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    • MIN (Mobile Identification Number)

      MIN (Mobile Identification Number)

      The MIN (Mobile Identification Number) is a number that uniquely identifies a mobile telephone subscriber. MINs are 34-bits in length. The first 10 bits are sometimes known as MIN2, while the last 24 bits are referred to as MIN1. Together they are simply known as the MIN. In the United States, the MIN is derived

    • How Do Prepaid Phone Cards Work?

      How Do Prepaid Phone Cards Work?

      As more and more people switch to cell phones for communication, many people are opting to use prepaid phone cards rather than signing up for a contract with a service provider. Prepaid phone cards allow users to purchase temporary plans ahead of time and use their minutes from wherever they are without having to worry

    • Who Invented the Cell Phone?

      Who Invented the Cell Phone?

      Dr. Martin Cooper is the person credited with both inventing the modern cell phone as well as making the first cell phone call in New York City, New York in April 1973. A related invention is the cave radio phone invented by Nathan Stubblefield who was awarded a patent for the idea in the early

    • Cell Phone Jammer

      Cell Phone Jammer

      With so many people using cell phones these days, one of the devices that have popped- up on the market are cell phone jammers. Be advised that cell phone jammers are usually black market devices, since using them is illegal in most municipalities. However, for those that are tired of hearing endless cell phone conversations

    • GSM (Global System for Mobile Communications)

      GSM (Global System for Mobile Communications)

      The Global System for Mobile Communications (GSM) system is a widely deployed digital mobile telephony standard that is deployed throughout Europe and other locations around the globe. The GSM standard leverages a variant of TDMA (time division multiple access) and is the most deployed of the three competing legacy digital wireless technologies on the market

    • Forward and Reverse Channels

      Forward and Reverse Channels

      Forward and reverse channels refer to a number of frequencies that are used by a telecommunications broadcast system in order for a telephone tower and a cellular telephone to communicate with each other. A forward channel refers to the frequencies used by a telephone tower to communicate with all nearby cellular phones. Contrastingly, a reverse

    • What is Tethering?

      What is Tethering?

      Tethering means using a mobile phone (or any other Internet-capable device) as a modem for a laptop or other Internet capable units. A phone that can access the Internet is connected to the other device with a USB cable or Bluetooth connection. If a mobile plan allows the phone to be tethered, you can save

    • Prepaid Cell Phones vs Contract Phones

      Prepaid Cell Phones vs Contract Phones

      Prepaid cell phones are mobile phones that are not associated with a long term contract and, therefore, do not incur the overage charges and late fees associate with contract plans. Prepaid cell phones are paid before the mobile service is activated on a monthly or “pay-as-you-go” basis and are deactivated when the service term expires

    • How to Change my PIN and PUK

      How to Change my PIN and PUK

      A PIN, or Personal Identification Number, is a number that is used on some SIM cards to prevent unauthorized use of the cell phone it is located in. PINs are not used by all SIM cards and may need to be setup before they can be used. A PIN is generally between 4 and 8

    • How to Find an IMEI

      How to Find an IMEI

      An IMEI, or International Mobile Equipment Identity, number is a number associated with a specific cell phone and can be used by authorities in a wide variety of countries to blacklist stolen cell phones, making them unusable to the thief, even if he/she replaces the phone’s SIM card. An IMEI number should not be confused

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