Go to www.K7.net & Sign up there.
Create an account on gmail, but in location fill United States.
After Creating your e-mail account,Now it will take you to mobile verification page.
Here select the option of Voice call and fill the no: that you got from the website www.K7.net
Now you will get a mail having verification code as voice mail on that account from which you have registered on.
Go open it,download the attachment file and listen the code after that type the code of your voice mail in verification code and click ok.
Done. Your account is ready now.