cellphoneI hate cellphones. The reason I hate cellphones is because a new model comes out every few months that is better than the one before. This may not be a problem except for the fact that when you go to your cellular company to trade up they typically want you to renew your contract. A contract renewal can extend the life of your contract by 18 or 24 months. That's a big commitment for a phone you like, until the next one comes out. If you like to have the hottest thing out in cellphone communication, but don't want to renew a contract there may be an answer for you.

If you are a customer of T-Mobile,or AT&T you can upgrade phones without signing a new contract. My favorite way to shop for new phones is on eBay. I log on first to my cellular company's website to see what the latest and greatest is. Once I have an idea of the type of cellphone I want I look around on eBay for good deals. With over 220,000 listing's showing right now you are sure to find the deal that is right for you. Most phones sold on eBay are GSM phones which means if unlocked they will work with either network.

If you decide to use eBay for the purchase of your new mobile phone there are some things to consider. Try to find cellphones that are still in the box. Used cellular phones could have problems so its always better to just buy new. Make sure of the seller's feedback. I try to only buy cellphones from power seller's with a 95% or higher feedback rating. Read through the comments so you can make sure of the type of business a power seller conducts.

I9You should consider buying a phone that is unlocked, or a phone that is designed for use with T-Mobile or AT&T respectively. Most phones on eBay are unlocked when you receive them. The reason that a phone is locked is because phones from a cellular carrier are normally sold at a deeply discounted rate. Cellphone providers do this because they recoup their money through the cost of your cellphone service every month. A cellphone company will lock the phone to prevent you from taking the phone to use with another cellular provider. AT&T may unlock the cellphone if you are near the end of your contract or traveling overseas. T-mobile will give you an unlock code if you have been a customer in good standing for 90 days.

When a cellphone that uses a SIM card is unlocked any active SIM card placed in it will allow you to make calls. This feature is popular with customers who travel abroad and like to use a pay as you go SIM card from that country without the cost of buying a new cellphone. Countries overseas primarily use GSM for digital mobile phone service.

SIMST-Mobile and AT&T are the most primary users of GSM technology. Other cellular phone companies in the United States use CDMA. A phone that uses CDMA is not compatible on a GSM network. The easiest way to tell the difference between cellphones is that a GSM type cellphone has a SIM card while a CDMA cellphone doesn't.

You can easily tell if a phone is unlocked by borrowing a SIM card from a different network. If you place the SIM in your phone and turn it on and the phone acts as if it belongs to your friend then the phone is unlocked. A cellphone that is unlocked will still show a logo from another provider if it was previously locked. However it will still allow you to place calls on another network and use any other capabilities it was designed for.

tmobileOnce you have your new phone home it is simple to convert it for use with T- Mobile or AT&T. Remove the SIM card from the current T- Mobile or AT&T phone and switch it to the new cellphone you want to use. It really is that simple. You don't have to go into the local dealer for programing and you don't need to sign a new contract.

If the cost of paying for a new phone gives you the blues there is a bright side. In April 2010 Ymax the company responsible for the Magic Jack will be selling a new version that will essentially give you free outgoing and incoming calls on your cellphone. You must be within 3,000 sq. ft. of the device but, who doesn't like free?

Learn how to Make Your Cellphone Rates Disappear.