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FREE CELL PHONE RINGER

free cell phone ringer

The history of mobile phones can be traced back to devices that are unrecognizable in today's GSM dominated world.

[edit] Early years

Mobile rigs were the beginning of mobile phones, along with taxicab radios, two way radios in police cruisers, and the like. A large community of mobile radio users, known as the mobileers, popularized the technology that would eventually give way to the mobile phone. Originally, mobile phones were permanently installed in vehicles, but later versions such as the so-called "bag phones" were equipped with a cigarette lighter plug so that they could also be carried, and thus could be used as either mobile or as portable phones.

Possibly the first real mobile phone, in the sense that it was connected to the telephone network, was tested by the Swedish police in 1946 for use in police cruisers. A half dozen calls could be made before the police car's battery ran out. Radiophones began to be publicly available in the US at the end of the 1940s[1], though the distinction between such phones and a two-way radio becomes blurry since special systems are required to "patch" into the phone network with the assistance of human operators. Download free cell phone ringers & software! Custom cell phone skins/faceplates! Email this free ringtones site Free ringtones & cell phone news! Details.

In December 1947, D. H. Ring, a Bell Labs engineer, proposed hexagonal cells for mobile phones. [1] Phil Porter, also of Bell Labs, proposed that the cell towers be at the corners of the hexagons rather than the centers and have directional antennas that would transmit/receive in 3 directions (see picture at left). The technology did not exist then and the frequencies had not yet been allocated. Cellular technology was undeveloped until the 1960s, when Richard Frenkiel and Joel Engel of Bell Labs developed the electronics.