Cell phones have become a necessity and not a luxury and with the invention of Bluetooth technology, which is a wireless device, the use of phones has become more practical and convenient. Bluetooth cell phones use radio waves to connect to the headset or earphone, which is fully wireless. There are cell phone car kits available that plug directly and are accessible wirelessly. And the Bluetooth cell phone starts functioning once the car is turned on.

Bluetooth cell phones give the users a wire free, constant, and problem free use of their phones be it at home or in a car or outside. With a Bluetooth enabled phone, it is possible to wirelessly transform, contact information, meeting requests and emailing messages to other devices, which are Bluetooth enabled. Since Bluetooth offers the facility to utilize personal cell phone through an in car system, certain car manufactures offer Bluetooth as a factory installed feature.

The relatively low cost of bluecoat makes it more appealing. In fact some Bluetooth phones are less expensive than a phone without that facility. Major cell phone manufacturing companies currently sell phones with Bluetooth capabilities. It is possible to make and receive calls from the car using the existing cell phone number if a Bluetooth phone is available. The charges show upon the regular cell phone bill.

There is no need for a docking station or a hard-wired connection to make and receive calls.

Bluetooth phones have made life much easier and they are also increasingly available.
If the phone has a Bluetooth without Bluetooth on the PC, Bluetooth USB adapter can be picked up. The various versions of Bluetooth are backwards compatible, for example Bluetooth 2.0 phones will connect to a Bluetooth 1.0 hands-free headset. Most of the bluetooth are “class 2″ meaning that the range of the Bluetooth feature is up to 30 feet. There are rare “class 1” phones, which have a range of up to 300 feet.

The functionality of a Bluetooth is divided into various types of connections called profiles and only certain devices support certain profiles. For example, most phones support the headset and hands free profile to connect headset and car kit. All phones do not support the object exchange profile through which files, photos or information can be transferred. Some phones support Dial up networking while others connect to printers, keyboards and stereo headphones.

Bluetooth mobile phones are more popular than infrared mobiles because the range of infrared phone is one to two meters whereas a Bluetooth phone has a range of 20 meters almost like a short-range radio. In fact, Bluetooth phones can be utilized to send in and receive data from one room to another within a range of 20 meters crossing all barriers.
Bluetooth phones have an added advantage. It can connect too many devices simultaneously and is compatible worldwide. The Bluetooth system works upon a power efficient radio chip, which is small enough to fit inside any electronic device, and is the main provider of local connectivity. Bluetooth mobile phones do not need a high bandwidth.

Bluetooth phones can be utilized to transfer audio and video files. Since security is of great concern while using Bluetooth phones, encryption codes, authentication and other security features are included.

Bluetooth phone will soon become very common because of its easy to use capability and increasing availability.

Bluetooth Technology

What is Bluetooth?

Bluetooth technology is a type of the wireless technology that eliminates the need for the number of inconvenient cables and devices that are used to connect the computers, mobile phones, digital cameras, handheld devices and new digital appliances. Bluetooth enables the users to connect to a wide variety of telecommunication and computing devices easily, without cables.

It makes rapid ad hoc connections, automatic unconscious connections between two or more digital devices. Bluetooth provides the opportunity of using the mobile data in different applications. Bluetooth makes wireless communication between the two devices in a localized area of a room of office or home very easily. Bluetooth technology uses radio-based links and all the connections between the devices and invisible and instantaneous.

By Bluetooth technology your laptop can send print request to a printer in your next room. Bluetooth is actually a standard for wireless communication between the devices in a relatively small area and it is therefore works fine in the personal area network (PAN) using radio frequency.

Any two devices that follow the Bluetooth standard can communicate with each other. A number of the Bluetooth devices like digital camera, mobile phone and handheld pc can form a network. You can send emails to your mobile phones from your laptop without any physical connect between your laptop and your mobile phones.

Features of Bluetooth technology

• Bluetooth technology uses radio waves for communication in 2.4 GHz

• It supports multipoint communication not just point to point.

• Bluetooth works in a small area of 10-15 meters.

• Bluetooth offers speed of 1-2 Mbps.

• Bluetooth chipsets are less expensive though more expensive than IrDA.

How Bluetooth Technology Works

Bluetooth is a high speed wireless link technology that uses the radio waves. It is designed to connect the mobile phones, laptops, hand held devices and portable equipments with almost no work by the end users. Unlike infrared Bluetooth does not require line of sight between the connecting units. Bluetooth technology is a modified form of the current Wireless LAN technology and it’s more acceptable for its relative small size and low cost.

The current circuits are contained on a circuit board of 0.9 cm square and a much smaller single chip version is in development and soon it will be in use. The cost of the Bluetooth device is expected to fall rapidly. Bluetooth chip has to be equipped in many devices. In Bluetooth technology, small and inexpensive transceivers have been placed in the digital devices. The radio waves operate at 2.45 Ghz band on the Bluetooth devices. Bluetooth supports the data speed up to 721 Kbps and 3 voice channels. The Bluetooth chip can either be built into the devices or it can be uses as an adapter. In computer it can be used with the USB port. Each Bluetooth device has a 48 bit address from the IEEE 802 standards and the Bluetooth connections can be either point to point or multipoint. Bluetooth range is 10 meter but it can be extended up to 100 meters by increasing the power.

Bluetooth devices are protected from the external interference because they change their frequency up to 1600 times in a second. Bluetooth radio technology provides the bridge between the existing data network. Bluetooth guarantees security at the bit level and the authentication is controlled by the end user by using 128 bit key. An important face of the Bluetooth technology is that it instantly forms a network when two or more devices come closer in the range of each other.

Bluetooth Technology Benefits

Bluetooth technology is a convenient choice of communication in a wire free, short range environment. Bluetooth is a globally available standard for connecting the devices like mobile phones, digital cameras, laptops, MP3 Players, cars, stereo headsets etc. Bluetooth enable devices do not need to install any drivers. The key benefits of the Bluetooth wireless technology are its built-in-security, low cost, easy of use, robustness, and ad hoc networking capabilities.

The Bluetooth wireless technology is available globally. Many manufactures from the different companies are busy to implement the technology in their products. Bluetooth technology operates in the 2.4 Ghz, one of the unlicensed, industrial and scientific radio band. Bluetooth technology is a free of charge service but your mobile phones set should support the GSM and CDMA technology.

Today mobile phones have built in capabilities and Bluetooth functionalities in them. Bluetooth technology is available in the different range of the devices like mobile phones, automobiles, medical devices, industries and enterprises etc.

Due to the key features of the Bluetooth technology like low power consumption, low cost and wireless features make it more popular. Bluetooth technology does not require any fixed infrastructure and it is very simple to install and setup.

No wires are required to connect the Bluetooth devices. You can connect to other Bluetooth enabled devices anytime if they come in your range. Bluetooth wireless technology is widely supported and is secure wireless standard today. Bluetooth devices has built-in security features such as 128 bit encryption and pin code authentication when Bluetooth devices identify themselves they use the pin code when they first time connect.

Bushra Bashir

http://www.networktutorials.info

A Bluetooth is a single digital wireless protocol that utilizes the short-ranged communications technology. It facilitates both voice and data transmissions over a short distance, usually from a mobile device. In turn, it creates a personal area network (Pans). Bluetooth headsets are quickly becoming a fashion accessory and offers interesting features. Thus, it is capable of connecting multiple devices in the wireless age.

A Bluetooth is a single digital wireless protocol that utilizes the short-ranged communications technology. It facilitates both voice and data transmissions over a short distance, usually from a mobile device. In turn, it creates a personal area network (Pans). The intent behind the Bluetooth development is to provide a way in order to connect and exchange information between many devices. Examples would include mobile phones, telephones, computers and laptops, along with printers, digital cameras, videogame consoles and GPS receivers. This also comes with a secure and globally unlicensed Industrial, Scientific, and Medical (ISM) of 2.4 GHz of short ranged radio frequency bandwidth.

Hence, a 10th century Danish king, Harald Blatand, is where the “Bluetooth” got its name. Blatand I unified Denmark, Norway, and Sweden. The king had an affinity for teeth-staining blueberries, according to legend.

This device was first developed by Ericsson and was actually formalized in 1999, Bluetooth has then provided its own way of differentiating a device that is capable of communicating with other similar devices. This is through the sending data via a low cost and secure radio frequency. Its specifications were later developed and licensed by the so-called Bluetooth Special Interest Group (areas of telecommunication, computing, networking, and consumer electronics).

Moreover, the Bluetooth SIG, is currently releasing newer versions, along with several upgrades and backward compatibility. Bluetooth 1.2 is the most recent release. It includes the addition of an anonymity mode, which then masks the hardware address of the device in order to protect it from identity snooping and tracking. It also cuts the interference by avoiding crowded frequencies of adaptive frequency hopping.

Bluetooth headsets offer a convenient and user-friendly wireless connection. This is with the use of a Bluetooth-enabled cell phone. With its 30 feet range (10 meters) capacity, cell phones can talk with other headsets using this technology. Aside from this, PCs can talk to keyboards or printers as well. Thus, talking with each other, without the need for wires can make up about seven connections at a single time. This is even with a speed of 1 Mbps.

Furthermore, Bluetooth headsets have an array of different styles to choose from. A model with a boom or without boom might be the best type that can fit your needs. A boom is a traditional headset equipped with a microphone. It arches towards your mouth. Headsets with boom are as follows:

• Bluetake BT400 GII Bluetooth Headset

Bluetake is lightweight and have a comfortable fit. The volume is loud enough but the audio isn’t the best. It is somewhat static because of its tiny buttons. It somehow resembles the ones in the sci-fi movies of the late 1960s. With its changeable faceplates and foldaway boom, it definitely adds a plus factor to its design. Bluetake makes up about 4 hours of actual talk time and about 4.2 days of standby time.

• GN Netcom GN6110

GN Netcom can connect simultaneously with two phones, a landline and a cell phone. You only need to press the release button in order to get the headset out of the recharging cradle. Although it is lightweight, its audio quality is also good but it is a tight fit with an unattractive style. GN Netcom includes an adapter and it is compatible with Bluetooth 1.1. Thus, it provides a talk time of about four hours and about seven days of standby time.

• Jabra FreeSpeak BT250

This headset is a winner. Like a cyborg, Jabra FreeSpeak BT250 is comfortable, along with its high volume and clarity capability. It will make you think that you’re not even using it. With its innovative design, it is more like a science fiction movie prop. You can also get this quality headset for the price of $99.95. Thus, the headset weighs only 0.8 ounce and it is compatible with Bluetooth 1.1. Jabra also gives a total of 8 hours talk time and up to 10 days of actual standby time. Lastly, it includes a travel charger. This is two pieces, making it a bit bulky.

• Jabra GN-6210 Office Wireless Headset

The headset itself is identical to the crescent shaped of Jabra BT250. It employs a wraparound design and a short boom mike which holds the battery and control buttons. The GN 6210 can be used simultaneously with a Bluetooth mobile or a landline phone. This is by simply plugging it into the charging cradle. The price for this baby would range from $115.62 up to $203. It has along battery life, but it has problems with call quality. Thus, the GN 6210 has a talk-time battery life of about 8 hours and a standby time of about 7 days.

• Logitech Mobile Bluetooth headset

Logitech can make quality and practical headsets but not completely stylish ones that are also compatible with Bluetooth 1.1. This headset has an easy-press button and a great foldable boom microphone. It was also tested on the Nokia 6820, Motorola V600 and the Sony Ericsson T616. During the testing, clear conversations were encountered on both ends. Logitech can give up to 7 hours of talk time and up to 30 days of standby time.

• Logitech Mobile Freedom Bluetooth Headset

Mobile Freedom got its big points in its comfort ability and solid sound quality. Black in color, Logitech design is actually a little smaller and a bit stylish. Sound quality is excellent and conversations are clearer in this headset. Thus, the headset has user-friendly controls and it is light as well. It promises a talk time of up to 7 hours and a standby time of up to 10 days.

• Motorola HS8910 Bluetooth Wireless Headset

Motorola HS8910 is easy to use and stylishly equipped with an attractive, blue LED component. It uses the same charger as other Motorola phones, but a bit patchy with regards to its audio static. The folding microphone acts as the on/off switch. You can also get this oval shape headset for only $59.00. Motorola guarantees up to 5 hours of talk time and up to 4.2 days of standby time.

• Solteras Halo BTH headset

Solteras Halo provides great performance. This is since it has a battery that keeps going and going. It is huge and it features an inflexible ear loop and unappealing design. Audio is deemed clear. Plus, it can give out a 15 hour talk time and up to 15 days of standby time.

• VXI BlueParrott B100 wireless headset

BlueParrott can work with a landline phone and a Bluetooth-enabled mobile. It comes with a stylish charging base, but the over-head design may not be appealing. The controls are simple and sound quality was good. At $199, it is somewhat pricey, but with its versatile and reliability features, it will give a great functionality transition from a home to an office mobile. It has a rated talk-time of six hours and up to 4.16 days of standby time.

Headsets without booms are the ones that its microphone is located on the earpiece. Some models are as follows:

• Bluespoon Digital Bluetooth headset

Bluespoon takes a few tries to fit. Aside from this, the earpiece digs comfortably against your ear canal. It also has an eye-catching and small design that stands out because of its style. Thus, it provides good volume and clarity.

• Epox BT-HS01 Bluetooth headset

The Epox is smaller than most headsets. It comfortably fits, especially with its sleek design. Thus, it has a good overall audio quality.

• Motorola® H605 Bluetooth Headset

Motorola H605 is a perfect fit for those who are always on-the-go. With its lightweight and comfortable design, it gives up to 10 hours of talk time and up to 200 hours of standby time. It price is currently set at $39.95.

• Parrot DRIVER Bluetooth® Headset

Parrot driver is specially designed for all drivers. This is due to its combined cradle that can plug into a 12v cigar lighter. The 90 mA battery should also constantly charged so as to promote a long life. The price is set at $89.95.

• Plantronics® BT Headset Discovery 645

Discovery 645 lets you stay connected and it enables devices that support the Bluetooth 1.2. With up to 3 hours talk time and up to 120 hours of standby time; this device also comes in a sleek in-ear design and an innovative pocket charger. Thus, it comes with four adapters with a price that starts at $49.95.

• Nokia BH-200 Bluetooth Headset

Great design combined with simplicity and a great performance is what this headset is all about. It has convenient control buttons and an ear hook that’s easy to use. Its price is set at $39.95.

• Nokia® Bluetooth Headset BH-302

BH-302 works with all Bluetooth enabled devices, and it is compatible with Bluetooth 2.0, along with its handsfree profile. Its price is sets at $56.95. It has easy to use buttons with built in LED. This enables this device to show its headset status and acts as a power on/off trigger.

• Nokia Clip-On HS-3W

This Nokia headset has a bizarre design and it uses a wire in order to connect to a normal ear bud, along with a radio pod. It is easy to use because of its good outgoing sound. Aside from this, it also uses the same charger as the Nokia cell phones.

• Motorola® H700 Bluetooth Headset

With this Motorola headset, the fifth generation technology just got better. Motorola H700 enhances the folding microphone design, along with its superior audio quality and echo cancellation technology. Its price is set at $69.95.

• Nextlink Bluespoon AX Bluetooth headset

Nextlink is easy to repair and use. With its soft-tip earpiece, it isn’t as stable as other designs. Pairing the headset is also a breeze. It also has a good and clear call quality that is very much appreciated.

• Samsung™ Bluetooth WEP180 Black

This Samsung headset features a full control with call/end, call hold/wait buttons. It supports the Bluetooth 1.2 specification and provides up to 8 hours of talk time and up to 20 hours of standby time. With a price set at $42.95, you can get this handsfree headset.

• Step 1150 Bluetooth Wireless headset

Step 1150 is easy to use because of its rotating speaker. It resembles a silver shrimp which is designed to fit behind the ears. It is compatible with the Bluetooth 1.1 and 1.2. Thus, this headset’s performance is below par and likewise cut out for only a few feet away from the phone. This is along with its fuzzy reception.

• Sony Ericsson Bluetooth headset HBH-65

This rectangular Sony Ericsson comes with a blue and silver coloration. It is actually light and the ear loop snaps off easily. Callers can hear the person on the other line easily but the signal gets cuts out few times. The sound quality has mixed variations. Thus, it uses the same charger as other Ericsson phones.

With the oddball name of “Bluetooth”, IDC now estimates that there will be more than 100 million Bluetooth devices by the end of 2008.

Although Bluetooth has some security problems, such as bluebugging, where in a hacker can secretly accesses a phone’s commands and bluesnarfing, where in a hacker can access a phone’s data such as its contacts, Bluetooth devices can be locked with the input of a code. You can also turn it off when it is not in use. These are indicated as a few security measures for your device.

Hence, you can now find Bluetooth devices in a different array of products, even in cars. By the end of the year, there is a projected new set of Bluetooth version 2.0’s which will be released. These versions will have the enhancements of the narrowband channels. These versions will also enable messages, even without the pairing process, to be broadcasted to a high number of devices that have a high connection speed of up to 12 Mbps. Thus, with the constant evolution of technology, surely, more improved and enhanced versions of the Bluetooth will be produced.