You don't need text messaging, or a cell phone for that matter, to send text messages to someone who has the service. Virtually every mobile phone and carrier around these days offers Short Message Service protocol, or phone messaging. It's a simple method of sending messages between the mobile phone and another device. Usually, you tediously enter your message into your phone (via the 12 tiny alphanumeric keys on the keypad), and then enter the number to which you wish to send the note. However, most people don't realize that you can send a short message from a computer to the phone, since your email client doesn't accept telephone numbers only, as a telephone does. The secret is the carrier.