Record component

[VAD_Support]

If the "Terminate by DTMF" option is set to true, then recording should finish when 3CX detects any DTMF digit.
What phone are you using for testing this? Is it configured to send DTMF digits with RFC2833 or SIP INFO methods? If you configure the phone to send DTMF inband, 3CX may not detect them...

[elantech]

Iam testing with 3CX Softphone and incoming call into my external number via cell phone.

[VAD_Support]

Does it happen with both origins, softphone and external line?
Can you verify if your PSTN gateway is sending DTMF digits with RFC2833 or SIP INFO?
Can you show me the configuration form of the record component?

[elantech]

In both cases.
With call on external line digits transfer via RFC2833.
Screenshot of the settings in the attachement.

[VAD_Support]

Do you have a menu component before? Just to see if DTMF digits are being detected.
What component do you have after the Record component? Maybe the silence is not because of the record component, but in the following one...

[SWSDEV]

Iam testing with 3CX Softphone and incoming call into my external number via cell phone.

I've had problems in the past with the 3cx softphone not sending DTMF properly, but when using the TUNNEL. I later finally figured out I simply had to change the DTMF settings and then the DTMF messages started making it through the tunnel properly.