[Asterisk-Users] not yet a new user, some questions

[Nicola Murino]

Hi,

I would like to have some more informations on asterisk,

I want to setup a linux based pbx and asterisk seems to be the best solution, 
I have some questions for configuration:

1) I have a PRI, so I must buy a digium card to interface with PRI, right?

2) If I connect an ethernet card from the pc (equipped with a digium card 
connectd to the PRI) to a switch I can connect users to this switch, right? I 
can connect traditional analouge phones to this switch?

3) asterisk doesn't support fax, right?

4) there is some hardware that support ISDN lines? I can use asterisk with 
ISDN?

thanks

regards
Nicola