Follow The Steps
1) Goto
http://www.k7.net
now signup your account.
2) you will get mobilenumber United States Number.
Now Goto mail.google.com
3) create new account with the mobilenumber taken
from k7.net
and choose the country as united states
4) click the vertifification type "voice call"
now goto k7.net
and download the voicemail recieved from
gmail.com
and verify your account and enjoy...