DTMF signal: SIP INFO (application\DTMF)
context: from internal
Host: Dynamic
send RIPD: No
NAT: NO
Transport: ALL-TLS primary
Dial: SIP/your destination extension
That must do it
For people who like to now how to setup the VTO3211D with RASPBX
I installed the VTO3211D and a VTH5441 on Raspbx with the following setting
Every device needs it’s own extension offcourse
Only use SIP protocol (pjsip is not working), you must use RFC2833, AVP And video enabled
If you want to...