A SIM (Subscriber Identity Module) card is a type of interface card that is found in most modern cell phones and contains the user’s account information as well as some types of media, such as contacts, pictures, and sometimes ringtones. A SIM card contains an ICCID, or Integrated Circuit Card ID, number that identifies the …
What is Ground Start? Ground Start or GST is a signaling technique for telephony from a terminal, or a subscriber local loop, to a telephone exchange in which a party gets a dial tone by momentarily grounding one side of a (telephone) circuit. The Ring side of a wire pair is usually the side that …
To connect Bluetooth devices, the most important to consider is that you have the right device to connect to the computer or cell phone. While most Bluetooth devices are able to sync with all different types of hardware, some of specific and therefore, before buying, make sure that what you are buying will work with …
Loop start is a a signaling technique in which a party gets a dial tone by closing (shorting) a DC current loop. In a loop start signaling system, the electrical loop between your telephone and your central office (CO) is normally open. When you pick up the telephone handset, it causes a circuit to be …
NEBS (Network Equipment-Building System) is a standard for telephony equipment. NEBS was developed in the 1970's by Bell Labs (now Telcordia). Many equipment vendors build their equipment to NEBS standards, even when they do not intend for their equipment to be placed in a Central Office. Equipment vendors do this because compliance with the NEBS …
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 …
TTY/TDD stands for a group of telecommunication devices that make it easier for deaf and/or mute people to talk over telephone lines. TTY stands for telephone typewriter, teletypewriter or text phone. TDD stands for Telecommunications Device for the Deaf. Usually these devices are all categorized under TTY/TDD. Sometimes TTY means manual devices such as typewriters, …
Cell phone cloning refers to the act of copying the identity of one mobile telephone to another. This is usually done to make fraudulent telephone calls. The bill for the calls go to the legitimate subscriber. This made cloning very popular in areas with large immigrant populations, where the cost to “call home” was very …
Before activating a new Verizon Wireless cell phone, it is important that you backup your phone numbers. By making the switch from an older phone to a newer one, you'll lose access to the older one. Therefore, transfer your numbers either by bringing it into a Verizon Wireless store or use the Backup Assistant. This …
An InterLATA or long distance call refers to a telephone call made between two separate LATAs. LATA (Local Access and Transport Area) is a term used to describe the area that a local telephone company manages. Markets, rather than geographical areas, define LATAs. Therefore, LATAs can cross over state borders and use multiple area codes. …