You sure can
Can I Send And Receive Text Messages From My Computer?
YES ali
With the right application and system you can text messages. RingCentral.com can help you with that.
To send messages you can go straight to the carrier's site: Verizionwireless.com, att.com, etc.
Send free message worldwide to any cellphone, message arrives seconds after being sent, global coverage to over 600+ networks, NO registration required totally free, NO ads in messages, NO Restrictions visit www.text-media.net