[Freeswitch-users] Using * as "terminate and cancel"

[Alex Lake]

Is there a way to get playAndGetDigits to allow the user to enter a 
(telephone) number, but if they decide part way through that they messed 
up and they want to abort, they can  press * - and then (without 
checking validation) the lua script knows that they pressed * rather 
than the more normal # (which means "I've finished - now go do it!").