Cell Broadcast is a term used in Telecom that means to send a particular information to all the users within a certain area at once, and this information is called Cell Broadcast Message. This can be used, for example, for providing the traffic reports, weather reports etc.
To create a Cell Broadcast Message, the sender has to give the provider the information ha/she wants to send, usualy using a web-based interface (Web Page) offered by the provider. The sender visits the provider’s web page, logs into his/her account and creates a new message, and specifies when and to whom the message will be delivered. The Service Provider stores this information until it’s time to send the message. As soon the time ticks, computers take care of broadcasting the message.