Say a given character string with phonetics, returning early if any of the given DTMF digits 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 SayPhoneticCommand : AGICommand

Public Class SayPhoneticCommand
	Inherits AGICommand

public ref class SayPhoneticCommand : public AGICommand

type SayPhoneticCommand =  
    class
        inherit AGICommand
    end