AWS Hosted with Local SBC

[sonnyh1]

I have my 3CX setup in AWS, with local SBC.
The SBC and all the phones are on a UDM PRO with 192.168.2.0 subnet.
What local ports need to be open?
Is there any local forwarding needed for the phones or SBC

 

[Saqqara]

No port forwarding on the phones or SBC network

Just make sure you are not blocking 3cx tunnel port udp/tcp 5090 and https outbound.