CN202524434U

CN202524434U - PSTN power-off escape system of IP phone

Info

Publication number: CN202524434U
Application number: CN2011205742368U
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: 2012-11-07
Anticipated expiration: 2021-12-31

Abstract

The utility model discloses a PSTN power-off escape system of an IP phone. An IP phone circuit module, a PSTN phone circuit module and a switching and controlling logic circuit module are arranged in the IP phone, wherein the switching and controlling logic circuit module comprises a switch unit and a hook-switch control signal generating unit; a Keyboard interface end, a Handset interface end and an IP/PSTN interface end of the IP phone circuit module are respectively connected with corresponding interface ends of the switch unit, and a Hook interface end of the IP phone circuit module and a Hook interface end of the PSTN phone circuit end are respectively connected with corresponding interface ends of the hook-switch control signal generating unit; and a Keyboard interface end and a Handset interface end of the PSTN phone circuit module are respectively connected to corresponding interface ends of the switch unit. When external power supply is cut off, the switching and controlling logic circuit controls corresponding hardware work of the PSTN phone circuit module, thereby ensuring normal communication of users.

Description

The PSTN power-off survival system of IP phone

Technical field

The utility model relates to the PSTN power-off survival system in a kind of IP of being applied to phone, belongs to communication technique field.

Background technology

Along with development of internet technology, the voice/video terminal technological based on IP is applied to numerous industries and occasion more and more widely, and boundless expansion prospect is arranged.As the typical representative products of ip voice/video terminal, the IP phone has merged multinomial new technology such as intelligence system, HD video, POE and wireless access etc.; Meanwhile, the IP phone the economy of using and compatible aspect good performance is arranged equally, the compatibility such as to the analog station of traditional PSTN mode has just become one of key technology of terminal equipment developer and integrator concern.

Present some producer has in the industry released the bimodulus phone of compatible IP and two kinds of telephone network patterns of PSTN, and the user can realize the communication requirement of two kinds of heterogeneous networks on a phone.But this type phone all is based on the trunking traffic pattern of FXO interface basically to the support of PSTN pattern; Thereby needs rely on the power supply of external power source (or battery); Self does not possess the power-off survival function, and this seems powerless for the user that power-off survival emergency communication demand is arranged.

The utility model content

In view of the foregoing; The purpose of the utility model is to provide a kind of PSTN power-off survival system of IP phone; Can either on a phone, realize any switching of IP/PSTN network, possess PSTN power-off survival function again, can under the situation of external power source outage, guarantee normal communication.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

A kind of PSTN power-off survival system of IP phone; Phone is provided with the IP/PSTN switching key; IP phone circuit module, PSTN phone circuit module and switch control logic circuit module are set in the IP phone, and this switch control logic circuit module comprises switch element and hook switch control signal generating unit;

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

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

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

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

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

During the external power source normal power supply, said IP phone circuit module is sent switch-over control signal through the IP/PSTN interface to said switch element, and after said switch element was received this switch-over control signal, control selected network pattern corresponding hardware was started working.

Said IP/PSTN switching key triggers said switch-over control signal, and high level is the IP network pattern, and low level is the PSTN network schemer.

When external power source broke off, said switch element was controlled the pairing hardware of said PSTN phone circuit module and is started working.

Said switch control logic circuit module is supplied power through said analog station interface circuit.

The advantage of the utility model is:

1, use the utility model can on an IP phone, realize any switching of IP/PSTN network;

2, to realize need not software through hardware fully auxiliary in system;

3, IP phone stable performance can be satisfied user's PSTN network schemer of escaping under the situation of outage, well to guarantee normal communication.

Description of drawings

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

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.

Fig. 1 is the structural representation of PSTN power-off survival system of the IP phone of the utility model.As shown in the figure; In the IP phone, be provided with PSTN power-off survival system; This system comprises IP phone circuit module 1, PSTN phone circuit module 2, switch control logic circuit module 3; Switch control logic circuit module 3 comprises switch element 4 and hook switch control signal generating unit 5 again, and this hook switch control signal generating unit 5 is used to produce the hook switch control signal.Wherein, The Keyboard interface end of IP phone circuit module 1, Handset interface end and IP/PSTN interface end are connected with switch element 4 corresponding interface ends respectively; The Hook interface end of IP phone circuit module 1 is connected with hook switch control signal generating unit 5 corresponding interface ends; The Power interface end of IP phone circuit module 1 is connected with the Power interface end of switch control logic circuit module 3, and these two Power interface end all are connected with external power source; The Keyboard interface end of PSTN phone circuit module 2, Handset interface end are connected with switch element 4 corresponding interface ends; The Hook interface end of PSTN phone circuit module 2 is connected with hook switch control signal generating unit 5 corresponding interface ends; The Line interface end of PSTN phone circuit module 2 is connected with the Line interface end of switch control logic circuit module 3, and these two Line interface end all are connected with the analog station interface circuit.Switch element 4 corresponding interface ends also are connected with IP phone keyboard and IP telephone handle interface end, and hook switch control signal generating unit 5 also is connected with the hook switch signal input end of IP phone, and the hook switch control signal is used to control the phone break-make.

The IP phone that use is provided with the utility model PSTN power-off survival system can be realized any switching of IP/PSTN network; Be that the user can select to use the IP network pattern or the PSTN network schemer communicates; At this moment; External power source needs normal power supply, and IP phone circuit module 1 all relies on external power source work with switch control logic circuit module 3.When desiring the handover network pattern; IP phone circuit module 1 is sent switch-over control signal through the IP/PSTN interface to the switch element 4 of switch control logic circuit module 3; After switch element 4 is received this switch-over control signal; Control selected network pattern corresponding hardware is started working; Export the corresponding keyboard of this selected network pattern, handle signal keyboard handle interface simultaneously, (such as the selected network pattern is the IP network pattern, then IP phone circuit module 1 phone keyboard, telephone handle output keyboard and the handle signal that can connect to switch element 4 through its Keyboard interface end and Handset interface end) to the IP phone; After this, the operation of the keyboard handle of IP phone is all triggered the corresponding hardware of selected network pattern and carry out work.

For example; The current IP phone works in the IP network pattern, desires to switch to the PSTN network schemer now, as long as press " IP/PSTN switching " button on the IP phone; IP phone circuit module 1 just sends to switch element 4 that (this switch-over control signal triggers through height/low level by the switch-over control signal of IP network mode switch to PSTN network schemer; High level is the IP network pattern, and low level is the PSTN network schemer), after switch element 4 is received this switch-over control signal; Control PSTN phone circuit module 2 corresponding hardware are started working, and control IP phone circuit module 1 corresponding hardware quits work.

When external power source breaks off; Switch control logic circuit module 3 can be through the power supply of analog station interface circuit, and at this moment, switch element 4 acquiescences switch to the PSTN network schemer; Be that PSTN phone circuit module 2 corresponding hardware keep operating state, the IP phone has been realized PSTN power-off survival function.

The utility model is through being provided with the PSTN power-off survival system that is made up of IP phone circuit module, PSTN phone circuit module and switch control logic circuit module in the IP phone; Can realize any switching of IP network and PSTN network; Simultaneously externally under the power supply disconnection, can realize that PSTN power-off survival function is to guarantee user's proper communication.

The above is preferred embodiment of the utility model and the know-why of being used thereof; For a person skilled in the art; Under the situation of spirit that does not deviate from the utility model and scope; Any based on conspicuous changes such as the equivalent transformation on the utility model technical scheme basis, simple replacements, all belong within the utility model protection range.

Claims

1. the PSTN power-off survival system of an IP phone; Phone is provided with the IP/PSTN switching key; It is characterized in that: IP phone circuit module, PSTN phone circuit module and switch control logic circuit module are set in the IP phone, and this switch control logic circuit module comprises switch element and hook switch control signal generating unit;

2. PSTN power-off survival as claimed in claim 1 system; It is characterized in that; The Power interface end of said IP phone circuit module is connected with the Power interface end of said switch control logic circuit module, and these two Power interface end all are connected with external power source.

3. PSTN power-off survival as claimed in claim 2 system; It is characterized in that; The Line interface end of said PSTN phone circuit module is connected with the Line interface end of said switch control logic circuit module, and these two Line interface end all are connected with the analog station interface circuit.

4. PSTN power-off survival as claimed in claim 3 system is characterized in that said switch element corresponding interface end also is connected with IP phone keyboard and IP telephone handle interface end.

5. PSTN power-off survival as claimed in claim 4 system; It is characterized in that; During the external power source normal power supply; Said IP phone circuit module is sent switch-over control signal through the IP/PSTN interface to said switch element, and after said switch element was received this switch-over control signal, control selected network pattern corresponding hardware was started working.

6. PSTN power-off survival as claimed in claim 5 system is characterized in that said IP/PSTN switching key triggers said switch-over control signal, and high level is the IP network pattern, and low level is the PSTN network schemer.

7. PSTN power-off survival as claimed in claim 4 system is characterized in that, when external power source broke off, said switch element was controlled the pairing hardware of said PSTN phone circuit module and started working.

8. PSTN power-off survival as claimed in claim 7 system is characterized in that said switch control logic circuit module is supplied power through said analog station interface circuit.