I recall the volume adjustment (and mute/unmute) worked on the prior version, but now it doesn't seem to, I contacted the creator, hopefully will get it worked out.

Installed correctly on both Windows and Linux servers running Joomla 1.5.10, qcontacts worked perfectly! Great component!

Installed in a flash, I did read that it isn't a WYSIWYG but I was cool with that prior to download, the comment ahead of mine here, that guy was purely complaining that it was hard to code and use??? Guess he didn't read the designer's notes. Great extension!