Can you check my settings?

In Native OS2008 SIP client I have :
1747xxxxxx@proxy01.sipphone.com as a UserName
My Gismo password as a password ( I can login to my account on gismoproject.com with these credentials)
Under Advanced button - on the Connection tab I have:
Transport -Auto
Outgoing proxy - fwd.pulver.com - came from IPKall
Port 5060
Discover public address - checked
Keep-alive mechanism - Auto
Keep-alive frequency 0

Authentication tab
Authentication user name - blank
Password blank
(Not sure what should I put here)

On STUN tab
Auto-detect STUN - checked


The first problem I have - my account can't go online.