I have tested the feature that enable DTMF confirmation by the called extention when follow-me is routed outbound to external numbers. However, I want this feature enabled when calling from an internal extention. i.e. when the call is from an specific internal extention the called extention - after hook off - an voice announcement will be played, telling that you have received a call from this special extention, then confirmation with DMTF is required before call pickup (one DTMF for answer and one DTMF for termination of the call).
Can this be handled by standard functions in freepbx?