The Cell Phone Mysteries - What Are Dual, Tri and Quad Band Cell Phones and Where Will By They Work?
By Rose Lee
Multiple band cell phones and GSM frequencies can be especially confusing for anyone wondering how to start a cell phone business.
The GSM world grew quickly. As a result, many cell phone makers create cell phones that can work with more than one band with some working with as many as 4 bands.
* What is GSM?
* What are the GSM frequencies?
* Why do GSM phones have more than one band?
* How can I check if a phone will work in a particular area?
* How are multiple band phones defined and where will they work?
What is GSM? As unlocked gsm phones can be used with any GSM networks. Why do GSM phones have more than one band? As a result, wholesale cellphone manufacturers make GSM and GPRS phones with multiple cell phone bands so that they can work in multiple countries. Most cell phones work on two, three or even four bands. How are multiple band phones defined and where will they work? Dual band phone works with two GSM frequencies and, depending on where the phone is made will probably work for the frequencies 900MHz and 1800MHz. These phones are usually less expensive than other types of cell phone and it can be a good way to get a cheap cell phone that will still send SMS MMS and act as a WAP cell phone.
This unlocked GSM cell phone is a cheaper option than the quad band phone but safer than a dual band phone.
Quad band phones, or international phones as they are sometimes called, use four bands and can be used anywhere in the world. What Are The GSM Frequencies? If you are looking for a GSM world phone that will work in the US or South America then you're better sticking with a wireless cell phone that'll work on the 850Mhz and 1900MHz bands.
If you're working through how to start a cell phone business and considering phones to stock, it doesn't matter if you're thinking about a multimedia mobile, WAP phone or GSM watch phone, the process should be the same. Once you've got the GSM frequency the GSM phone worked on you can make sure it will work in your area.
If you are wondering how to start a cell phone business then your best course of action is to list the frequencies on the description for the GSM cell phone, along with the phone's other features (like if it is a music phone or it has a good cell phone camera) and tell the person who wants to buy unlocked cell phones from you which parts of the world it will probably work in.
So it looks like cell phone bands and GSM frequencies aren't that scary after.
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