Cellular System Data Reception

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Cellular phones use special data streams to communicate with the switching equipment of the cellular service providers. This is used to control the mobile phone. The data is send in two directions: from the cellular tower to the mobile phone (known as the "forward" channels) and from the phone back to the tower (the "reverse" channels). For each of these directions, there are two types of data channels. Some information is sent out over the same channel as the voice, and can be heard as short buzzing noises by the phone user. These are short messages tell As usual, much of the information in this subject comes from the U.K.