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    • TIMSI

      TIMSI

      A TIMSI, or Temporary International Mobile Subscriber Identity, number is a random number that is created from a telecommunications subscriber’s IMSI number in order to provide additional security. While an IMSI is unique to each subscriber and is a permanent number that can be used to track a subscriber or interfere with his/her services, a

    • SCM: Station Class Mark

      SCM: Station Class Mark

      The SCM (Station Class Mark) is a 4 bit number which holds three different pieces of information. Your cellular telephone transmits this information (and more) to the cell tower. Bit 1 of the SCM tells the cell tower whether your cellphone uses the older 666 channel cellular system, or the newer 832 channel cellular system.

    • Computer Telephony Integration (CTI)

      Computer Telephony Integration (CTI)

      Computer Telephony Integration (CTI) is a set of technologies for integrating and managing the communication or interaction between computers and telephone systems. CTI functionality falls into two general categories: CTI enables the computer user to control their telephone system CTI enables the telephone system to display information via the computer A user with a CTI-enabled

    • CNAM (Calling NAMe)

      CNAM (Calling NAMe)

      CNAM (“Calling NAMe”) is an Intelligent Network (IN) service that displays a caller’s name on a digital readout. It is very similar to caller ID except that both the caller’s name and the calling number are displayed on the receiving end of the phone call. This feature only works if the person or organization being

    • Text Message Shortcuts

      Text Message Shortcuts

      Most people send text messages from the very small keypads on their mobile phones, and most people who receive text message messages read them on the tiny screens of their mobile phones. Because of those considerations, and because many service providers limit text messages 160 characters in length, most people who use text messages learn

    • Call Back Security

      Call Back Security

      Call back security, also known as dial back security, is a security mechanism used to authenticate users over dialup lines. The way call back security works is the dialup user calls into the system and enters his username and password. The system then hangs up on the user and calls the user back at a

    • Tip and Ring

      Tip and Ring

      Tip and Ring are telephony slang for the two wires which make up the electrical circuit used for telephone wiring. Tip is the nickname for the electrically positive wire and Ring is the nickname for the electrically negative wire. Tip is the ground side, which is positively charged, and Ring is the battery side, which

    • 110 Block

      110 Block

      A 110 block is a punch-down block used to connect wiring for telephone systems, data network wiring, and other low-voltage wiring applications. It improves on the 66 block by supporting higher frequencies and using space more efficiently. A punch-down tool is used to force solid wire into metal slots on the 110 block. Present residences

    • How to Block Incoming Calls

      How to Block Incoming Calls

      Blocking incoming calls can sometimes be quite important for many reasons. Someone may be troubling you over the phone, harassing you, giving blank calls and you just want to avoid a specific person. A simple way to do this is to block an incoming call of a specific person. That is, whenever that person calls

    • How to Update the Blackberry OS

      How to Update the Blackberry OS

      The BlackBerry OS is deployed on mobile devices used in 91 countries across more than 500 service operators. Research In Motion (RIM) developed the operating system since 1999, which allows mobile devices to act as both digital assistants and portable media players depending on the type of device purchased. A common task that arises for

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