def bind_meta_app args={}, &block
      arg_string =
        args.values_at(:key, :listen_to, :respond_on, :application).join(" ")
      arg_string += "::#{args[:parameters]}" if args[:parameters]

      application "bind_meta_app", arg_string, &block
    end
def bind_meta_app args={}, &block
      arg_string =
        args.values_at(:key, :listen_to, :respond_on, :application).join(" ")
      arg_string += "::#{args[:parameters]}" if args[:parameters]

      application "bind_meta_app", arg_string, &block
    end
Binds an application to the specified call legs.
 @example
   bind_meta_app :key          => 2,
                 :listen_to    => "a",
                 :respond_on   => "s",
                 :application  => "execute_extension",
                 :parameters   => "dx XML features"
 @see http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_bind_meta_app