def application(call, appname, options = nil)
      opts = {call_command: 'execute', execute_app_name: appname}
      if options
        opts[:content_type]       = 'text/plain'
        opts[:content_length]     = options.bytesize
        opts[:command_body_value] = options
      end
      sendmsg call, opts
    end
def application(call, appname, options = nil)
      opts = {call_command: 'execute', execute_app_name: appname}
      if options
        opts[:content_type]       = 'text/plain'
        opts[:content_length]     = options.bytesize
        opts[:command_body_value] = options
      end
      sendmsg call, opts
    end
Execute an application on a particular call

 @param [#to_s] call the call ID on which to execute the application
 @param [#to_s] appname the app to execute
 @param [optional, String] options the application options

 @return [RubyFS::Response] response the application's response object