How to send free SMS using your Gmail account
Gmail has introduced a new feature allowing users to send free SMS messages to any mobile number. To activate the feature, go to the Gmail setting page then select Labs and scroll down until you see the “Text Messaging (SMS) in Chat” and “SMS in chat gadget” and enable both options.
How to send SMS
In the Send SMS box above Chat, enter the phone number you want to send a SMS and press enter.
then a dialog box will appear. In the dialog box, enter Contact name of the SMS recipient and check that country and phone number are correct.
Then, click Save.
Type your message in the chat window and hit Enter.
Now Your message will be sent to the phone number you entered.
Using this new feature, You can send free SMS to your friends in the US and many countries around the world