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| Comma Seperated Value File | 1996-07-09 | 589b | 3 rows |
| # | ††††The cellular | or mobile | phone is really a portable radio telephone. Inside it are a tiny radio transmitter and receiver. |
|---|---|---|---|
| 1 | When a call is made | the battery-powered transmitter in the telephone connects the call to permanent receiving equipment in the area | called a cell. |
| 2 | From there | the call is connected to the ordinary telephone network. A transmitter in the nearest cell sends incoming signals to the radio receiver in the telephone. The whole system is called a cellular network. As a caller moves from one cell to the next | the telephone automatically connects to the next cell. |