setting the caller caller on outbound call foward

create a misc destination on the GUI like 00818097142323  then  on outbound route on the GUI  with  1NXXNXXXXX


[from-internal-custom]
exten => 1234,1,Playback(demo-congrats)         ; extensions can dial 1234
exten => 1234,2,Hangup()
exten => h,1,Hangup()


exten=>_001NXXNXXXXXX,1,Noop( ${CALLERID(num)})
same=>n,Set(CALLERID(num)=${CALLERID(num)})
same=>n,Goto(from-internal,${EXTEN:2},1)