Hi, I'm continuing to make progress with the development of some dialplan applications using the Outbound Javascript Event Socket Library. The new challenge I've encountered is (I believe) related to event locking. I'm using the Outbound event socket in async mode. A simplified example of what I want to do is to play an announcement, wait for it to finish, then hangup the channel. Announcements are working fine in other parts of the application, but I'm having trouble forcing the announcement to play before the channel is disconnected. I believe this can be solved by activating event locking per: http://wiki.freeswitch.org/wiki/Event_Socket_Library#setEventLock However, I cannot find an example of this being implemented within javascript... I thought there would be a means of appending it to the execute command, but have been unable to determine how. req.execute('playback', 'conference/conf-enter_conf_number.wav'); Any help would be sincerely appreciated. I'm in the process of writing a guide describing basic examples of using Javascript with outbound event sockets. I'll add this to the list of hints for the newbies like myself once I've got to the bottom of it. Kind regards, Sara.