[asterisk-users] Set(CHANNEL(musicclass)=

[Joseph]

In asterisk 1.4 I had:
exten => s,n,Answer()
exten => s,n,SetMusicOnHold(default)

But in 1.6 1.8 I think don't need to use: SetMusicOnHold(default) (beside it is deprecated) as it is default.
In 1.6 and UP I think it is: Set(CHANNEL(musicclass)= 
Can somebody explain what do they mean by "CHANNEL"?

I could use just:
exten => s,n,MusicOnHold()

There is a lot of documentation on www.voip-info.org but sometimes it is not clear which asterisk version it applies to :-/

-- 
Joseph