MULTICHANNEL-TYPE TERMINAL OF WLL SYSTEM

摘要

PURPOSE: A multichannel-type terminal of a WLL(Wireless Local Loop) system is provided to use a voice 8 line as an extension line function, by admitting the voice 8 line to the terminal. CONSTITUTION: A multichannel-type terminal of a WLL(Wireless Local Loop) system comprises: a modem and an RF(Radio Frequency) section(1) composed of RF for transmitting/receiving an electric wave to the modem, which performs a radio connection standard of a wide band, and to a radio interval; a first time switch(2) for transmitting/receiving a subscriber's data with the modem; a second time switch(3) for switching the subscriber's data to communicate between subscribers, when performing an extension function; an ADPCM/CODEC(Adaptive Differential Pulse Code Modulation/Coder-Decoder) section(4) for performing a function of converting/reverse-converting the subscriber's analog voice data into PCW/ADPCM(Adaptive Delta Pulse Code Modulation); a subscriber's interface section(5) for detecting a phone state and a telephoning state of the subscriber; a DTMF(Dual Tone Multi Frequency) analyzer/comparator(6) for sending requiring information to a CPU(Central Processing Unit)(7), by analyzing/comparing a DTMF signal from the subscriber's interface section(5); the CPU(7) for controlling each section; and a ring/tone generator(8) for sending a ring/tone to the subscriber interface section(5), by generating the ring/tone by control of the CPU(7).