The operation of a cell phone is fairly complicated but at a rudimentary level it can be understood as a telephone the service for which is provided via a SIM card. Most mobile telephony systems use the Global System for Mobile Communications (GSM), and the SIM card has programming that allows it to connect to the nearest GSM cell for uninterrupted network access. These cells are controlled by a network provider who charges for the service offered. As can be understood, providers vary from region to geographic region and so do the costs associated with cellular service.
In many countries, the instruments are usually unlocked phones which give the consumers the choice of selecting a provider as per their financial ability. Sadly, the competitive market has created a consumer-unfriendly situation where mobile phone manufacturers tie up with a particular provider so that the phone is now SIM-locked, i.e. it only works with a particular provider’s SIM card. In such a scenario the consumer who wants to get a phone of his/her choice is stuck with an uncomfortably priced calling plan, not to mention long-term commitments and hidden fees. In other words, he/she is left wondering whether to go for a preferred phone or a preferred provider with a friendly pricing plan.
Unlocked Phones are a convenient choice, although a rarity especially with the higher-end brands. But consumers seeking to use different providers do have solutions available to them, although not entirely risk-free. One of the safest options for people using phones supplied by the network provider – it is assumable that such phones are locked to work only with that provider’s SIM cards – is to get the phone unlocked by the provider after the minimum stipulated time. Depending on the provider, this may be free or involve some minor charge. More enterprising customers have employed other means of getting the phone unlocked. Such methods generally involve private software developers using their own code to override the software-based locking mechanism.
This technique is not exactly foolproof, and may not work on some phones where the providers have employed more sophisticated SIM locking tools. One such tool is the unlocking box which is needed when phones are locked to SIM cards are locked with a random number key embedded into the firmware. The obvious preference for unlocked cell phones has spawned a range of facilities that cater to customers wanting such phones. Where conventional software unlock methods don’t work, people manage to get unlocked phones through second-hand dealers locally or over the internet. The fact that many countries prohibit the sale of locked phones while others see much greater sales of unlocked cell phones makes them viable export sources to supply unlocked phones to countries where providers employ SIM locking methods. From the trends seen currently, as long as locking methods are devised and employed, innovative minds will always come with a way to beat such devices and make the most of a demand for unlocked cell phones.
Eman P is the author of this article on Unlocked Phones.
Find more information about Unlocked Cell Phones here.
Author: Eman P
Article Source: EzineArticles.com
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