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Prepare a 2- to
3-page paper describing the telecommunication systems used at your workplace.
Use short
answers to explain the difference between:
Rotary and Dual Tone Multi-frequency (DTMF)
Wide Area Telecommunications Service (WATS) and leased lines
Private Branch eXchange (PBX) and Centrex
The
layers of the International Organization for Standardization-Open Systems
Interconnection (ISO-OSI) model
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