Apr 21, 2008

Bluetooth Phones - Ins and Outs of Bluetooth

Purchasers of mobiles know what the Bluetooth is all about. For them this is a device through which they transfer data and information. But very few people know – what the Bluetooth is all about? And what is the specifications and characteristics of the new technology. Bluetooth is a short-range radio frequency (RF) technology that operates at 2.4 Ghz. The Bluetooth enabled devices is capable of transmitting voice and data. And it works better at the range of 32 feet (10 meters).

Another question that is being asked very often is: How is Bluetooth used? The answer according to the gsmfavorites is, “Bluetooth can be used to wirelessly synchronize and transfer data among devices. Bluetooth can be thought of as a cable replacement technology. Typical uses include automatically synchronizing contact and calendar information among desktop, notebook and palmtop computers without connecting cables. Bluetooth can also be used to access a network or the Internet with a notebook computer by connecting wirelessly to a cellular phone.”

Another very prominent question that is being asked and it is in everyone's mind is: How secure is a Bluetooth network? According to the gsmfavorites.com, it is “Bluetooth is extremely secure in that it employs several layers of data encryption and user authentication measures. Bluetooth devices use a combination of the Personal Identification Number (PIN) and a Bluetooth address to identify other Bluetooth devices. Data encryption (i.e., 128-bit) can be used to further enhance the degree of Bluetooth security. The transmission scheme (FHSS) provides another level of security in itself. Instead of transmitting over one frequency within the 2.4 GHz band, Bluetooth radios use a fast frequency-hopping spread spectrum (FHSS) technique, allowing only synchronized receivers to access the transmitted data.”Another very important question is : Is Bluetooth Phones practical for use with mobile devices? According to gsmfavorites.com, it is “Yes. One concern for mobile computing users is power consumption. Bluetooth radios are very low power, drawing as little as 0.3mA in standby mode and 30mA during sustained data transmissions. Bluetooth radios alternate among power-saving modes in which device activity is lowered to maximize the mobile power supply.”

Author: Carly Charu
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