There are a number of operators offering direct SMS text messaging to any cell phone in the world just by providing a full cell phone # and entering in the message. From what I gather this service is free to send and the recipient pays nothing.
Is it possible to submit an SMS/EMS/MMS message from my cell phone to my web server which itself can then resubmit the original message to the proper cellphone # as a "free" SMS/EMS/MMS text message? Does my web server then have to use a different protocol or have to listen on another port? How does an incoming SMS/EMS/MMS message look?