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Plain Old Telephone System

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Plain Old Telephone System

Public Switched Telephone Network
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References in periodicals archive
Each brigade level headquarters received 25 (digital) Cisco 7940 VoIP phones and another 24 analogue plain old telephone system phones for that building and the surrounding area.
Communicating for SASO employs cutting edge solutions
In the "plain old telephone system" (POTS), once a dedicated circuit connects the call, your voice is transmitted by a 4 kilohertz analog wave form via a process known as frequency division multiplexing.
The lazy person's guide voice telephony-Part I
And it used to be that you had one choice of technology: The plain old telephone system (POTS).
CLICK IT: What to put in that space you've made
Because the plain old telephone system (POTS) uses balanced, differential cabling, transformers must maintain the balance.
Wound component test takes a new turn: Can your transformer tester meet today's high-frequency requirements? (Component Test)
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