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In the US, you can make use of a SIM card to call your loved ones while you are away. The most convenient way to contact them is though mobile phones. Here are some things you need to know about it, which are as follows:

What is a SIM card

A SIM or the Subscriber Identity Module card is a small chip that contains all information about the phone company. It is inserted into a slot in the mobile phone to keep it running and functional. It is a pre-paid card wherein the bearer can use it anytime with ease by simply loading at least the minimum required amount. Every time you use it, the consumed amount is automatically deducted from your current available balance.

Availability

SIM can be shipped to any parts of the world; either Asia, Europe, or anywhere in the globe. This can be ordered online through the use of a shopping cart. It takes 1 - 2 days before the item arrives to its place of destination. A conservative rate is charged when the delivery is only within the US while, a bit higher when it is located anywhere else in the world.

Method of activation

Unfortunately, cards are not pre-activated, which means there are no given phone numbers yet. This is to ensure maximum safety and precautions when it comes to public information. Once you get hold of the card, it can be easily activated either online or through phone the soonest. You just have to use the activation code that comes along with it. Since there are several phone companies, you can also seek help from them by calling their respective toll-free customer service centers.

Usefulness

Not all cards are SIMs are compatible with all phones and are useful in all countries; therefore, you need to inquire prior to the purchase. While some phones have locked GSM feature, other types such as dual band and quad band have no set restrictions. Therefore, it is essential to check with the cell phone manufacturer for its features. In the US, you must possess a GSM 850 or 1900 to make it functional.

Re-fill

In the event that you run out of load, there are several ways to re-charge it. The most convenient way is to have it charged in your credit card account especially if you are in a place where store is unavailable. However, you can also avail of it from any pharmacy, convenience store, gas stations, and the likes, in case you run out of it while outside your home.

Expiry

The account will definitely expire if left without load between 3 - 12 months. Therefore, do not forget to put some credits even if you do not intend to use it that long. Maintain a minimum amount just to keep an activated status.

Regardless of the phone company, you need to strictly follow its guidelines to ensure maximum utilization. Although this is just a chip, bear in mind that this houses sensitive information.

Motorola i335 - This phone has the sleek candy bar body, making it much less bulky in than previous models, yet it remains quite durable. This phone does not have a camera but it has all the Nextel push-to-talk capabilities. Very basic, but if basic is all you need, then this is a great phone.

Samsung Knack SCH-U310 - This phone does not sell itself out to all the flashy features available on today's market. Rather it sticks to great phone call quality and includes standard features like voice dialing. It also features up to 270 minute talk time. No features on here that will blow your friends away, but it will give you reliable call quality every day. And you can get tons of cellular accessories with it.

LG Flare LX175 - This is a basic flip phone that features voice dialing, speakerphone and Bluetooth capable. This design is not going to grab anyone's attention but it is a slim, compact phone. This phone features great LG accessories, too!

Nokia 2610 - This is an exceptional basic phone largely because it is user friendly and it has a tremendous battery life. This is an very basic phone in look and features. But the call quality is strong and the phone is compact, perfect for pockets and purses.

Sometimes less is more. It can be hard to see that sometimes with all the incredible gadgets on the market today. But honestly, if you need a phone to make phones and nothing more, why make this issue more complicated. There are still plenty of quality cell phones that feature only the basics out there and having one is fine. You'll get better battery life and better call quality with a basic phone because those technologies aren't lost in the thousands of other features crammed into the phone. So if it's all about making calls then look no further than the phones above!

Fortunately, our options today are very much expanded in terms of form as well as function. Cellular accessories aren't just about charging and protecting anymore — they can look good too! Women especially have a whole range of chic cellphone accessories at their fingertips, diverse enough to accommodate every style. Let's explore some of today's most stylish accessories.

Cell Phone Chargers

Even today, a lot of cell phone users assume that chargers are only built to get the job done, but this is simply not the case — just look at the Solio Mono Emergency Hybrid Charger. This coveted charger acts as futuristic as it looks, as it is able to harness energy from the sun to charge a variety of portable devices, including cell phones, MP3 players, and even GPS devices. Reusable cell phone chargers are also very popular, as they can provide you with as many as 900 minutes of extra airtime without requiring an outlet. You can also find chargers in a variety of colors, including a chic white Samsung wall charger. Of course, if you're simply shopping for a plain black LG wall charger or Sony Ericsson wall charger, those continue to be readily available.

Headsets

For the past couple of years, wireless Bluetooth headsets have redefined what cell phone users thought they knew about compactness and style. These neat devices are generally small enough to fit over a single ear, and their designs get more sleek and modern by the day. Although most Bluetooth wireless headsets come in this over-the-ear style, you can find other shapes as well, including more conventional headsets with bands that go behind or over the head. Best of all, the price of Bluetooth headsets has fallen dramatically. A couple of years ago, you really had to search to find a cheap Bluetooth headset, but as the technology becomes more widespread, so do the deals!

Holsters, Covers, & Sleeves

Given how much we've come to rely on our cell phones, it's easy to understand why some cellphone accessories are designed specifically to keep them safe. Cell phone cases are manufactured by some of the big companies including Motorola, LG, and Samsung, as well as fashion brands like Nine West. They are available in every material from rubber to leather to fabric, and pretty much every color of the rainbow. Plus, cell phone cases come in different shapes to accommodate your needs, whether you desire optimum protection, easy access, or some combination of the two.

No matter what cellphone accessories you're looking for, you can browse online to find a chic, affordable item to fit your needs.

You see, many wireless companies like to "lock" their phones so that, unfortunately, they can't work with SIM cards from another. Unlocking your phone means to reverse this programming so that it will work with any SIM card, from any carrier. This means that you will be able to put any SIM card into any GSM phone - or vice-versa - and it will work. Thus, when switching carriers, you simply insert the new SIM card, from your new carrier, into your existing phone, and that's it, with no account set-up or registration on your part!

You see, there exists a unique electronic number for each and every phone, and it is used by your carrier to identify your account. Through this identifying number, the carrier knows that a certain phone is yours and is able to route calls to you. But GSM cell phones are not directly linked to their owners, where the phone itself contains an identifying serial number. Instead, GSM phones contain a removable Subscriber Information Module card, or SIM card, that holds the serial number.

Now there are many kinds of cellular accessories and technologies in the world, with different protocols and standards, and two of them are GSM and CDMA. Now all else being equal, it shouldn't matter much in terms of your call itself, with such issues as clarity and coverage. However, if you want to switch providers, it can make quite a difference in terms of your convenience, unless you don't mind throwing away your handset (which you really should recycle instead!).

So you see, more than carrying cases or belt clips, unlocking your GSM cell phone is the one true must-have accessory. After all, what is it that cellular accessories do, anyway? They help you use your cell phone better somehow, enhancing your experience of the device. Unlocking your phone is not a physical accessory, but it definitely enhances your use of your cell phone, making it possible to switch carriers while keeping the same phone! That's a great accessory but remember to look at all options including Audiovox accessories, as all have great qualities.