asterisk at home is no good... if you do it, use the regular asterisk and config it by hand in the config files.
If you wanna use your own voip device (sip)
you can sign up right this second to our sip gateway
free....
Sign up, it will tell you your registration settings for your device or softphone....
http://myvoice.splitinfinity.com
(click on register at the bottom of the page)