I can't get username and password

Hi,

Can you give use more information to what's the issue with your PC? If you're trying to set up VOIP with your PC here are some tips and pointers.

http://www.myvoipapp.com/docs/faq/setup_ippbx_for_small_business_step_by_step/
http://www.maximumpc.com/how-to-build-your-own-home-phone-server/