[applicationmap]
;testfeature => #9,callee,Playback,tt-monkeys   ;Play tt-monkeys to
                                                ;callee if #9 was pressed
inflash => *4,caller,Flash,()

outflash => *3,callee,Flash,()


Now when *3 is pressed on outgoing calls, the telcos line is flashed, and when *4 is pressed on incoming calls the same happens

pbx*CLI> show dialplan incoming
[ Context 'incoming' created by 'pbx_config' ]
  's' =>            1. Noop(${CALLERID(all)})                     [pbx_config]
                    2. Noop()                                     [pbx_config]
                    3. Noop()                                     [pbx_config]
                    4. Set(DYNAMIC_FEATURES=inflash)              [pbx_config]
                    5. Dial(Zap/g2/01|8)                          [pbx_config]
                    6. Wait(.3)                                   [pbx_config]
                    7. Dial(Zap/g2/00)                            [pbx_config]

-= 1 extension (7 priorities) in 1 context. =-