CN210490944U

CN210490944U - Fixed wireless telephone with extension interface

Info

Publication number: CN210490944U
Application number: CN201922268105.6U
Authority: CN
Inventors: 周明华
Original assignee: Huizhou Na Ya Technology Co Ltd
Current assignee: Huizhou Na Ya Technology Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-05-08
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a fixed wireless telephone with extension interfaces, which comprises a processing module for controlling and processing signals, a GSM module for GSM network communication, at least two extension interfaces for connecting extension, a user interface module for communication between the extension interfaces and the GSM module, a PSTN interface for connecting a common telephone network, a voice module for voice input and output, and a microphone; user interface module, GSM module, two at least extension interfaces, PSTN interface and voice module respectively with processing module connects, user interface module with the GSM module is connected, the microphone with voice module and GSM module are connected. The utility model discloses can connect ordinary telephone and GSM internet phone, satisfy user's multiple demand, and possess the extension function, it is nimble convenient to use.

Description

Fixed wireless telephone with extension interface

Technical Field

The utility model relates to the field of communication technology, particularly, relate to a take wireless fixed line of extension interface.

Background

The existing fixed wireless telephone only has the function of dialing and answering the GSM network telephone, and when a user needs to answer an ordinary telephone line, the fixed wireless telephone cannot meet the requirements of the user. In addition, the existing fixed wireless telephone can not be provided with an extension set and can not control dialing and answering of the extension set, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take wireless fixed line of extension interface can connect ordinary telephone and GSM internet phone, satisfies user's multiple demand, and possesses the extension function, and it is nimble convenient to use.

A fixed wireless telephone with extension interfaces comprises a processing module for controlling and processing signals, a GSM module for GSM network communication, at least two extension interfaces for connecting extension, a user interface module for communication between the extension interfaces and the GSM module, a PSTN interface for connecting a common telephone network, a voice module for voice input and output, and a microphone; user interface module, GSM module, two at least extension interfaces, PSTN interface and voice module respectively with processing module connects, user interface module with the GSM module is connected, the microphone with voice module and GSM module are connected.

Furthermore, a relay is arranged between the processing module and at least two extension interfaces, and the user interface module is connected with the relay.

Furthermore, a polarity conversion circuit is arranged between the processing module and the PSTN interface, and the polarity conversion circuit is connected with the voice module and the relay.

Furthermore, the system also comprises a line detection circuit used for detecting whether a PSTN line is connected or not, wherein the line detection circuit is arranged between the processing module and the polarity conversion circuit.

Furthermore, the system also comprises a ringing detection circuit used for detecting an incoming call, wherein the ringing detection circuit is arranged between the processing module and the PSTN interface.

Furthermore, a voice coding chip is arranged between the user interface module and the GSM module.

Further, still include a plurality of electronic switches, electronic switch sets up between microphone and voice module, between microphone and the GSM module, and between GSM module and speech coding chip.

Compared with the prior art, the beneficial effects of the utility model are that: the GSM network telephone is satisfied, meanwhile, the access of the traditional telephone line (PSTN line) is kept, different requirements of users are satisfied, and the mobile operator product popularization is facilitated. The system supports a plurality of extension interfaces, is convenient for users to install the extensions in different rooms and different floors, and is more convenient for answering calls.

Drawings

Fig. 1 is a block diagram of the fixed wireless telephone with extension interface of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, in a preferred embodiment, the fixed wireless phone with extension interface of the present invention mainly includes a processing module 1, a user interface module 2, a GSM module 3, an extension interface 4, a PSTN interface 5, a voice module 6, and a microphone 7. User interface module 2, GSM module 3, extension interface 4, PSTN interface 5 and voice module 6 are connected with processing module 1 respectively, and microphone 7 is connected with voice module 6 and GSM module 3.

The processing module 1 is mainly used for controlling and processing signals, and in this embodiment, the processing module 1 adopts an EMP803 chip. The 4 ends of the extension interfaces are used for connecting extensions, so that users can answer calls at different positions conveniently, the relay 8 is arranged between the processing module 1 and the extension interfaces 4, the processing module 1 controls the on-off of the extension interfaces 4 by means of the on-off of the relay 8, and therefore the control of the extensions is achieved. In this embodiment, the number of extension interfaces 4 is two, but is not limited to this, and in other embodiments, the number of extension interfaces 4 may be more than two.

The PSTN (public Switched Telephone network) interface 5 is used for connecting a normal Telephone network, the PSTN interface 5 is connected with a protection circuit 9, and the protection circuit 9 is used for preventing equipment from being damaged by lightning. The PSTN interface 5 is connected to a polarity conversion circuit 10 via a protection circuit 9, and the polarity conversion circuit 10 is used for converting the polarity of the alternating current of the PSTN interface 5 to match the polarity of the circuit. A line detection circuit 11 is arranged between the processing module 1 and the polarity conversion circuit 10, and the line detection circuit 11 is used for detecting whether the PSTN interface 5 is connected to a normal telephone network or not, and sending a connection state to the processing module 1 through a signal. A ring detection circuit 12 is arranged between the processing module 1 and the PSTN interface 5, and the ring detection circuit 12 is used for detecting an incoming call of a normal telephone network and sending the incoming call to the processing module 1.

The user interface module 2 is connected with the GSM module 3 and is connected with the processing module 1 through the relay 8, and the user interface module 2 is used for realizing communication between the extension interface 4 and the GSM module 3, wherein the user interface module 2 is commercially available, which is not described herein. The GSM module 3 is used to implement communication based on a GSM network, and in this embodiment, the GSM module 3 adopts a SIM800H module, which includes a self-contained LCD display screen. Be equipped with speech coding chip 13 between user interface module 2 and the GSM module 3, it is used for carrying out speech decoding to GSM module 3 to signal after will decoding sends extension interface 4 and processing module 1 through user interface module 2, and in this embodiment, speech coding chip 13 adopts the N8814 chip.

The voice module 6 is connected with the processing module 1 and the microphone 7, and is connected with the PSTN interface 5 through the polarity conversion circuit 10. The voice module 6 is provided with a microphone and a loudspeaker, and is used for transmitting voice signals between the PSTN interface 5 and the microphone 7.

It should be noted that, since the GSM network is different from the general telephone network in the way of connecting the microphone 7, in order to distinguish the two connection ways, the present embodiment is provided with a plurality of electronic switches 14, the electronic switches 14 adopt the SGM3005, and the electronic switches 14 are disposed between the microphone 7 and the voice module 6, between the microphone 7 and the GSM module 3, and between the GSM module 3 and the voice encoding chip 13.

In this embodiment, a power supply 15 for supplying power to the circuit is included, and the power supply 15 may be a battery or a mains power supply.

In order to more clearly understand the fixed wireless telephone with the extension interface of the embodiment, the specific working principle is as follows:

when the call is received by the ordinary telephone network, the call number is decoded by the processing module 1 and then uploaded to the GSM module 3, and is displayed by the LCD display screen of the GSM module 3, at the moment, the call can be received by the telephone and the extension connected with the extension interface 4, but the call can not be simultaneously connected, and the specific implementation mode is as follows:

when the telephone is in communication with the PSTN interface 5, the extension microphone needs to output busy tone, the busy tone is off-hooked from the processing module 1 to the extension interface 4, an instruction is sent to the GSM module 3, and the GSM module 3 controls the user interface module 2 to output the busy tone to the extension interface 4; when the extension is in conversation with the PSTN interface 5, the local microphone 7 needs to output busy tone, and the busy tone is directly output to the microphone 7 by the processing module 1.

When a call comes from the GSM network, the incoming call number is directly decoded and output to the LCD screen of the GSM network by the GSM module 3, and at this time, the telephone and the extension connected to the extension interface 4 can both receive the call, but cannot be connected at the same time, and the specific implementation manner is as follows:

when the GSM module 3 detects the incoming call of the GSM network, the signal is immediately sent to the processing module 1, and the processing module 1 controls the PSTN interface 5 to perform false off-hook so as to prevent the PSTN from making a call at the moment.

When the machine is in GSM network communication, the extension microphone needs to output busy tone, the processing module 1 sends an instruction to the GSM module 3 after detecting that the extension interface 4 is off-hook, and the GSM module 3 controls the interface module 2 to output the busy tone to the extension interface 4; when the extension is in GSM network communication, the local microphone 7 needs to output busy tone, and the busy tone is directly output to the microphone 7 by the processing module 1.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. A fixed wireless telephone with extension interfaces is characterized by comprising a processing module for controlling and processing signals, a GSM module for GSM network communication, at least two extension interfaces for connecting extension sets, a user interface module for communication between the extension interfaces and the GSM module, a PSTN interface for connecting a common telephone network, a voice module for voice input and output, and a microphone; user interface module, GSM module, two at least extension interfaces, PSTN interface and voice module respectively with processing module connects, user interface module with the GSM module is connected, the microphone with voice module and GSM module are connected.

2. The fixed wireless telephone with extension interface of claim 1, wherein a relay is provided between the processing module and at least two extension interfaces, and the user interface module is connected with the relay.

3. The fixed wireless telephone with the extension interface of claim 2, wherein a polarity conversion circuit is arranged between the processing module and the PSTN interface, and the polarity conversion circuit is connected with the voice module and the relay.

4. The fixed wireless telephone with extension interface of claim 3, further comprising a line detection circuit for detecting whether a PSTN line is connected, wherein the line detection circuit is disposed between the processing module and the polarity conversion circuit.

5. The fixed wireless telephone with extension interface of claim 3, further comprising a ring detection circuit for detecting an incoming call, said ring detection circuit being disposed between said processing module and said PSTN interface.

6. The fixed wireless telephone with extension interface of claim 1, wherein a voice coding chip is disposed between the user interface module and the GSM module.

7. The fixed wireless telephone with extension interface of claim 6, further comprising a plurality of electronic switches, wherein the electronic switches are disposed between the microphone and the voice module, between the microphone and the GSM module, and between the GSM module and the voice encoding chip.