[Ekiga-list] how to bypass SIP server and call a computer directly?

[Joe Wells <jbwells blueyonder co uk>]

Dear Ekiga gurus,

How do I bypass a SIP server and call a computer directly?  The
documentation only describes how to call someone who has an SIP
address.  However, if I know their IP address, I should be able to
contact them directly, right?  What do I put as the address to call?
Do I just use the raw IP address?  Do I need to prefix it by some
string?

-- 
Thanks,

Joe