What Applications are supported by DYNAMIC_FEATURES ?
I doubt that any such list exists.
One is not supposed to use applications that affect the dialplan flow of control (GoTo, GoSub, Macro, etc., but there are reports that even some of those actually work).
RoipKeepAlive => 2,self,SendDTMF(2); This dosn’t work
RoipKeepAlive => 2,self,Playback,tt-monkeys; This works
RoipKeepAlive => 2,self,SendDTMF,(2) ; This worked and did what i needed to do
Argument after the coma!!! just like the instructions said