Telephone set

Abstract

The invention provides a telephone set. The telephone set according to the invention comprises: a public switched telephone network interface; an off-hook and on-hook module, a ringing module and a dialing module, which are electrically connected with the public switched telephone network interface; a control module electrically connected with the off-hook and on-hook module, the ringing module and the dialing module; and a storage module and a voice module, which are electrically connected with the control module, wherein the telephone set further comprises a dialing correction module electrically connected with the control module, and when a call is initiated by the telephone set, the dialing correction module judges a return signal from a switch is an irregular dialing prompt tone, the dialing correction module sends a dialing correction request signal to the control module, and when receiving the dialing correction request signal, the control model reads a called number stored in the storage module, corrects the called number and controls to initiate recall.

Description

technical field [0001] The invention relates to a telephone set, in particular to a telephone set capable of correcting misdialed numbers. Background technique [0002] As known, when the user dials a mobile phone number using a telephone set, "0" needs to be dialed before the number for a mobile phone number outside the city, but "0" does not need to be dialed for a local mobile phone number. The usual setting of the program-controlled exchange of the existing public switched telephone network (PSTN) is that if the dialing of a mobile phone number outside the city is received without dialing "0", it will send out such as "the number you dialed is a foreign number, please dial 0” and terminate the call, such as figure 1 The situation where a user in Shanghai calls a mobile phone number in Changsha shown in ; and if a call to a local mobile phone number is received by mistakenly dialing "0", it will send out such as "Please dial the other party's mobile phone number directly...

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, it is difficult for ordinary users to intuitively identify whether the mobile phone number belongs to a local city or a foreign city from the mobile phone number.

In this case, once the situation of above-mentioned wrong dialing takes place, the user has to hang up the phone and redial the mobile phone number up to 11 digits after hearing the irregular dialing tone given by the program-controlled switchboard. Said, especially for the elderly or people with poor memory, it will be inconvenient

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