Gmail almost singlehandedly redefined the entire webmail segment after its launch in 2004. Since then, Google has steadily expanded the scope of its webmail service. It started off by integrating Google Chat with Gmail, and later added support for video chat, and recently integrated video conferencing through Google Plus Hangouts. Today, Google added another dimension to its mail service. You can now send free SMS to users around the world right from Gmail.
To be honest, this isn’t strictly a new feature. SMS in Gmail Chat has been available as a Labs feature for several years. Google is simply graduating this feature from Labs. To send an SMS to a contact who is offline, simply type his name in the chat window, and you will get the option to send an SMS from the “More options” section in the floating box that appears to the right of your contact. Of course, this will only work if you have your contact’s phone number.
SMS in Gmail Chat supports all operators in the United States, and most prominent operators in more than 50 countries. In India, it supports Aircel, IDEA, Loop Mobile, MTS, Reliance, Tata DoCoMo, Tata Indicom, Vodafone (Delhi, Mumbai, Kolkata, Gujarat, A.P, Bihar, W.B. & A & N, Assam, N.E. circles only). The two big names that are missing from the list are Airtel and BSNL.
SMS in Gmail Chat is free; however, it does have some restrictions to prevent abuse. Initially, you will have a credit of 50 messages. Every time you send an SMS through chat, your credit will decrease by one, and every time you receive an SMS in Chat, your credit will increase by five. If your credit hits zero, you won’t be able to send a message. In such cases you have two options. You can either wait as the credit will increase back up to one 24 hours later. Or you can send an SMS to your own phone, and then reply to that message multiple times. Every time you send a reply message, your SMS credit is increased by five. Effectively, you will be buying more messages by paying your phone company for these outgoing messages.