CN103188363B

CN103188363B - The PSTN power-off survival system of IP phone

Info

Publication number: CN103188363B
Application number: CN201110460650.0A
Authority: CN
Inventors: 袁晓辉; 丛远建
Original assignee: BEIJING DATANG GAOHONG DATA NETWORK TECHNOLOGY Co Ltd
Current assignee: BEIJING DATANG GAOHONG DATA NETWORK TECHNOLOGY Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2016-08-10
Anticipated expiration: 2031-12-31
Also published as: CN103188363A

Abstract

The invention discloses the PSTN power-off survival system of a kind of IP phone, arranging IP phone circuit module, PSTN phone circuit module and switch control logic circuit module in IP phone, switch control logic circuit module includes switch element and hook switch control signal generation unit；The Keyboard interface end of IP phone circuit module, Handset interface end, IP/PSTN interface end interface end corresponding with switch element respectively is connected, and the Hook interface end of IP phone circuit module and PSTN phone circuit module is connected with the hook switch corresponding interface end of control signal generation unit respectively；The Keyboard interface end of PSTN phone circuit module, Handset interface end interface end corresponding with switch element is connected.When external power source disconnects, switch control logic circuit module controls the hardware effort that PSTN phone circuit module is corresponding, to ensure the proper communication of user.

Description

The PSTN power-off survival system of IP phone

Technical field

The present invention relates to a kind of PSTN power-off survival system being applied in IP phone, belong to mechanics of communication neck Territory.

Background technology

Along with the development of network technology, voice/video terminal based on IP technology is applied to more and more widely Numerous industries and occasion, and have boundless expansion prospect.As ip voice/video terminal Typical Representative product, IP phone has merged multinomial new technique such as intelligence system, HD video, POE and wireless Access；Meanwhile, IP phone has good performance in terms of the economy and compatibility of application equally, Such as the compatibility to the analog station of traditional PSTN mode, has become terminal unit developer and integrator the most One of key technology paid close attention to.

Some producer has been proposed the bimodulus words of compatible two kinds of telephone network patterns of IP and PSTN the most in the industry Machine, user can realize the communication requirement of two kinds of heterogeneous networks on a phone.But this kind of phone is to PSTN The support of pattern is essentially all trunking traffic pattern based on FXO interface, so that rely on external power source The power supply of (or battery), self does not possess power-off survival function, and this needs for there being power-off survival emergency communication Seem helpless for the user asked.

Summary of the invention

In view of the foregoing, it is an object of the invention to provide the PSTN power-off survival system of a kind of IP phone, Any switching laws of IP/PSTN network can either be realized on a phone, possess again PSTN power-off survival merit Can, it is possible in the case of external power source power-off, ensure normal communication.

For achieving the above object, the present invention is by the following technical solutions:

A kind of PSTN power-off survival system of IP phone, phone is provided with IP/PSTN switching key, in IP phone arranges IP phone circuit module, PSTN phone circuit module and switch control logic circuit module, This switch control logic circuit module includes switch element and hook switch control signal generation unit；

The Keyboard interface end of this IP phone circuit module, Handset interface end, IP/PSTN interface End interface end corresponding with this switch element respectively is connected, the Hook interface end of this IP phone circuit module It is connected with this hook switch corresponding interface end of control signal generation unit；

The Keyboard interface end of this PSTN phone circuit module, Handset interface end and this switch element Corresponding interface end is connected, the Hook interface end of this PSTN phone circuit module and this hook switch control signal The corresponding interface end of generation unit is connected.

The Power interface end of described IP phone circuit module and described switch control logic circuit module Power interface end is connected, and these two Power interface end are all connected with external power source.

The Line interface end of described PSTN phone circuit module and described switch control logic circuit module Line interface end is connected, and these two Line interface end are all connected with analog station interface circuit.

The corresponding interface end of described switch element is also connected with IP phone keyboard and IP telephone handle interface end.

During external power source normal power supply, described IP phone circuit module is opened to described by IP/PSTN interface Close unit and send switch-over control signal, after described switch element receives this switch-over control signal, control institute's network selection Hardware corresponding to network pattern is started working.

Described IP/PSTN switching key triggers described switch-over control signal, and high level is IP network pattern, Low level is PSTN network pattern.

When external power source disconnects, it is hard that described switch element controls corresponding to described PSTN phone circuit module Part is started working.

Described switch control logic circuit module is powered by described analog station interface circuit.

It is an advantage of the current invention that:

1, the present invention is used can to realize any switching laws of IP/PSTN network on an IP phone；

2, system is achieved without software auxiliary by hardware completely；

3, IP phone stable performance, it is possible to meet user well and escape in the case of power-off to PSTN Network schemer, to ensure normal communication.

Accompanying drawing explanation

Fig. 1 is the structural representation of the PSTN power-off survival system of the IP phone of the present invention.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is further detailed explanation.

Fig. 1 is the structural representation of the PSTN power-off survival system of the IP phone of the present invention.As it can be seen, Being provided with PSTN power-off survival system in IP phone, this system includes IP phone circuit module 1, PSTN Phone circuit module 2, switch control logic circuit module 3, switch control logic circuit module 3 includes again Switch element 4 and hook switch control signal generation unit 5, this hook switch control signal generation unit 5 is used for producing Hook switch control signal.Wherein, the Keyboard interface end of IP phone circuit module 1, Handset interface End and IP/PSTN interface end interface end corresponding with switch element 4 respectively are connected, IP phone circuit module The Hook interface end of 1 is connected with the corresponding interface end of hook switch control signal generation unit 5, IP phone electricity The Power interface end of road module 1 is connected with the Power interface end of switch control logic circuit module 3, And these two Power interface end are all connected with external power source；The Keyboard of PSTN phone circuit module 2 Interface end, Handset interface end interface end corresponding with switch element 4 is connected, PSTN phone circuit mould The Hook interface end of block 2 is connected with the corresponding interface end of hook switch control signal generation unit 5, and PSTN talks about The Line interface end of login module 2 is connected with the Line interface end of switch control logic circuit module 3, And these two Line interface end are all connected with analog station interface circuit.The corresponding interface of switch element 4 End is also connected with IP phone keyboard and IP telephone handle interface end, and hook switch control signal generation unit 5 is also Being connected with the hook switch control signal input of IP phone, hook switch control signal is used for controlling phone break-make.

Use the IP phone being provided with PSTN power-off survival system of the present invention can realize IP/PSTN network Any switching laws, i.e. user can select to use IP network pattern or PSTN network pattern communicates, this Time, external power source needs normal power supply, and IP phone circuit module 1 and switch control logic circuit module 3 Rely on external power source powered operation.When being intended to handover network pattern, IP phone circuit module 1 is passed through IP/PSTN interface sends switch-over control signal to the switch element 4 of switch control logic circuit module 3, opens After pass unit 4 receives this switch-over control signal, the hardware controlling selected network pattern corresponding is started working, with Time export the corresponding keyboard of this selected network pattern, the keyboard handle interface of handle signal to IP phone, (such as selected network pattern is IP network pattern, then IP phone circuit module 1 can be by its Keyboard Interface end and Handset interface end if switch element 4 connects switch dish, telephone handle output keyboard and Handle signal), hereafter, the operation of the keyboard handle of IP phone is all triggered selected network pattern corresponding Hardware be operated.

Such as, current IP phone works in IP network pattern, PSTN network pattern to be switched to, As long as " IP/PSTN switching " button pressed on IP phone, IP phone circuit module 1 is just single to switch Unit 4 sends switch-over control signal (this switching control letter being switched to PSTN network pattern by IP network pattern Number by high/low level triggers, high level is IP network pattern, and low level is PSTN network pattern), After switch element 4 receives this switch-over control signal, control the hardware that PSTN phone circuit module 2 is corresponding Start working, and the hardware controlling IP phone circuit module 1 corresponding quits work.

When external power source disconnects, switch control logic circuit module 3 can be supplied by analog station interface circuit Electricity, now, switch element 4 acquiescence is switched to PSTN network pattern, i.e. PSTN phone circuit module 2 phase Corresponding hardware keeps duty, and IP phone achieves PSTN power-off survival function.

The present invention by arrange in IP phone by IP phone circuit module, PSTN phone circuit module with And switch control logic circuit module composition PSTN power-off survival system, it is possible to realize IP network with Any switching laws of PSTN network, simultaneously under outside power off situation, it is possible to achieve PSTN power-off is escaped Raw function is to ensure the proper communication of user.

The above is presently preferred embodiments of the present invention and the know-why used thereof, for the skill of this area For art personnel, without departing from the spirit and scope of the present invention, any based on the technology of the present invention side Equivalent transformation on the basis of case, simple replacement etc. obviously change, belong to scope it In.

Claims

1. a PSTN power-off survival system for IP phone, phone is provided with IP/PSTN switching key, It is characterized in that: IP phone circuit module, PSTN phone circuit module and switching are set in IP phone Control logic circuit module, this switch control logic circuit module includes that switch element and hook switch control signal are produced Raw unit；

The Keyboard interface end of this PSTN phone circuit module, Handset interface end and this switch element Corresponding interface end is connected, the Hook interface end of this PSTN phone circuit module and this hook switch control signal The corresponding interface end of generation unit is connected；

2. PSTN power-off survival system as claimed in claim 1, it is characterised in that described PSTN talks about The Line interface end of login module is connected with the Line interface end of described switch control logic circuit module Connect, and these two Line interface end are all connected with analog station interface circuit.

3. PSTN power-off survival system as claimed in claim 2, it is characterised in that described switch list The corresponding interface end of unit is also connected with IP phone keyboard and IP telephone handle interface end.

4. PSTN power-off survival system as claimed in claim 3, it is characterised in that external power source is just When often powering, described IP phone circuit module sends switching by IP/PSTN interface to described switch element Control signal, after described switch element receives this switch-over control signal, controls corresponding hard of selected network pattern Part is started working.

5. PSTN power-off survival system as claimed in claim 4, it is characterised in that described IP/PSTN Switching key triggers described switch-over control signal, and high level is IP network pattern, and low level is PSTN net Network pattern.

6. PSTN power-off survival system as claimed in claim 3, it is characterised in that external power source breaks When opening, the hardware that described switch element controls corresponding to described PSTN phone circuit module is started working.

7. PSTN power-off survival system as claimed in claim 6, it is characterised in that described switching control Application of logic circuit module processed is powered by described analog station interface circuit.