| They may call it a wireless phone, but standard | | | | Before you start talking on a Bluetooth cellular |
| cellular phones still require wires at some point. | | | | phone, you do need to know a few facts. A |
| Besides the clunky charger, you also have to | | | | Bluetooth cellular phone has a range of 30 feet |
| fumble with cords to use a headset and to | | | | (10 meters), and the devices in question must use |
| transfer data between your phone and other | | | | compatible versions of Bluetooth. The majority of |
| gadgets. But there is an answer for anyone | | | | Bluetooth cellular phones currently in the |
| looking to cut the cord almost completely. With a | | | | marketplace works on Bluetooth 1.1. (Two |
| Bluetooth cellular phone, you can chat on a | | | | previous versions, 1.0 and 1.0B, were plagued with |
| wireless headset, transfer data magically through | | | | compatibility issues and have since been |
| the air to a handheld, or connect with a | | | | discontinued.) The Bluetooth Special Interest |
| Bluetooth-enabled car. But take care, as each | | | | Group (SIG), a trade association and development |
| Bluetooth cellular phone is not created in the same | | | | group, is releasing newer versions that promise |
| manner. While some carriers let you use a | | | | several upgrades and backward compatibility. |
| Bluetooth cellular phone for almost any means, | | | | Bluetooth 1.2, includes the addition of an |
| others restrict it to a headset only.Bluetooth is a | | | | anonymity mode, which masks the hardware |
| standard developed by a group of electronics | | | | address of the device to protect from identity |
| manufacturers that allows any sort of electronic | | | | snooping and tracking, and adaptive frequency |
| equipment -- from computers and Bluetooth | | | | hopping, which cuts interference by avoiding |
| cellular phones to keyboards and headphones -- to | | | | crowded frequencies. Bluetooth 2.0 has some |
| make its own connections, without wires, cables | | | | enhancements; among them are narrowband |
| or any direct action from a user. A Bluetooth | | | | channels, which will enable messages to be |
| cellular phone works at two levels: | | | | broadcast to a high number of devices without |
| It provides agreement at the physical level -- | | | | the pairing process, andhigher connection speeds |
| Bluetooth is a radio-frequency standard. | | | | of up to 12Mbps.When no other means of |
| It also provides agreement at the next level up, | | | | connecting to the Internet is available, mobile |
| where Bluetooth cellular phones have to agree on | | | | workers can use their Blue tooth cellular phone as |
| when bits are sent, how many will be sent at a | | | | a modem. An advantage of using a Bluetooth |
| time and how the parties in a conversation can be | | | | cellular phone is that it can remain in your laptop |
| sure that the message received is the same as | | | | carrying case or pocket, and a Bluetooth cellular |
| the message sent.While it may sound complicated, | | | | phone does not require a direct line of sight |
| a Bluetooth cellular phone works in a simple | | | | connection. If your laptop is not already Bluetooth |
| manner. A Bluetooth cellular phone communicates | | | | enabled, you can purchase a USB Bluetooth |
| with different devices by sending data via a | | | | adapter. |
| secure, low-cost short-range radio frequency. | | | | A Bluetooth cellular phone makes it easy to |
| Using the technology, a Bluetooth cellular phone | | | | transfer or receive information from other |
| can connect to headsets, PCs can connect to | | | | Bluetooth-enabled devices, eliminating the need for |
| printers or keyboards, and handhelds can connect | | | | extra cables. A Bluetooth cellular phone can be |
| to each other without any wires. Up to seven | | | | used with a Bluetooth-enabled headset allowing for |
| connections can be made at one time, at a speed | | | | handsfree operation. You can put the Bluetooth |
| of 1Mbps. All that's needed for any Bluetooth | | | | cellular phone in your pocket or carrying case and |
| cellular phone to connect to another | | | | still take calls. This is especially useful if you need |
| Bluetooth-enabled device is for them to be | | | | to use your Bluetooth cellular phone while |
| paired--normally, a hassle-free "handshaking" | | | | driving.Be secure |
| process for establishing a connection that takes | | | | As with any wireless device, a Bluetooth cellular |
| seconds and can be found in most wireless | | | | phone has some minor security concerns. The |
| connectivity menus.What's in a Name? | | | | SIG has admitted that bluebugging, where a |
| In case you were wondering, what's "Bluetooth" | | | | hacker secretly accesses a phone's commands |
| in the term "Bluetooth cellular phone", Bluetooth | | | | (such as eavesdropping on conversations), and |
| gets its name from a 10th-century Danish king, | | | | bluesnarfing, where a hacker can access a phone's |
| Harald Blatand (or Bluetooth) who unified | | | | data--such as the contacts--are possible, yet the |
| Denmark, Norway, and Sweden. According to | | | | group downplays both actions. While they work |
| legend, he had an affinity for teeth-staining | | | | through Bluetooth, they also require the hacker to |
| blueberries.Bluetooth Frequency | | | | use a PC and to be within range of the victim's |
| A Bluetooth cellular phone communicates on a | | | | Bluetooth cellular phone (10 meters). Still, Nokia |
| frequency of 2.45 gigahertz, which has been set | | | | and Sony have said these issues affect only older |
| aside by international agreement for the use of | | | | handsets that are available mainly outside of the |
| industrial, scientific and medical devices (ISM).A | | | | United States, and Nokia is promising a software |
| number of devices that you may already use | | | | upgrade. To help combat both, a Bluetooth cellular |
| take advantage of this same radio-frequency | | | | phone can be locked with a code or simply turned |
| band. Baby monitors, garage-door openers and | | | | off or put in hidden mode when not in use. |
| the newest generation of cordless phones all | | | | Another concern, depending on how you look at |
| make use of frequencies in the ISM band. Making | | | | it, is bluejacking. This often involves creating a |
| sure that a Bluetooth cellular phone and these | | | | flirtatious introductory message, then sending it to |
| other devices don't interfere with one another has | | | | another Bluetooth cellular phone (that is |
| been a crucial part of the design process.Pairing up | | | | discoverable) narby as a text message. |