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A communication system is a collection of telecommunications networks, relay stations, tributary stations, and terminal equipment that can be interconnected and interoperate to form an integrated whole. Communication systems can include: Telephones, Radios, Emails, Messaging apps, Social media platforms, Satellite, Fiber optic, Microwave systems, Internet communications, Cable TV, AM and FM radio, VHF, UHF, HDTV, Shortwave, Fire, and Police.
Communication systems can also include: Public switched telephone network (PSTN): An aggregate of telephone networks operated by telephone operators locally, nationally, and regionally Intranet: A secured private connection a company uses to communicate within the organization and to limited people Voice over Internet Protocol (VoIP): Allows voice to be digitized and sent in the form of an email E-commerce: Allows buying and selling online
Communication systems engineering is the design, development, and maintenance of technology for communications. This includes: Internet systems Voicemail systems Group scheduling programs Webinars Automatic call answering and routing systems Computer networks Information technology (IT) Information security
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