What is 2-way wireless messaging all about?
Before this question can be answered, it should be understood that there is no standard industry protocol for wireless messaging to two-way pagers. If fact, the term 2-way is really not suitable, because what many carriers offer is unofficially and more accurately known as either one-and-a-half-way or one-and-three-quarter-way paging. For simplicity, lets refer to them as 1.5-way and 1.75-way respectively. With 1.5-way paging, your pager is equipped with a cellular receiver instead of the traditional radio receiver. As such, over-the-air broadcasts to your pager are sent using cellular data packets instead of radio transmissions. Once the message has been broadcast, the transmitter tower has performed the equivalent of a standard 1-way message. After your pager has received the message data, and even before you read the message, it secretly sends a cellular data packet back to the tower to confirm its arrival. If necessary, the tower periodically repeats the broadcast until it receives
