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Building Auto- Voice-Data-Video (VDV) System Control Devices and Applications with Complete Solutions!!

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Voice-Data-Video (VDV) systems include: - ANSWER-Telephony, data network, and closed-circuit television (CCTV) systems. Public Switched Telephone Network (PSTN) - ANSWER-A network of telephone exchanges that can be connected together to make a continuous circuit for each telephone call. Private Branch Exchanges (PBXs) - ANSWER-connect in-house telephones together within a private network and manage the telephones' access to the Public Switched Telephone Network (PSTN). Voice over IP (VoIP) systems - ANSWER-use special telephones that convert voice audio into packets of digital information to be transmitted over the internet. The simplest CCTV system consists of: - ANSWER-just a camera and a monitor, although most systems also include a recording device.

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  • building auto voice data video vdv system contr
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