asterisk users - Nov 2003 - GSM or WAV files for musiconhold?

Hello,

Is there any way to use GSM or WAV files for the MusicOnHold application? 

All I've seen so far is that mpg123 is the only way to use the musiconhold
application. 

It would be nice to not have the extra processor drain as well as the extra
mpg123 install to worry about to get Moh working.

MATT---