Is port restricted cone ok to use on 3cx ?

[commplete]

Hello

I have checked with our supplier and it seems that our router (Draytek 2820) is a port restricted cone router.

I see that the 3CX requires full cone. Is port restricted cone also suitable ?

Thanks

 

[archie]

It may work in many cases, but we can not guarantee 100% reliable work.

 

[5qg4]

Hi commplete,

We have already tested following Draytek 2200E+, 2910, 2950 and 5510 are works fine for NAT. Except we blocked the ports which use by SIP.