.

 

[complex1]

Hi,

Thank you both for the responses.

Will the RTP range in the iptables be updated too?

 

[YiannisH_3CX]

Will the RTP range in the iptables be updated too?

This i don't know. We will know more once SP5 is released and we have a list of all changes

 

[complex1]

Thank you.

Please close this thread.