[asterisk-users] dahdi and digium debian package

[ml asterisk]

Hi

I'm trying to install dahdi. I just need the dahdi timer for 
conference.
I currently using digium debian package for asterisk 1.8.8.1.
When i install asterisk-dahdi , i've got several dependencies which 
came for official debian repository (including the dahdi package) and 
are outdated.
Is it normal than dahdi is not include into digium packages ? Do i have 
to compil it before install asterisk-dahdi ?

Thanks for your help.