Now you can call to any number without having phone . Free calls from computer to mobiles .and free calls from wifi to mobile number . No need to pay anything. just connect wifi and call to any number .
This method called voip services . Few companies offering voip calls services. I will give you a list completely free to use and completely secured your information .
Yes . few of companies providing for free with limited features
This is the link click and install it from playstore download now
Signup with your email in app . after signup choose mobile number you wish to call with.
congratulations . now you can call anyone with wifi