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Telephone capable of transferring calls

A telephone and switching technology, which is applied in the field of electrical communication, can solve the problems of unstable and inconvenient switching of incoming calls in communication terminals, achieve the function of convenient switching of incoming calls, convenient operation, and solve the problems of unstable switching of incoming calls Effect

Active Publication Date: 2013-06-05
SHANDONG KAER ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned existing communication terminals such as unstable and inconvenient transfer of incoming calls, and provide a telephone with a reasonable structure that can quickly, stably and conveniently transfer incoming calls

Method used

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  • Telephone capable of transferring calls
  • Telephone capable of transferring calls
  • Telephone capable of transferring calls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] figure 1 It is a block diagram of the present invention. from figure 1 It can be seen from the figure that a telephone that can transfer incoming calls includes a housing, which is composed of a memory, an incoming call detection circuit, an MCU control circuit (hereinafter referred to as MCU), a control circuit for picking up and hanging up, and a DTMF signal transmission circuit. circuit board, liquid crystal display circuit board and keyboard scanning circuit board, MCU is connected to the memory, incoming call detection circuit, control off-hook circuit, DTMF signal sending circuit, liquid crystal display circuit and keyboard scanning circuit through pins; external line interface connected to PSTN line In the casing, it is connected with the incoming call detection circuit, the hook-on-hook control circuit, and the DTMF signal sending circuit. The MCU saves all the setting information of the user in the memory, judges whether the off-hook is to answer or make a ca...

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PUM

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Abstract

The invention relates to a telephone capable of transferring calls, which comprises a shell, wherein a circuit main board, a liquid crystal display circuit board and a keyboard scanning circuit board are installed in the shell, wherein the circuit main board comprises a memory, a call detection circuit, a micro control unit (MCU) control circuit, an on-hook control circuit and a dual-tone multi-frequency (DTMF) signal transmission circuit; the MCU control circuit is connected with the memory, the call detection circuit, the on-hook control circuit, the DTMF signal transmission circuit, a liquid crystal display circuit and a keyboard scanning circuit through pins; and an external interface connected in a public switched telephone network (PSTN) line is connected with the call detection circuit, the on-hook control circuit and the DTMF signal transmission circuit in the shell. A 'transfer' key, a 'return' key and a plurality of one-key transfer shortcut keys for transferring calls are specially arranged on a shell panel. Telephone parameters can be set to be matched with the fixed-line switcher used locally, thereby providing a quick, stable and convenient call transferring functionfor users. The invention overcomes the defects of unstable and inconvenient call transfer and the like of the existing communication terminal.

Description

technical field [0001] The invention relates to electric communication technology, in particular to a telephone capable of transferring incoming calls. It can help users transfer incoming calls quickly, stably and conveniently. Background technique [0002] At present, the switches used by mainstream telecommunications operators include Huawei, ZTE, Lucent, etc., and the fixed network switches all have the call forwarding function. : The calling user calls the called user, and the called user flashes the hook switch after picking up the hook. The called party sends a dial tone to prompt the user to dial. After receiving the dial tone, the called party sends the communication number of the third party to be transferred to the exchange. The connected third party is connected; after the called user sends the communication number of the third party to be transferred to the exchange, if the third party is busy, the called user flashes the hook switch again, and the exchange rec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/23H04M1/725H04M1/72466H04M1/72484
Inventor 潘大伟薛冬娇傅晓亮王洪伟
Owner SHANDONG KAER ELECTRIC