System and method for communicating using two-way SMS

A computerized telephone system comprising:

• a receiver configured to receive at a first local platform telephone number, from a first local telephony device, a first remote telephone number of a first remote telephony device and a first text message for the first remote telephony device;
• a controller (1) configured to verify that an account of the first local telephony device will allow transmission of a portion of the first text message to the first remote telephony device and (2) transmit the portion of the first text message to a remote telephony platform that will forward the portion of the first text message to the first remote telephony device;
• and
• a transmitter configured to transmit to the first local telephony device a first local telephone number different than the first local platform telephone number and different from the first remote telephone number for use in communication of subsequent text messages from the first local telephony device to the first remote telephony device and text messages from the first remote telephony device to the first local telephony device,
• wherein the receiver is further configured to receive from the first local telephony device a second text message to be delivered to the first remote telephone number but addressed to the first local telephone number,
• wherein the controller is further configured to transmit the second text message to the remote telephony platform for delivery to the first remote telephony device,
• wherein the transmitter is further configured to receive from the first remote telephone device a third text message including the first remote telephone number,
• wherein the transmitter is further configured to replace in the third text message the first remote telephone number with the first local telephone number before delivering the third text message to the first local telephony device.