The technology advances in cell phone have brought many new features to average mobile phone users - VoIP, camera cell phone etc.. To differentiate its services from the rest of market, one service provider often offers the best quality in one or a few services. And cell phone users are unfortunately locked to one service provider. To unlcok the power of your cell phones, you’d want to unlcok your mobile phones so that you have the liberty to use the best services from any wireless providers. You may want to do this too if you travel internationally on a regular basis.

GSM and CDMA are two types of common digital mobile phone services. CDMA is used more common in US, but other countries in the world uses primarily or only GSM. Cell phone unlock works only for GSM type of phones. If you have a T-Mobile, Cingular, or M-mode type service with AT&T, then you have GSM service.

Mobile phone unlocking is 100% legal since you’re the owner of the phones and they’re your personal properties. Most companies do not want you to know this because they want to keep you as customers. There are many different ways for cell phone unlocking. Each cell phone is identified by an unique and specific serial number, and there’s a corresponding cell phone unlock code for each serial number. Many GSM cell phone can be easily unlocked with cell phone unlock codes. There are dozens of websites which offer cell phone unlock codes for $5-$10 each, and the website will help you unlock your mobile phone and switch services. Other types of phones (like the Motorola versions) need extra work. These phones usually have operating software that is hard to crack, so you’re required to connect your phone to another unit. Those services are offered for a very affordable price too.

To test whether your cell phone has been unlocked successfully, the easiest is to take the SIM (subscriber information module) card from another cell phone and see if it works in the one you have unlcoked. If an error is displayed, you’ll need to do the cell phone unlock again. If it still doesn’t work after this, you may need to send the phone to a company that offers the mobile phone unlocking service. No matter how experienced you are with cell phones, mobile phone unlocking is tremendously painless. To use your cell phone in another country, all you need is a pre-paid SIM card.

Natalie Aranda writes on technology and communications.

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