[asterisk-users] asterisk-radius

[Enrique]

hello all
This is my first message to the list.
I'm using asterisk and work fine in my enterprice.
My quiestion is if i can use asterisk to authenticate my users of radius on 
a service of dialup conections and whats i have installed on my server??
i have an  E1 with 30 channels i want destiny 15 to asterisk call and other 
to dialup conection, i need a recomendations please .
regards
sorry my english