Can anyonce share their Cisco VOIP router FreePBX route settings?

Hi,

Got outbound working with a Custom trunk. But then inbound DTMF
would not work.

I then tried a SIP trunk for both in and out.

Cisco 3640.

Any hints GREATLY appreciated.

The problem with DTMF not working was because on this router the RTP
ports 10001 - 20000 were not open. Opened the ports and inbound DTMF
started working.