Explore: Private Branch Exchanges

private branch exchanges, but many combinations (hybrid telephone systems) exist. A key telephone system was originally distinguished from a private branch

were employed by the public networks, operators were required at private branch exchanges (PBX) to answer incoming calls and connect them to the correct

tone in the UK) is a telephony signal sent by a telephone exchange or private branch exchange (PBX) to a terminating device, such as a telephone, when

to a specified area. These lines were most often connected to private branch exchanges in large businesses. WATS lines were the basis for the first direct-dial

For corporate or enterprise applications, a private telephone exchange is termed a private branch exchange (PBX), which connects to the public switched

Night service in telephony is a feature of private branch exchanges and other business telephone systems, whereby for a set period during the day (usually

enterprise or organizational campus. Such systems may be supported by a private branch exchange (PBX), which provides a central access point to the PSTN and also

ISDN based signaling protocol for signaling between private branch exchanges (PBXs) in a private integrated services network (PISN). It makes use of the

Communications, Inc. is a corporation that specialized in premises-based private branch exchanges, i.e., business telephone systems. Vertical Communications changed

or xDSL-splitters. This includes key telephone systems and most private branch exchanges. Excluded from the CPE category are overvoltage protection equipment