I'm not getting errors from this, so I believe the authorization is successfull. However, I am not able to make my IP Phone 7942 chime. Any suggestions please? I am using Javascript.   var xml = new XMLHttpRequest();   xml.open("post", "http://172.25.11.59/CGI/Execute"); xml.setRequestHeader("Authorization", "Basic MTgyMjg6MTgyMjg="); xml.setRequestHeader('Content-Type', 'text/xml'); xml.send("");