The answer to the question CAN ALL CELL PHONES BE UNLOCKED is no. When consumers see the term ‘unlocked’ in reference to cellular phones, it is most almost certainly being used to describe a GSM phone. To understand what an unlocked cell phone is, you need to have a basic knowledge of GSM and CDMA technology.

In the North American markets, and Latin American markets , GSM and CDMA are the two technologies that the dominant service providers use. What most easily distinguishes one from the other is that GSM carriers require phones that use SIM cards, and CDMA phones do not. Here is a brief breakdown on what technology the dominant carriers in the USA use: T-Mobile, AT&T/Cingular, and Nextel (Not Sprint/Nextel) use GSM technology, and Alltel, Cellular South, US Cellular, Sprint/Nextel, and Verizon use CDMA technology.

Because T-Mobile, AT&T/Cingular, and Nextel use GSM technology, their phones require SIM cards, which are portable memory chips that go into the back of these phones. When you sign up for a service plan with one of these service providers, your account registers to your SIM card and not to the actual phone (which is the case with CDMA phones). This technology allows you to remove, lets say, your T-Mobile SIM card from your T-Mobile phone and place it in any other T-Mobile phone and use that new phone with your account, instantly.

This is where “unlocking” phones comes into play. The phones that are produced for T-Mobile, AT&T/Cingular, and Nextel are programmed to only recognize their own company’s SIM cards. When one of these GSM phones is unlocked, however, it will then recognize any SIM card from pretty much any other GSM carrier. The ability to unlock GSM phones greatly benefits consumers who have service plans with GSM companies. Lets say that T-Mobile makes the same version of your AT&T phone, but the T-Mobile phone has a camera and yours does not. All you need to do is purchase an unlocked T-Mobile version, and you can now use that camera phone with your service.

GSM technology is arguably the worldwide standard as well, so purchasing an unlocked GSM phone makes world travel very convenient. Lets say that you are a T-Mobile customer with an unlocked cell phone, and you book a vacation to Puerto Vallarta, Mexico. Instead of paying international rate charges for using your phone in Mexico, you can simply purchase a pre-paid SIM card from a Mexican cellular company, like TelCel, and use it with your unlocked phone.

However there are some features that work only with a phone designed for a specific carrier, though, so a consumer interested in purchasing an unlocked cell phone should definitely check with their service provider to make sure that the features that the need will work with any Unlocked Cell Phone

  unfortunately this may not have been the answer you were looking for when you asked CAN ALL CELL PHONES BE UNLOCKED but unfortunately it is what it is.

You probably already know that a good quality lens is as important in a digital camera as it is in an analogue one. You are also probably aware of the importance of mega pixels and how a higher number means a sharper picture.

Image stabilisation technology is something to look for. This is how modern digital cameras compensate for wobbly hands and the higher exposure times needed in low indoor light conditions.

Another useful feature is auto face detection with auto focus. Cameras with this capability can recognize facial features and automatically adjust the focus to make the face as sharp as possible. Ideal for those who like simple point and click cameras. A good zoom is feature to look out for. Some cameras have a digital zoom and others have an optical. Optical zoom is generally sharper than digital which simply enlarges the digital image, lowering the resolution and making the image less sharp.

You should also consider battery life. Personally I prefer cameras with rechargeable batteries that have a long battery life.

Look out for additional features like the ability to change lenses, image effects and built-in image editing capabilities.

There are many personal THINGS TO CONSIDER WHEN BUYING A CAMERA what look, what style maybe the color you like best, either way those are accents to who you are and should also be taken into account when shopping.