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Method and system for achieving incoming call filtering

An implementation method and telephone technology, applied in telephone communication, electrical components, automatic switching office, etc., can solve the problems of being unable to refuse to answer and give busy signal to the other party, unable to automatically screen incoming calls, etc.

Inactive Publication Date: 2014-01-01
北京恒通安信科技有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] The existing above-mentioned systems cannot refuse to answer and give the other party a busy tone like a mobile phone; they cannot automatically screen incoming calls based on the other party's number, and selectively activate the ringtone (giving the owner a chance to answer) or silently answer (the ringtone does not ring. answer, and ask the other party to leave a message); or give the other party a busy tone

Method used

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  • Method and system for achieving incoming call filtering
  • Method and system for achieving incoming call filtering
  • Method and system for achieving incoming call filtering

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Embodiment Construction

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] This embodiment provides an implementation method for filtering incoming calls, which is characterized in that: a virtual extension is provided, and the connected telephone line is divided into two paths, one is connected to the virtual extension, and the other is connected to a delay; the The delay device is used to ensure that the virtual extension obtains and intercepts the incoming call signal first; the virtual extension divides all incoming numbers into four categories: white list, gray list, black list, and other numbers; The following states:

[0028] a. Fully connected state: In this state, all incoming calls except from the numbers on the blacklist pass through transparently; for calls from the blacklist, you can choose not to answer or busy tone;

[0029] b. Selective connection state: in this state, you can choose not answering or busy...

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Abstract

The invention relates to a method and system for achieving incoming call filtering. The method is characterized in that a virtual extension is arranged, two paths of access telephone wires are arranged with one path connected to the virtual extension and the other to a delayer, the delayer is used for guaranteeing that the virtual extension intercepts and captures incoming call signals first, and the virtual extension classifies all caller IDs into four classes, namely a white list, a grey list, a black list and other IDs and controls a telephone line to be in a fully connected state, or in a selectively connected state, or in a call forwarding state according to the four classes of IDs. According to the method and system for achieving incoming call filtering, due to the adoption of the virtual extension technique, rejecting (the opposite side hears a busy tone), or forwarding to a voice mail, or answering and triggering a ringtone can be decided according to a strategy involved with time and the caller IDs.

Description

technical field [0001] The invention relates to the technical field of fixed telephone communication, in particular to an implementation method and system for filtering incoming calls. Background technique [0002] Some existing technologies are briefly introduced below, so as to facilitate a better understanding of the present invention by those skilled in the art. Public telephone network: a telecommunications network used by telecommunications operators to provide telephone services to the public, including public exchanges, etc.; telephone set: terminal equipment connected to the public telephone network for making and receiving calls; A device on a telephone, or a device that is integrated with a telephone, used to automatically answer incoming calls when the telephone owner does not answer the phone, and provide a device for letting the other party leave a message and recording the other party's message; enterprise-level telephone exchange system (PBX): It is used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M3/436H04M1/663
Inventor 王杰顾长富范志强
Owner 北京恒通安信科技有限公司
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