Example Pin Dialplan
public ini v1 · immutable[somewhere]exten => foo,1,Gosub(pin,s,1)[pin]exten => s,1,Background(getpin)exten => s,2,WaitExtenexten => _XXXX,1,Set(pin=${EXTEN})exten => _XXXX,n,Return[somewhere]exten => foo,1,Gosub(pin,s,1)[pin]exten => s,1,Background(getpin)exten => s,2,WaitExtenexten => _XXXX,1,Set(pin=${EXTEN})exten => _XXXX,n,Return