Text messaging, also known as SMS (Short Message Service), is a method of communicating using text via mobile phone networks. When a text message is sent, it is converted into a code and sent over the network to the recipient’s phone. The message is then decoded and displayed on the recipient’s screen.

Text messaging works by using a protocol called Short Message Peer-to-Peer (SMPP). SMPP is a protocol that allows for the exchange of short messages between different entities, such as a short message service center (SMSC) and an external short message entity (ESME). The SMSC acts as a relay between the sender and the recipient, forwarding the message to the correct destination.

When a text message is sent, it is first sent to the SMSC associated with the sender’s mobile phone network. The SMSC then checks to see if the recipient’s phone is currently active and able to receive messages. If it is, the SMSC sends the message to the recipient’s phone. If it is not, the SMSC will store the message and send it as soon as the phone becomes active.

Text messaging is a quick and easy way to communicate with others, and it is supported by most mobile phone networks. It is a great way to stay in touch with friends and family, and it is also widely used for business communication.

Text messaging is also a cost-effective way to communicate. Most mobile phone plans include a certain number of text messages in their monthly packages, and additional messages are often relatively inexpensive.

In summary, text messaging allows people to send short text messages to other mobile phones through the use of the Short Message Peer-to-Peer (SMPP) protocol. It is a quick, easy, and cost-effective way to communicate.