Fixed telephone terminal emergency call ringing system and method
A terminal and incoming call technology, applied in the field of communication, can solve problems such as missing phone numbers
Active Publication Date: 2020-03-13
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AI-Extracted Technical Summary
Problems solved by technology
The invention discloses a fixed telephone terminal emergency call ringing system and method. The system comprises a display module, a loudspeaker, and a ringing oscillation signal generation module and a coupling circuit which are connected with each other; the system also comprises a rectification circuit, an MCU, and a system mainboard. The MCU comprises a communication module, a decoding moduleand a signal conversion module, wherein the decoding module and the signal conversion module are connected with the communication module. According to the invention, the MCU is adopted to decode andconvert the incoming call number signal and the ringing signal, and the system mainboard only drives the display module and the loudspeaker when the incoming call number signal and the ringing signalexist at the same time, so that the problem that the ringing signal answers a call when the previous number signal does not exist and thus the phone number is lost is solved.
Current supply arrangementsCalling susbscriber number recording/indication +1
Embedded systemLoudspeaker +4
- Experimental program(2)
Description & Claims & Application Information
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