asterisk users - Oct 2007 - Defining global variables in * conf files

Hello everybody,
I know that I can define variables in the [global] context of extensions.conf.

How can I do the same thing in other conf files, like features.conf?

Thanks in advance,

-- 
Dr. Andrea Spadaccini
Multimedia Technologies Institute - MTI S.r.l.
Web: www.x-voice.it - Tel: +39 (0) 95 7224945