CN110730275A - Voice gateway - Google Patents
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- CN110730275A CN110730275A CN201910956574.9A CN201910956574A CN110730275A CN 110730275 A CN110730275 A CN 110730275A CN 201910956574 A CN201910956574 A CN 201910956574A CN 110730275 A CN110730275 A CN 110730275A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0066—Details of access arrangements to the networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0081—Network operation, administration, maintenance, or provisioning
- H04M7/0084—Network monitoring; Error detection; Error recovery; Network testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
- H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
- H04M7/125—Details of gateway equipment
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Abstract
The invention discloses a voice gateway, which comprises a processor, a network communication module and a voice communication module, wherein the processor is used for processing a voice message; the processor is used for respectively controlling the first switching unit and the second switching unit of the voice communication module to gate the corresponding first channels when receiving a remote monitoring instruction sent by the network communication module, so that the first voice port and the second voice port of the SLIC unit of the voice communication module are communicated; the processor is further configured to control the SLIC unit to perform an audio loopback test by using the first voice port and the second voice port as terminals to be tested, respectively, so as to obtain a test result of the first voice port and a test result of the second voice port; the SLIC unit is used for judging the fault condition of the voice port of the voice gateway according to the obtained test result, and can realize remote monitoring, thereby reducing the maintenance cost and improving the timeliness of fault judgment.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a voice gateway.
Background
With the development of broadband technology, voice gateways have been widely used by various industries. In order to deal with the abnormal situation of the voice gateway fed back by the user, an operator needs to delegate maintenance personnel to an installation point to detect the voice gateway so as to judge whether the voice port of the voice gateway is in fault or not, the consumed labor cost is high, the use amount of the voice gateway is large, the installation points are scattered, and the time required for fault judgment is long when the maintenance personnel arrives, so that the timeliness of fault judgment is poor.
Disclosure of Invention
The embodiment of the invention provides a voice gateway, which can realize remote monitoring to judge the fault condition of a voice port in the voice gateway, thereby reducing the maintenance cost of a voice gateway product and improving the timeliness of fault judgment.
In order to achieve the above object, an embodiment of the present invention provides a voice gateway, including a processor, a network communication module, and a voice communication module; wherein the content of the first and second substances,
the voice communication module comprises a SLIC unit, a first switching unit, a second switching unit, a blocking capacitor, a first RJ11 interface and a second RJ11 interface;
a first voice port of the SLIC unit is connected with a first end of the dc blocking capacitor through a first channel of the first switching unit, the first voice port is further connected with the first RJ11 interface through a second channel of the first switching unit, a second voice port of the SLIC unit is connected with a second end of the dc blocking capacitor through a first channel of the second switching unit, and the second voice port is further connected with the second RJ11 interface through a second channel of the second switching unit;
the processor is used for respectively controlling the first switching unit and the second switching unit to gate the corresponding first channels when receiving a remote monitoring instruction sent by the network communication module;
the processor is further configured to control the SLIC unit to perform an audio loopback test by using the first voice port and the second voice port as terminals to be tested, respectively, so as to obtain a test result of the first voice port and a test result of the second voice port; wherein the audio loop test comprises a frequency characteristic test, a level characteristic test and an idle noise test;
and the SLIC unit is used for judging the fault condition of the voice port of the voice gateway according to the test result of the first voice port and the test result of the second voice port.
As an improvement of the above scheme, the process of the SLIC unit performing the frequency characteristic test on the terminal to be tested includes the steps of:
sending a first test signal set to a terminal to be tested through a non-terminal to be tested; wherein the first test signal set comprises a plurality of signals with different frequencies and same levels;
after receiving the first test signal set through the terminal to be tested, calculating a first level change value set; wherein the first set of level change values is a set of level change values of each signal in the received first set of test signals compared to before transmission;
and judging whether the frequency characteristic of the end to be tested is qualified or not according to a preset first standard and the first level change value set so as to obtain a frequency characteristic test result of the end to be tested.
As an improvement of the above scheme, the process of the SLIC unit performing the level characteristic test on the terminal to be tested includes the steps of:
sending a second test signal set to the terminal to be tested through the terminal not to be tested; wherein the second set of test signals comprises a plurality of signals with different levels and the same frequency;
after receiving the second test signal set through the end to be tested, calculating a second level change value set; wherein the second level change value set is a set of level change values of each signal in the received second test signal set compared with a signal before transmission;
and judging whether the level characteristic of the end to be tested is qualified or not according to a preset second standard and the second level change value set so as to obtain a level characteristic test result of the end to be tested.
As an improvement of the above scheme, the process of the SLIC unit performing the idle noise test on the terminal to be tested includes the steps of:
testing the noise level of the end to be tested;
and judging whether the idle noise of the end to be tested is qualified or not according to a preset third standard and the noise level so as to obtain an idle noise test result of the end to be tested.
As an improvement of the above solution, the process of determining the voice port fault condition of the voice gateway by the SLIC unit according to the test result of the first voice port and the test result of the second voice port includes the steps of:
judging whether an unqualified item exists in the test result of the first voice port and the test result of the second voice port;
when the test result of the first voice port and the test result of the second voice port are judged to be unqualified, judging that the voice port of the voice gateway has a fault;
and when judging that the test result of the first voice port and the test result of the second voice port do not have unqualified items, judging that the voice port of the voice gateway does not have faults.
As an improvement of the above scheme, the processor is connected to the first switching unit and the second switching unit through GPIO ports of the processor, respectively.
As an improvement of the above scheme, the network communication module includes a WIFI module, and the WIFI module is used for wireless network data transmission.
As an improvement of the above scheme, the network communication module further includes a wired network module, and the wired network module is used for wired network data transmission.
As a modification of the above, the first switching unit is a relay or a switching circuit.
As a modification of the above, the second switching unit is a relay or a switch circuit.
Compared with the prior art, in the voice gateway provided by the embodiment of the invention, when the processor receives the remote monitoring instruction sent by the network communication module, the processor respectively controls the first switching unit and the second switching unit to gate the corresponding first channels, so that the first voice port and the second voice port of the SLIC unit are communicated, the processor controls the SLIC unit to respectively use the first voice port and the second voice port as the to-be-tested ends to perform the audio loop test, so as to obtain the test result of the first voice port and the test result of the second voice port, and finally, the SLIC unit judges the voice port fault condition of the voice gateway according to the test result of the first voice port and the test result of the second voice port, so as to realize the remote monitoring of the voice gateway. The invention can execute the remote monitoring of the voice gateway only by sending the remote monitoring instruction to the voice gateway through the network so as to judge whether the voice port of the voice gateway has a fault or not, does not need maintenance personnel to arrive at the site of a mounting point for detection, reduces the maintenance cost of a voice gateway product, and simultaneously reduces the time required by fault judgment, thereby improving the timeliness of the fault judgment.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a voice gateway provided in the present invention.
Fig. 2 is a schematic flowchart of an embodiment of a frequency characteristic test performed by a SLIC unit of a voice gateway to a terminal to be tested according to the present invention.
Fig. 3 is a schematic diagram of an embodiment of a first standard provided by the present invention.
Fig. 4 is a schematic flowchart of an embodiment of a testing a level characteristic of a to-be-tested terminal by a SLIC unit of a voice gateway provided in the present invention.
Fig. 5 is a schematic diagram of an embodiment of a second standard provided by the present invention.
Fig. 6 is a schematic flowchart of an embodiment of performing an idle noise test on a to-be-tested terminal by a SLIC unit of a voice gateway provided in the present invention.
Fig. 7 is a flowchart illustrating an embodiment of determining a voice port failure condition of a voice gateway by a SLIC unit of the voice gateway provided in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of a voice gateway provided in the present invention.
The embodiment of the invention provides a voice gateway, which comprises a processor 10, a network communication module 20 and a voice communication module 30; wherein the content of the first and second substances,
the voice communication module comprises a SLIC unit 31, a first switching unit 32, a second switching unit 33, a DC blocking capacitor 34, a first RJ11 interface 35 and a second RJ11 interface 36;
the first voice port 31A of the SLIC unit 31 is connected to the first end of the dc blocking capacitor 34 through the first channel of the first switching unit 32, the first voice port 31A is further connected to the first RJ11 interface 35 through the second channel of the first switching unit 32, the second voice port 31B of the SLIC unit 31 is connected to the second end of the dc blocking capacitor 34 through the first channel of the second switching unit 33, and the second voice port 31B is further connected to the second RJ11 interface 36 through the second channel of the second switching unit 33;
the processor 10 is configured to control the first switching unit 32 and the second switching unit 33 to gate their corresponding first channels when receiving a remote monitoring instruction sent by the network communication module 20;
the processor 10 is further configured to control the SLIC unit 31 to perform an audio loopback test by using the first voice port 31A and the second voice port 31B as terminals to be tested, respectively, so as to obtain a test result of the first voice port 31A and a test result of the second voice port 31B; the audio loop test comprises a frequency characteristic test, a level characteristic test and an idle noise test, wherein the test results comprise a frequency characteristic test result, a level characteristic test result and an idle noise test result;
the SLIC unit 31 is configured to determine a voice port fault condition of the voice gateway according to the test result of the first voice port 31A and the test result of the second voice port 31B.
Specifically, the network communication module 20 of the voice gateway is connected to the internet, the network communication module 20 is connected to the processor 10, the processor 10 is connected to the first switching unit 32 and the second switching unit 33, respectively, and the processor 10 is further connected to the SLIC unit 31 through a bus.
It should be noted that, in practical applications, the voice gateway can implement network calls. Specifically, the process of implementing the network call by the voice gateway specifically includes the following steps: firstly, the processor 10 controls the first switching unit 32 and the second switching unit 33 to gate the corresponding second channels; after the second channel of the first switching unit 32 and the second channel of the second switching unit 33 are both gated, the first voice port 31A or the first voice port 31B of the SLIC unit 31 receives an analog signal from a phone, and the SLIC unit 31 converts the analog signal from the phone into a digital signal and transmits the digital signal to a corresponding receiving end through an IP network; the received voice digital signal is converted into an analog signal by the SLIC unit 31, and is sent to the first RJ11 interface 35 or the second RJ11 interface 36 through the first voice port 31A or the first voice port 31B of the SLIC unit 31, so as to transmit the converted analog signal to the phone.
It should be noted that the frequency response and the level response are the standards for evaluating audio signals in the industry, and if the idle noise is large, the user may hear noise in use, which affects the use experience. Therefore, the frequency characteristic, the level characteristic and the idle noise are indexes for evaluating the voice port, and whether the voice port of the voice gateway is normal or not can be judged by performing audio loop tests such as a frequency characteristic test, a level characteristic test and an idle noise test on the voice port of the voice gateway.
Specifically, when the remote monitoring function of the voice gateway needs to be executed, a remote monitoring instruction is sent to the voice gateway through the internet, and when the processor 10 receives the remote monitoring instruction sent by the network communication module 20, the processor controls the first switching unit 32 and the second switching unit 33 to gate the corresponding first channels, so that the first voice port 31A and the second voice port 31B of the SLIC unit 31 are communicated. After the first voice port 31A and the second voice port 31B of the SLIC unit 31 are communicated, the processor 10 controls the SLIC unit 31 to perform the audio loop test by using the first voice port 31A as the terminal to be tested and the second voice port 31B as the terminal not to be tested to obtain the test result of the first voice port 31A, and perform the audio loop test by using the first voice port 31A as the terminal not to be tested and the second voice port 31B as the terminal to be tested to obtain the test result of the second voice port 31B, and finally, the SLIC unit 31 determines the voice port fault condition of the voice gateway according to the test result of the first voice port 31A and the test result of the second voice port 31B to realize the remote monitoring of the voice gateway. It should be noted that the order of performing the audio loopback test on the first voice port 31A and the second voice port 31B is not limited.
In the voice gateway provided by the embodiment of the invention, when the processor receives the remote monitoring instruction sent by the network communication module, the processor respectively controls the first switching unit and the second switching unit to gate the corresponding first channels so as to communicate the first voice port and the second voice port of the SLIC unit, then the processor controls the SLIC unit to respectively use the first voice port and the second voice port as the to-be-tested ends to perform the audio loop test so as to obtain the test result of the first voice port and the test result of the second voice port, and finally the SLIC unit judges the voice port fault condition of the voice gateway according to the test result of the first voice port and the test result of the second voice port so as to realize the remote monitoring of the voice gateway, so that the remote monitoring of the voice gateway can be executed only by sending the remote monitoring instruction to the voice gateway through the network, whether the voice port of the voice gateway breaks down or not is judged, maintenance personnel do not need to arrive at a mounting point for detection, maintenance cost of voice gateway products is reduced, meanwhile, time for fault judgment is shortened, and therefore timeliness of fault judgment is improved.
In a preferred embodiment, referring to fig. 2, the process of the SLIC unit 31 performing the frequency characteristic test on the terminal to be tested includes steps S11 to S13, which are as follows:
s11, sending a first test signal set to a terminal to be tested through a non-terminal to be tested; wherein the first test signal set comprises a plurality of signals with different frequencies and same levels;
s12, after receiving the first test signal set through the terminal to be tested, calculating a first level change value set; wherein the first set of level change values is a set of level change values of each signal in the received first set of test signals compared to before transmission;
and S13, judging whether the frequency characteristic of the end to be tested is qualified according to a preset first standard and the first level change value set so as to obtain a frequency characteristic test result of the end to be tested.
In specific implementation, the first test signal set may be set according to actual conditions, which does not affect the beneficial effects of the present invention. Since the range of the sound heard by the human ear is 20 Hz-20 kHz, but the human ear is most sensitive to 3500Hz, the signaling established by the telephone, including DTMF/FSK, is in the frequency range, and the dial tone, the hangup tone, etc. of the telephone are also in the frequency range, therefore, in order to improve the reliability of the frequency characteristic test, optionally, the first test signal set is composed of signals with the level of-10 dBm0 and the frequency of 201-3500 Hz, wherein the frequency difference between every two adjacent signals is 100 Hz.
In a specific implementation, the first criterion may be set according to an actual situation, for example, the level variation value corresponding to each signal in the first set of level variation values is set to be lower than 3dBm0, or the level variation value corresponding to each signal is set to be lower than the corresponding limit, which does not affect the beneficial effects of the present invention. Preferably, fig. 3 is a schematic diagram of an embodiment of the first standard provided by the present invention, where the abscissa is a frequency of a signal, the ordinate is a level attenuation of the signal, what is reflected in fig. 3 is a characteristic of the level attenuation of the signal varying with the frequency, the first level change value set should be within a limit range shown in fig. 3, when the first level change value set is within the limit range shown in fig. 3, it may be determined that the frequency characteristic of the terminal to be tested is qualified, otherwise, it is not qualified, so as to obtain a frequency characteristic test result of the terminal to be tested.
In a preferred embodiment, referring to fig. 4, the process of the SLIC unit 31 performing the level characteristic test on the terminal to be tested includes steps S21 to S23, which are as follows:
s21, sending a second test signal set to the terminal to be tested through the terminal not to be tested; wherein the second set of test signals comprises a plurality of signals with different levels and the same frequency;
s22, after receiving the second test signal set through the terminal to be tested, calculating a second level change value set; wherein the second level change value set is a set of level change values of each signal in the received second test signal set compared with a signal before transmission;
and S23, judging whether the level characteristic of the end to be tested is qualified according to a preset second standard and the second level change value set so as to obtain a level characteristic test result of the end to be tested.
In specific implementation, the second test signal set may be set according to actual conditions, which does not affect the beneficial effects of the present invention. Since audio signals have a large influence on the human hearing at frequencies around 1KHz, in order to improve the reliability of the level characteristic test, the second set of test signals may optionally consist of signals having a frequency of 1024Hz and a level in the range of-55 dBm0 to +3dBm0, wherein the level between each two adjacent signals differs by 2dBm 0.
In a specific implementation, the second criterion may be set according to an actual situation, for example, the level variation value corresponding to each signal in the second level variation value set is set to be lower than 3dBm0, or the level variation value corresponding to each signal is set to be lower than the corresponding limit, which does not affect the beneficial effects of the present invention. Preferably, fig. 5 is a schematic diagram of an embodiment of the second standard provided by the present invention, where the abscissa is a level of a signal before transmission, and the ordinate is a level gain of the signal, what is reflected in fig. 5 is a characteristic that the level gain of the signal varies with an input level, the second level variation value set should be within a limit range shown in fig. 5, when the second level variation value set is within the limit range shown in fig. 5, it can be determined that the level characteristic of the terminal to be tested is qualified, otherwise, it is not qualified, so as to obtain a level characteristic test result of the terminal to be tested.
In a preferred embodiment, referring to fig. 6, the process of the SLIC unit 31 performing the idle noise test on the terminal to be tested includes steps S31 and S21, which are as follows:
s31, testing the noise level of the end to be tested;
and S32, judging whether the idle noise of the terminal to be tested is qualified according to a preset third standard and the noise level so as to obtain an idle noise test result of the terminal to be tested.
Specifically, when the noise level of the terminal to be tested is tested, the terminal not to be tested does not send a signal. In specific implementation, the third standard may be set according to an actual situation, without affecting the beneficial effects of the present invention, and optionally, the third standard is set to have a noise level lower than-70 dBm0, when the noise level of the end to be tested is lower than-70 dBm0, the idle noise of the end to be tested is determined to be qualified, otherwise, the idle noise of the end to be tested is determined to be unqualified, so as to obtain an idle noise test result of the end to be tested.
In a preferred embodiment, referring to fig. 7, the process of determining the voice port failure condition of the voice gateway by the SLIC unit according to the test result of the first voice port and the test result of the second voice port includes steps S41 to S43, which are as follows:
s41, judging whether an unqualified item exists in the test result of the first voice port and the test result of the second voice port;
s42, when the test result of the first voice port and the test result of the second voice port are judged to be unqualified, judging that the voice port of the voice gateway has a fault;
s43, when it is judged that the test result of the first voice port and the test result of the second voice port do not have the unqualified item, it is judged that the voice port of the voice gateway does not have the fault.
Specifically, the test result of the first voice port and the test result of the second voice port both include a frequency characteristic test result, a level characteristic test result and an idle noise test result, after all the tests are completed, whether an unqualified item exists in the test result of the first voice port and the test result of the second voice port is judged, if yes, it is judged that the voice port of the voice gateway has a fault, and if not, it is judged that the voice port of the voice gateway has no fault.
In a preferred embodiment, the processor 10 is connected to the first switching unit 32 and the second switching unit 33 through GPIO ports of the processor 10, respectively, so as to control the first switching unit 32 and the second switching unit 33 to switch channels.
In a preferred embodiment, referring to fig. 1, the network communication module 20 includes a WIFI module 21, and the WIFI module 21 is configured to perform wireless network data transmission, so as to receive the remote monitoring instruction and perform other data transmission.
In a preferred embodiment, referring to fig. 2, the network communication module further includes a wired network module 22, and the wired network module 22 is used for wired network data transmission to receive the remote monitoring instruction and perform other data.
In a preferred embodiment, the first switching unit 32 is a relay or a switching circuit. The switch circuit can be a switch circuit formed by a triode, a switch circuit formed by an MOS (metal oxide semiconductor) tube or other switch circuits, and the beneficial effects of the invention are not influenced.
In a preferred embodiment, the second switching unit 32 is a relay or a switching circuit. The switch circuit can be a switch circuit formed by a triode, a switch circuit formed by an MOS (metal oxide semiconductor) tube or other switch circuits, and the beneficial effects of the invention are not influenced.
It should be noted that the preferred embodiments of the present invention can be arbitrarily combined to obtain a more preferred embodiment.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The voice gateway is characterized by comprising a processor, a network communication module and a voice communication module; wherein the content of the first and second substances,
the voice communication module comprises a SLIC unit, a first switching unit, a second switching unit, a blocking capacitor, a first RJ11 interface and a second RJ11 interface;
a first voice port of the SLIC unit is connected with a first end of the dc blocking capacitor through a first channel of the first switching unit, the first voice port is further connected with the first RJ11 interface through a second channel of the first switching unit, a second voice port of the SLIC unit is connected with a second end of the dc blocking capacitor through a first channel of the second switching unit, and the second voice port is further connected with the second RJ11 interface through a second channel of the second switching unit;
the processor is used for respectively controlling the first switching unit and the second switching unit to gate the corresponding first channels when receiving a remote monitoring instruction sent by the network communication module;
the processor is further configured to control the SLIC unit to perform an audio loopback test by using the first voice port and the second voice port as terminals to be tested, respectively, so as to obtain a test result of the first voice port and a test result of the second voice port; wherein the audio loop test comprises a frequency characteristic test, a level characteristic test and an idle noise test;
and the SLIC unit is used for judging the fault condition of the voice port of the voice gateway according to the test result of the first voice port and the test result of the second voice port.
2. The voice gateway of claim 1, wherein the process of the SLIC unit performing the frequency characteristic test on the terminal under test comprises the steps of:
sending a first test signal set to a terminal to be tested through a non-terminal to be tested; wherein the first test signal set comprises a plurality of signals with different frequencies and same levels;
after receiving the first test signal set through the terminal to be tested, calculating a first level change value set; wherein the first set of level change values is a set of level change values of each signal in the received first set of test signals compared to before transmission;
and judging whether the frequency characteristic of the end to be tested is qualified or not according to a preset first standard and the first level change value set so as to obtain a frequency characteristic test result of the end to be tested.
3. The voice gateway of claim 1, wherein said SLIC unit performing said level characteristic test on said terminal under test comprises the steps of:
sending a second test signal set to the terminal to be tested through the terminal not to be tested; wherein the second set of test signals comprises a plurality of signals with different levels and the same frequency;
after receiving the second test signal set through the end to be tested, calculating a second level change value set; wherein the second level change value set is a set of level change values of each signal in the received second test signal set compared with a signal before transmission;
and judging whether the level characteristic of the end to be tested is qualified or not according to a preset second standard and the second level change value set so as to obtain a level characteristic test result of the end to be tested.
4. The voice gateway of claim 1, wherein the process of the SLIC unit performing the idle noise test on the terminal under test comprises the steps of:
testing the noise level of the end to be tested;
and judging whether the idle noise of the end to be tested is qualified or not according to a preset third standard and the noise level so as to obtain an idle noise test result of the end to be tested.
5. The voice gateway of claim 1, wherein the process of the SLIC unit determining the voice port failure condition of the voice gateway based on the test result of the first voice port and the test result of the second voice port comprises the steps of:
judging whether an unqualified item exists in the test result of the first voice port and the test result of the second voice port;
when the test result of the first voice port and the test result of the second voice port are judged to be unqualified, judging that the voice port of the voice gateway has a fault;
and when judging that the test result of the first voice port and the test result of the second voice port do not have unqualified items, judging that the voice port of the voice gateway does not have faults.
6. The voice gateway of claim 1, wherein the processor is connected to the first switching unit and the second switching unit through GPIO ports of the processor, respectively.
7. The voice gateway of claim 1, wherein the network communication module comprises a WIFI module, the WIFI module for wireless network data transmission.
8. The voice gateway of claim 7, wherein the network communication module further comprises a wired network module for wired network data transmission.
9. The voice gateway of claim 1, wherein the first switching unit is a relay or a switching circuit.
10. The voice gateway of claim 1, wherein the second switching unit is a relay or a switching circuit.
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