Say a given number, returning early if any of the given DTMF number are received on the channel.
Returns 0 if playback completes without a digit being pressed, or the ASCII numerical value of the digit if one was pressed or -1 on error/hangup.

public class SayNumberCommand : AGICommand

Public Class SayNumberCommand
	Inherits AGICommand

public ref class SayNumberCommand : public AGICommand

type SayNumberCommand =  
    class
        inherit AGICommand
    end