I think this could complicate things a bit... And stream metadata doesn't look like a reliable solution for me.
DTMF will be checked by time, eg. if you suppose that DTMF marker should be somewhere around 12:15, the program will wait for it from 12:10 to 12:20 (for example).
DTMF will be checked by time, eg. if you suppose that DTMF marker should be somewhere around 12:15, the program will wait for it from 12:10 to 12:20 (for example).