Dear all, $conn->SetEventLock("true") ; After this line only I played all the voice files(welcome messages, main menu). First the welcome message is played in order and also main menu options are played in order.While playing the message there is no prob. But the problem is that, it is not responding the DTMF keys. I need to handle the following things. * While playing welcome message the DTMF key should not be processed at that time or future. * While playing main menu it should process the DTMF key immediately.. * In the case of XML macro , I can specify the timout value, interdigit time out value, invlalid sound files.How can I handle in the Perl script.Is there any default variables or methods to handle it ? Please help me. -- Regards, Thangappan.M