Internet Access For Wireless Devices

Gaining internet access has become a way of life, the most common way is through your office or home desktop PC. But as you know there have been advancements in technology that allows internet access through other devices. The most important thing to remember is there are more ways to get to the information when one wants or needs the information. The information can take the form as games, stock quotes, mortgage rates, news, reservations, banking, sports updates, movies, spreadsheets, messages, pictures, weather, greeting cards, car loans, music. I think you get the picture, you can get any information that is available to you on the internet and it is formatted for the device that you are using. This is only the other half of the coin, so to speak, you can also buy information and again it will also take the same form as mention above in most areas. Just think of getting an alert on your wireless device for a change in a stock price and you have the option of selling or buying the stock.

How Wireless Devices Access The Internet

Cellular carriers started out only offering analog service on their networks, but because of the congestion and limited channel size, the networks were upgrade to digital. Although most people have left their analog phone behind, there are still some analog users out there. Today's mobile phones or cell phones, as they are more commonly called, communicate on a digital control channel that is provided by a cellular carrier. To broadcast this digital signal on their network, they will either use TDMA (Time Division Multiple Access) or CDMA (Code Division Multiple Access), and GSM (Global System for Mobile Communications). From there the digital channel is broken down into a voice channel and a data control channel. The data control channel is use by the carriers to send and receive data transmissions on their network. Your mobile or cell phone device must have a built in digital modem in order to connect to the data control channel. You also will have to signup for the service or get a package that is offered by your carrier for the internet.

For the sake of this article, Pocket PC, Palm, and Blackberry will be mentioned as PDAs. The PDA will have either a wireless modem built into the PDA, or a wired modem. The wired modems attached between your PDA and the phone jack. You can also buy an adapter that allow you to connect your cellular phone to your PDA, in this case you would be using the voice channel of your Cellular carrier to call your ISP provider. The draw back is you will have to watch you minutes as the call will come out of your plan or package minutes that you purchased from your Cellular carrier. Generally most PDA carrier networks transmit their service on CDPD or Mobitex. With speeds starting at 9.6 Kbps (kilobits per second) to 19.2 Kbps for text data only.

Different devices and modems can only connect to certain types of wireless networks. An example is a wireless PDA may use CDPD (Cellular Digital Packet Data) for connecting to the Internet, and a cellular phone may require GSM and WAP (Wireless Application Protocol) to make phone calls and logon to the Internet. So coverage should be a consideration before you purchase your wireless device. Your choice of a wireless device may boil down to what carriers provide Internet service in the area that you live in and where you may travel outside that area. Obviously Cellular carriers have a bigger footprint outside of the area that you live and most PDA carries only have service in major cities. Regardless of the carrier that you choose for your wireless device, keep in mind that once you leave your area you may not be able to access the Internet.

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