Some Things to Consider Before Buying Cell Phone

The early 1980's saw the first regional mobile phone networks being deployed in urban areas. This system allowed a person's phone connection to switch from cell tower to cell tower as they moved between the ranges of different pick-up points without interruption of service. All these early mobile mobile phone were rather large and were generally installed as "car" phones. However, miniaturization of the components began shrinking the size of these phones as the new millennium approached.

The prepaid choice seems to be very attractive for those on a low budget and also simply because it will give you total control of how much money you want to spend, let`s say in one month or during a certain time. This service is also known as pay as you go. It is by far the most popular plan available today. Keep in mind that with this plan, there is no contract to sign and therefore no penalties involved in case one decides to quit or use another service.

The technology by which the mobile phone works depends on the mobile phone operator; however, all of them use electromagnetic radio waves, which are in touch with a cell site (base station). The base station is composed of several antennas which are mounted on a pole, tower, or building. Cell sites are spread at a distance of 5 to 8 miles (approx. 8 to 13 km) from each other. The low power transceiver from the mobile phone transmits the voice and data to the nearest cell site. During movement, the cell phone will "handoff" the information to other cell site. mobile phone operators use many technologies to maintain the smooth stream of digitized data from the mobile phone to the cell site and vice versa.

The wireless telephone technologies are grouped under heads known as generations, starting from zero generation or 0G. The current generation going on is 4G; however, there are old cell phones (telefone celular) that still operate on 1G, 2G, and 3G technologies. The wireless mobile phone technologies used in each generation are as given below:0G: PTT, MTS, IMTS, AMTS, OLT, MTD, Autotel/PALM, ARP1G: NMT, AMPS/TACS/ETACS, Hicap, CDPD, Mobitex, DataTac2G: GSM, iDEN, D-AMPS, IS-95/cdmaOne, PDC, CSD, PHS, GPRS, HSCSD, WiDEN, CDMA2000 1xRTT/IS-2000, EDGE (EGPRS)3G: W-CDMA, UMTS (3GSM), FOMA, TD-CDMA/UMTS-TDD, 1xEV-DO/IS-856, TD-SCDMA, GAN (UMA), HSPA, HSDPA, HSUPA, HSPA+, HSOPA4G : UMB, UMTS Revision 8 (LTE), WiMAXFrequency bands: SMR, Cellular, PCS

With the turn of the twenty-first century, mobile phone had become pocket-sized and new features were beginning to be deployed within the phone. Wireless internet technology bean to merge the traditional mobile phone with portable computer services and cell phones came into being that could access the internet directly for the purposes of checking e-mail and exchanging text messages.This function soon led to the development of mobile phone web browsers that would allow a user to actually access the World Wide Web and browse in much the same was as a portable laptop computer. Small digital cameras began to be placed in mobile phone and not long after still photo capabilities emerged, video cameras were developed that could also fit into the confines of a mobile phone casing.

The first practical cell phone in a non-vehicle setting, and which could be handheld, was invented by Martin Cooper, the General Manager (Communications Division) of Motorola, who made the world`s first handheld mobile phone call on April 3, 1973.

Don`t be an impulsive buyer, before you make any decisions on purchasing a brand or model, I strongly suggest you to look for the online deals available. I personally have found very attractive deals on the internet and the online deals have become very popular with most users. Carefully check the options, prices, features on each model and compare the final costs with the models available at your local shop. Keep in mind that the overhead expenses the traditional shops have are the main reason for the same product to cost much more than the similar product obtained from an online source. Always prefer payments with credit cards, which will offer more security for the online transaction.

Besides the standard voice function of a telephone, latest mobile phone have features such as SMS for text messages, MMS for multimedia messages, radio, games, internet connectivity for email, browsing, blogging, music (MP3) playback, memo recording, built-in cameras and camcorders, ringtones, personal organizers, Push-to-Talk (PTT), Bluetooth and infrared connectivity, call registers, streaming video, downloading video, video call, and also serve as wireless modems for PCs that can be connected to the Internet.

Since there are several models and brands of cell phones (telefone celular) available in the market today, you may want to choose what seems to be most appealing to you regardless of its size, shape or design. You are the one who will be using it and you should be pleased with your choice.

Many new features and gadgets have been added to the new generation of cell phones (telefone celular). Most major brands have a variety of models that will certainly satisfy from the simpler to the most sophisticated user. The latest mobile phones have capabilities which include video calling, video recording, digital camera, mp3 player, GPS tracking system and other features. So if you don`t need any of these features, you may just want to stick to the basic and no frills type of handset which is much less expensive to purchase and much simpler to use.

The impact of mobile phone usage on human health has been of considerable worldwide concern. Research studies in Copenhagen, from the Danish Institute of Cancer Epidemiology, the National Cancer Institute, and the Institute of Cancer Research, do not establish any link between cancer and mobile phone usage. However, an intergovernmental agency IARC (International Agency for Research on Cancer) forming part of the World Health Organization of the United Nations, undertook a study of 4,500 users and found a statistically significant link between mobile phone usage and tumor frequency. Further research is still going on.

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