Open your Internet browser by clicking "Start," "All Programs" and "Internet Explorer."
Browse to the Evaphone website (see Resources).
Click "Registration," and enter your personal information, including your name, email address, birth date and gender. Select a user name and password. Click "Create Account."
Log in to the site with your chosen user name and password.
Select "India" as the country to call, and enter the phone number. Press the green button at the bottom of the calling window to make the call. Press the red button to hang up the line and end your call.
Open your Internet browser by clicking "Start," "All Programs" and "Internet Explorer."
Browse to the Goober Youcall website (see Resources). Click "Register," and enter your information, including your name, email address and account password. You will need this information to make calls on the account.
Click "Log In" and enter your email address and password. Click "Log In" again to access the calling window. Enter your Mexico-based phone number and the destination number in India, and click "Call Now." The first two minutes of your call are free. Be sure to check the rates on calls to India and other locations, as they vary.
Press "End Call" when your call is complete.
Open your Internet browser by clicking "Start," "All Programs" and "Internet Explorer."
Browse to the Globe7 website (see Resources).
Click "Download Globe7" to install the calling program on your computer. Select "Free Download for Windows." Click "Run" to complete the download and installation process.
Open the application on your computer by clicking "Start" and "All Programs." Select "Globe7."
Click "Phone," and enter your destination number. Click "Call" to make the call and "End" to hang up the line when your call is complete.