SENDER INFORMATION PROCESSOR OF WIRELESS LOCAL LOOP TERMINAL

摘要

PURPOSE: A sender information processor of a wireless local loop(WLL) terminal is provided to perform a selective response to a call connection request by displaying sender information to various subscriber terminals. CONSTITUTION: A sender information processor of a WLL terminal comprises a transmission and reception control part(110) which extracts information of a sender, and modulates the extracted information into a rectangular wave of 2200Hz indicating '0' or 1200Hz indicating '1'. A filter(120) filters the rectangular wave pulse to extract a sinusoidal wave having only an original frequency component. An attenuator(130) attenuates the sinusoidal wave from the filter(120) into a predetermined level, and a switch(140) is switched according to a control signal applied from the transmission and reception control part(110). The switch(140) transfers the sinusoidal wave pulse from the attenuator(130) to a subscriber terminal(200) through a line interface(160) so that the sender information is displayed at the subscriber terminal(200). A subscriber line audio processing part(150) processes a voice signal transmitted and received to and from the subscriber terminal(200) so that a conversation by telephone is maintained.