New Calling Trick!!

1st trick

Just go to
Mobivox.com
And register there after registration you get 10 minute of free call worldwide
When the calling minutes deducted then register again with different username and get 10 more minutes

2nd trick

JUST GO TO
M.ibibo.com
And register here

Then open this link
Http://m2.ibibo.com/wap/call.php
And enjoy free call