'sms all members' like 'message all members'

Message to all members should have one more option. Message to all members is now sending emails only. If an sms option is also there, it will be really nice. Socialgo can include some ads in all sms to member's mobiles. It will promote all members to network to the maximum. Nothing can do the same job with this much result. The new option can be called as 'sms to all members'. There are many free sms websites. Why cant socialgo provide this system?. My members are almost Indians. Other members who are outside Indians can be excluded.