LIDB
Encyclopedia
LIDB is an acronym for Line Information DataBase, which is used by traditional telephone
companies to store and retrieve Caller ID
records. Local phone switches, also known as Class 5 switches
, use SS7 signaling protocol to query these centralized databases and pass this information during call set up.
Telephone
The telephone , colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other...
companies to store and retrieve Caller ID
Caller ID
Caller ID , also called calling line identification or calling number identification or Calling Line Identification Presentation , is a telephone service, available in analog and digital phone systems and most Voice over Internet Protocol applications, that transmits a caller's number to...
records. Local phone switches, also known as Class 5 switches
Class 5 telephone switches
A Class 5 telephone switch is a telephone switch or telephone exchange in the Public Switched Telephone Network located at the local telephone company's central office, directly serving subscribers. Class 5 switch services include basic dial-tone, calling features, and additional digital and data...
, use SS7 signaling protocol to query these centralized databases and pass this information during call set up.