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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
成都旺小宝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When a call comes in, if the ringing signal has been answered before the previous number signal appears, then the number signal will stop transmitting, which will cause the phone number answered this time to be missing

Method used

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  • Fixed telephone terminal emergency call ringing system and method
  • Fixed telephone terminal emergency call ringing system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, the emergency ringing system for a fixed-line terminal provided in this embodiment includes a display module, a horn, and a connected ringing oscillating signal generating module and a coupling circuit; the ringing oscillating signal generating module generates a ringing After the oscillating signal is stepped down by a coupling circuit; it is characterized in that it also includes: a rectification circuit, an MCU and a system motherboard; the MCU includes a communication module and a decoding module and a signal conversion module connected to the communication module; the decoding module is used for decoding The ptsn signal is used to obtain the caller number signal; the rectification circuit is used to rectify the ringing oscillating signal after the coupling circuit is stepped down to obtain a ringing square wave signal; the signal conversion module is used to convert the ringing square wave signal into a ringing signal ring digital signal;...

Embodiment 2

[0045] Such as figure 2 As shown, a method for ringing an emergency call at a fixed-line terminal provided in this embodiment includes:

[0046] Incoming calls from fixed-line terminals;

[0047] The decoding module decodes the ptsn signal to obtain the caller number signal;

[0048] The ringing oscillating signal generating module generates the ringing oscillating signal;

[0049] The coupling circuit depressurizes the ringing oscillating signal;

[0050] The rectification circuit rectifies the reduced ringing oscillating signal to obtain a ringing square wave signal;

[0051] The signal conversion module converts the ringing square wave signal into a ringing digital signal;

[0052] The communication module transmits the incoming call number signal and the ringing square wave signal to the system main board;

[0053] The system board judges whether to receive the caller number signal and the ringing square wave signal within the preset time threshold; when receiving th...

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Abstract

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.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a fixed-line terminal emergency call ringing system and method. Background technique [0002] At present, the ringing signal source of fixed-line calls is divided into phone number and ringing signal. When a call comes in, the time sequence of ringing signal and number signal detected by the phone is divided into two situations: [0003] In the first case, the ringing signal precedes the previous number signal, and the number signal appears at least 2 seconds later than the ringing signal. [0004] In the second case, the number signal precedes the ring signal, and the ring signal appears at least 2 seconds later than the number signal. [0005] Then there is a problem with the traditional fixed line: [0006] When a call comes in, if the ring signal has been answered before the previous number signal appears, then the number signal will stop transmitting, which will resu...

Claims

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Application Information

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IPC IPC(8): H04M1/57H04M1/247H04M19/04
CPCH04M1/57H04M1/247H04M19/04
Inventor 任杰刘博学
Owner 成都旺小宝科技有限公司
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