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Overall, a basic telecommunication system consists of three main parts that are always present in some form or another: A transmitter that takes information and converts it to a signal A transmission medium , also called the physical channel, that carries the signal (e.g., the "free space channel")
A communications system or communication system is a collection of individual telecommunications networks systems, relay stations, tributary stations, and terminal equipment usually capable of interconnection and interoperation to form an integrated whole. The components of a communications system serve a common purpose, are technically ...
Business telephone systems are often broadly classified into key telephone systems and private branch exchanges, but many combinations (hybrid telephone systems) exist. A key telephone system was originally distinguished from a private branch exchange in that it did not require an operator or attendant at a switchboard to establish connections ...
Telecommunications equipment (also telecoms equipment or communications equipment) is a type of hardware which is used for the purposes of telecommunications.Since the 1990s the boundary between telecoms equipment and IT hardware has become blurred as a result of the growth of the internet and its increasing role in the transfer of telecoms data.
PBS—Portable Batch System; PC—Personal Computer; PCB—Printed Circuit Board; PCB—Process Control Block; PC DOS—Personal Computer Disc Operating System; PCI—Peripheral Component Interconnect; PCIe—PCI Express; PCI-X—PCI Extended; PCL—Printer Command Language; PCMCIA—Personal Computer Memory Card International Association; PCM ...
A telephone network is a telecommunications network that connects telephones, which allows telephone calls between two or more parties, as well as newer features such as fax and internet. The idea was revolutionized in the 1920s, as more and more people purchased telephones and used them to communicate news, ideas, and personal information. [ 1 ]
Call originator - (or calling party, caller or A-party) a person or device that initiates a telephone call by dialling a telephone number. Call waiting - a system that notifies a caller of another incoming telephone call by sounding a sound in the earpiece. Called party - (or callee or B-party) Caller; Calling party; Conference call (multi ...
Telephony (/ t ə ˈ l ɛ f ə n i / tə-LEF-ə-nee) is the field of technology involving the development, application, and deployment of telecommunications services for the purpose of electronic transmission of voice, fax, or data, between distant parties.