Explore BrainMass
Share

Explore BrainMass

    Networking Concepts

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Use short answers to explain the difference between:

    o Rotary and Dual Tone Multi-frequency (DTMF)
    o Wide Area Telecommunications Service (WATS) and leased lines
    o Private Branch eXchange (PBX) and Centrex
    o The layers of the International Organization for Standardization-Open Systems Interconnection (ISO-OSI) model

    © BrainMass Inc. brainmass.com October 10, 2019, 12:16 am ad1c9bdddf
    https://brainmass.com/computer-science/networking/networking-concepts-differences-285459

    Solution Preview

    Hi,

    Rotary signaling is a way of dialing with the use of electric pulses corresponding to the number being dialed. It is used on the older versions of telephone units. DTMF is a way of dialing with the use of different frequency tones corresponding to a number being dialed. It is now widely used in the modern telephone units.

    WATS is a telecommunication service that provides outgoing calls, incoming calls, or both to a subscribing customer. This service allows communication between stations at ...

    Solution Summary

    This posting contains answers to the given questions.

    $2.19