Hi, I’m using Asterisk with FreePBX and I set up some IVRs, so I need DTMF tones, but I found out a problem (and a possible security issue): also tones coming from an external context are resolved in feature codes. An extension should be able to transfer a call, but not the trunk.
Is it possible to disable features code only if the tones are coming from one side? If two extensions are communicating, it’s normal that both can use feature codes, but it’s not normal that the user from the other side of a trunk can do it.
Thank you in advance.