Internet is a must when it comes to cell phones nowadays. In an era of speed, communication, high technologies the phone as a device is obliged to rise to the expectation of a very sophisticated audience. Why to choose a wireless phone? The answer is simple: need for information in different places, at different moments.



In this wide market even the most pretentious requirements are respected. This is why it is hard to decide upon a specific model or another.

Let's start with Apple iPhone 3GS. The motto of this Apple model is “More to love. Less to pay”. It is a motto which makes sense once you get to know this smartphone. Let’s start with 3.5-inch (diagonal) widescreen of 3.5- inch, a Multi-Touch display and 480-by-320-pixel resolution. If we want to call it one of the best wireless phones it is vital to mention some wireless features: UMTS/HSDPA, 802.11 b/g Wi-Fi, GSM/EDGE (850, 900, 1800, 1900 MHz), Bluetooth 2.1 and EDR Wireless technology. In plain language: great conditions to connect to wireless networks, speed, and reliability. It meets all your expectations and it does not let you down.



Next in line we have HTC Droid Incredible (Verizon Wireless). The new HTC Droid is really incredible. Among the services provided there are some to be highly considered: able to connect to mobile broadband, HTML browser which supports Flash Lite 4.0, Wi- Fi , Google Maps with Navigation, a number of 1000 apps and 100 widgets easy to be found on Android Market. When talking about features remember that Droid Incredible come with Android 2.1, a great Google Experience Device, 8 GB of internal memory, GPS/e911. Using the new and the best of the HTC Sense, this Droid will require attention and gentle touches. It does the rest for you.



The third on the list is BlackBerry Curve 8900. This phone prides to be fit in your life. Great features stand behind this statement. Regarding wireless services this is what the Blackberry has to say: Wi-Fi Alliance Certifications, 802.11b/g enabled, Wi-Fi access to BlackBerry® Enterprise Server Wi-Fi Protected Setup, Wi-Fi access to BlackBerry® Internet Server, web browsing over Wi-Fi, and even support for UMA/GAN. The Blackberry Curve 8900 is designed to help you keep in touch. Only a mouse away.



Code name: Samsung Rogue SCH-U960 (Verizon Wireless). The Samsung Rogue is specially made for those whose life can be comprised inside a widescreen display of 3.1" . It says yes to USB, WAP, and Internet HTML browser with Flash Lite. As operating system platform stands CDMA/PCS/1X, EVDO, Rev A. Behind all these technical details Samsung Rogue also stands for speed, discretion and elegancy.



This is just a modest draft of the best wireless phones. The list could easily continue in the same tone. The phone models above are different in terms of design, specifications or features. However, they all have in common a very important goal: to make sure you keep in touch with the world. They understand to do this by providing you the required technology. Wireless stands for freedom of movement.

Many users have probably hears about smartphones and 3G technology, but not too many are sure what this really means. 3G stands for third generation technology, the current result of the efficient evolution of mobile phone technology. With 3G data can be transferred at an extremely high speed.



In the current times, the constant demanding for technological innovation plays a major role in our lives and with every kind of product. As regarding the mobile phones, a constant up-gradation of technology is a must in the current state of such devices. These are not only gadgets anymore, used to communicate but they also need a wide number of other features such as a camera, a huge storage space, Bluetooth connectivity, music and video playback and many other things. Apart from these sophisticated capabilities, the most important criteria when choosing a cell phone in the present is the connectivity. This is where 3G has come into demand.



Even though that most mobile handsets in the market at the present moment are based on 2G technology, including a standards like GSM (Global System for Mobile) communication. Other handsets have higher data transfer, speed and capability than the standard 2G, and can be included in the 2.5G and the 2.75G categories. Most common 2.5G technology includes the GPRS (General Packet Radio Service) and it works along with the GSM networks. In the same array we can find technologies such as CDMA and EDGE (Enhanced Data Transfer Rates for GSM Evolution). With successive technology generations the speed of data transfer has grown form the previous one, and in order to maintain the standards with certain services, such as ringtone downloading, picture and text messaging, and the mobile web the technology is being gradually enhanced.

The 3G mobile technology is considered a substantial advancement forward regarding the data transfer for cell phones. With the increasing demands coming from the users and the increasing mobile networks, providers have to buck up and offer faster data transfer rates than ever. 3G phones are considered a masterpiece of innovation and time. Features such as the video calling, allowing the user to see the person talking to over the phone is such an example of advancement brought by the new mobile technology.



As a result, all the leading manufacturers have launched their 3G enabled handsets and they the continuous object of a fierce competition between them. The 3G phones are the first preferences of customers, others than those expressing the option of buying a more economical mobile device, and as the last few years of this industry is showing us these are the favorites of everyone.

The 3G handsets are very advanced technologically as high-end devices with rich features. The price tag is also quite high, and this is the only reason that could make a potential user to change its mind. It is also true that many user do not mind their wallet, if they will be able to have the best technology at their disposal. So, we shouldn’t be surprised by the constant rising demand of such devices.



The main standards of the 3G technology, developed and used in areas around the globe are: W-CDMA or the Wideband-Code Division Multiple Access, providing the 2G GSM standard in two shapes, UMTS and FOMA. The EV-DO is designed by Qualcomm and is the CDMA`s competitor to the W-CDMA. EV-DO or the Evolution Data Optimized represents a broadband standard of data, already used by many wireless connection providers with a data transfer rate of approximate 2Mbit per second of download.

The Palm Pixi Plus smart phone is the new version of Palm Pre, which can be achieved for $99.99 with a two year contract from Verizon Wireless. This smart phone includes Wi-Fi and mobile hotspot capabilities, video recording, and integrated Flash support. Palm Pixi Plus resembles Palm Pixi very much, the only important difference being the Wireless Verizon presence. The price is also a good one for a new entry on the smart phone market. Once again we are amazed by the many capabilities such a thin and light designed smart phone can have, since the last appearance of the Motorola Razr. It has only 4.4 × 2.2 × 0.4 inches, and it looks far lighter and better than the previous Pre Plus, that measured 4.0 × 2.4 × 0.7 inches). Another surprising feature of this smart phone is its weight that reaches only 3.3 ounces, which means you can barely sense its presence while you keep it in your hand.

Not that it doesn’t have a solid appearance, because it looks quite well assembled and also has a rubberized back cover. On the whole, it is covered by a glossy black color, inspired by a modern aesthetic. It also has a ringer switch on the right side, two other distinct volume buttons, and a micro USB port. You can also choose between the many different back covers made by various artists, for a more personalized look, or between the solid color backs in Blue, orange, black, pink, and green, for $19.99 each.

It also manages multitouch gestures very well, and multitasks, such as pinching to zoom in on photos or web pages. It does respond very well and fast, to all these commands. However, the screen of Pre Plus was 3.1 inches, that is wider than Pixi Plus’s smaller screen size, but you will not have time to regret this quality shift, due to the previously mentioned multitasks it can handle. Of course, it was easier to see the text on the screen of a Pre Plus smart phone, whereas on the Pixi Plus you will have to firstly zoom in to start your reading. Otherwise, the small dimension of the screen would be seemingly too narrow to read large Web and e-mail pages. You will have to keep on zooming in and out in order to manage to read an entire Web page. You might also sense a lightening shift in the quality of the screen’s clarity, compared with Pre Plus. But this doesn’t differ too much, so it doesn’t keep you from enjoying the contrasts.

There is also a similitude between typing on Pixi Plus and on BlackBerry, more perceptible than with the Pre Plus. This thing is possible thanks to the candy bar design, unlike the slider one, which issues from the possibility to create a layout with raised keys. All these features maintain and make you reevaluate the importance of this smart phone’s design in keeping things simple and at the same time helping you accomplish all the complicated tasks, such as writing e-mails or typing Web addresses fast enough.

Transmission - Mobile phones have incorporated in them low power transmitters. Many cells have two signal power levels: 0.6 W and 3 W (to make a comparison, mention that most radio stations transmit at 4 w). Transmission station send it with low power. Low power transmitters have two advantages:
- The transmissions of stations and transmission of a cell phone does not get very far outside that cell. Therefore, in the diagram above, both can reuse the same frequency 56. Same frequencies can be reused many times across the city.

- Energy consumption of cellular normally function under the battery, its relatively small. Low power means small batteries, making it possible the existence of mobile phones so they can be held in the hand. Communication via mobile phones require a large number of broadcast stations in a given city, regardless of its size. In a typical large city they can have hundreds of towers.

But because so many people use mobile phones, costs remain low per user. All operators in each city also runs one central office called the Mobile Telephone Office (BFTM). This office handles all phone connections in normal land-based, telephone system and controls are all base stations in the region.

Mobile codes - All mobile special codes associated with them. The codes used to identify the phone, the phone owner and operator. Suppose you have on a cell phone, power it and someone tries to call. That call and the following occurs:
- When the phone put into operation, it expects to receive an SID (system identification code - A unique 5-digit) of the control channel. The control channel is a special frequency used by mobile phone and base station transmission to determine certain aspects such as system calls and change channels. If the phone cannot find any control channels, the phone realizes it is out of range and displays the message "no signal".

- When receiving SID, the phone compares it to the SID programmed into the phone. If the two SID's are identical, cell phone knows that it is communicating with is part of its internal system.
- Along with the SID, the phone also submits an application for registration and register your location

- BFTM phone in a database - in this way, BFTM knows where your cell is and will find it.
- BFTM site receives the call and tries to find you. The database is consulted to see which cell you are.
- BFTM chooses your frequency pair to, that your phone will use it in that cell to take the call.
- BFTM site communicates with your phone over the control channel  to tell it which frequencies to use, and once your phone and the tower will switch on those frequencies, the call is connected. Call is done through a radio that works in two ways.