• Main Menu
  • Telephony

    • CLLI Codes

      CLLI Codes

      CLLI codes, or Common Language Location Identifier, pronounced “silly codes”, are codes used by telecommunication companies to identify specific industry equipment. CLLI codes are 11 characters long, may be comprised of a combination of letters and numbers, and are used by all telecommunication companies in North America. While CLLI codes were first created and used

    • Predictive Dialer Software

      Predictive Dialer Software

      Predictive dialer software is designed to automatically dial the correct number of telephone calls to match the pattern of available call center personnel. Without predictive dialing software, an outbound call center will have to wait between phone calls until another person answers the phone. This can be quite expensive in terms of lost productivity. With

    • How to Activate a TracFone

      How to Activate a TracFone

      TracFone is the 6th largest mobile network operator in the United States. It allows its customers to purchase airtime usage when they purchase phones that companies like Nokia, LG, and Motorola make. A TracFone customer has to activate the cell phone before using it. It can be activated via the TracFone website or TracFone customer

    • Numbers that Temporarily Disconnect Phone Service

      Numbers that Temporarily Disconnect Phone Service

      Many telephone companies maintain telephone numbers to which if a call is made will temporarily disconnect your telephone service for testing. If your NPA is not listed, or the listing does not cover your LATA, try common numbers such as 119 (GTD5 switches) or 511. NPA Telephone Number Geography Length of disconnection 209 999 Stockton,

    • 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

    • UMTS (Universal Mobile Telecommunications System)

      UMTS (Universal Mobile Telecommunications System)

      UMTS is an abbreviation for Universal Mobile Telecommunications System. It is one of the third-generation (3g) cell phone technologies quickly developing today. UTMS is also referred to as the 3GSM so as to emphasize the coalition between 3G technology and GSM standard. In theory, the UTMS, using W-CDMA, is supposed to be able to transfer

    • 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

    • Telephone Voltage

      Telephone Voltage

      Telephone voltage is actually related to the physical distance at which you can operate the telephone. If the voltage is high, it can signal to great distance. However, higher voltage carries certain risks. 48 V is a compromise between distance and safety. 50-52 V is used in central office common batteries, but designations and documents

    • IS-95: CDMA

      IS-95: CDMA

      IS-95 is a standard for CDMA (Code Division Multiple Access) Digital Cellular. Mobile Frequency Range Rx: 869-894; Tx: 824-849 Multiple Access Method CDMA/FDM Duplex Method FDD Number of Channels 20 (798 users per channel) Channel Spacing 1250kHz Modulation QPSK/OQPSK Channel Bit Rate 1.2288Mb How CDMA Works In a CDMA system, your encoded voice is digitized

    • Milliwatt Test Line

      Milliwatt Test Line

      A “Milliwatt (102 Type) Test Line” is a signal generated from an Access Service Provider end office to the customer’s location for the purposes of transmission measurement, that is, testing the line quality and loss of transmission. The generated signal is a 1004 Hz tone at 0 dBm, which is the equivalent of 1 milliwatt

    334 queries in 0.838 seconds.