MusicOnHold event

Hi,

Does anyone know how can I get “MusicOnHold” event in * (1.6-beta9) manager? I can see “ChannelStates”, “Vars”, “Dails” etc. but no “MusicOnHold” - and as of this page http://www.voip-info.org/wiki/view/asterisk+manager+events there is “MusicOnHold” event.

Any help very much appreciated.