CN105072301B - Telephone signal switching system and method - Google Patents
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- CN105072301B CN105072301B CN201510382394.6A CN201510382394A CN105072301B CN 105072301 B CN105072301 B CN 105072301B CN 201510382394 A CN201510382394 A CN 201510382394A CN 105072301 B CN105072301 B CN 105072301B
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Abstract
The invention discloses a telephone signal switching system, which comprises: the signal conversion device is used for converting a first access call signal of a public telephone network into a first dial-out call signal of a network telephone network and sending the first dial-out call signal to the Internet gateway; and/or converting a second access call signal of the network telephone network sent by the internet gateway into a second dial-out call signal of the public telephone network, and sending the second dial-out call signal to a signal receiving number of the public telephone network corresponding to the second access call signal; the internet gateway is used for receiving the first dial-out call signal and sending the first dial-out call signal to an information receiving end of a network telephone network according to the number link; and/or receiving the second access calling signal and sending the second access calling signal to the signal conversion device according to the number link. The invention makes PSTN telephone improve the mobility of telephone communication. The invention also discloses a telephone signal switching method.
Description
Technical Field
The invention belongs to the technical field of telephone communication, and particularly relates to a telephone signal switching system and a telephone signal switching method.
Background
In the information age, communication has become an indispensable tool in work and life. Public Switched Telephone Network (PSTN) is a global voice communication circuit-Switched Network, which is a circuit-Switched Network based on analog technology. The PSTN has found widespread use because of the lowest cost of communication required to interconnect it, the basic mechanism of the PSTN telephone network being shown in figure 1. However, the PSTN also has the defects of poor data transmission quality, poor transmission speed, poor mobility and the like, and cannot adapt to the current rapid information development requirement, and a large amount of financial resources and material resources are needed for updating the PSTN.
Meanwhile, some companies or enterprises require that employees do not leak the telephone of the client, and the employees need to do mobile office work through the telephone at any time; it is also necessary to ensure that the client is faced with a professional and unified service image, that is, the employee is required to work through the company fixed telephone (the company fixed telephone is displayed when the client side communicates), the telephone number of the employee cannot be disclosed, and the existing PSTN cannot meet the communication requirement.
Disclosure of Invention
In view of this, the embodiments of the present invention are expected to provide a system and a method for transferring a telephone signal, which can at least solve the technical problem that the PSTN cannot satisfy the mobile office.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a telephone signal switching system, which comprises:
the signal conversion device is used for converting a first access call signal of a public telephone network into a first dial-out call signal of a network telephone network and sending the first dial-out call signal to the Internet gateway; and/or converting a second access call signal of the network telephone network sent by the internet gateway into a second dial-out call signal of the public telephone network, and sending the second dial-out call signal to a signal receiving number of the public telephone network corresponding to the second access call signal;
the internet gateway is used for receiving the first dial-out call signal and sending the first dial-out call signal to an information receiving end of a network telephone network according to number linkage; and/or receiving a second access calling signal and sending the second access calling signal to the signal conversion device according to the number link.
In the above scheme, the signal conversion apparatus includes:
the first conversion unit is used for converting the public telephone network signal into a network telephone network signal;
and the second conversion unit is used for converting the network telephone network signal into a public telephone network signal.
In the foregoing solution, the first conversion unit includes:
a detection unit for detecting a first incoming call signal of a public telephone network;
a first signal conversion unit, configured to convert the first incoming call signal into a first outgoing call signal;
and the first signal transmission unit is used for transmitting the first outgoing call signal to an internet gateway.
In the foregoing solution, the second conversion unit includes:
the second signal transmission unit is used for receiving a second access call signal sent by the Internet gateway;
a second signal conversion unit, for converting the second incoming call signal into a second outgoing call signal of the public telephone network;
and the dialing unit is used for dialing in the public telephone network according to the second dialing call signal.
In the above scheme, the internet gateway includes:
and the number link establishing unit is used for establishing the number link between the receiving end number in the public telephone network and the binding number in the network telephone network.
The embodiment of the invention also provides a telephone signal switching method, which comprises the following steps:
monitoring a first incoming call signal of a public telephone network;
the signal conversion device converts the first access call signal into a first dial-out call signal of a network telephone network, and sends the first dial-out call signal and a receiving terminal number corresponding to the first access call signal to an internet gateway;
and the internet gateway inquires a binding number corresponding to the receiving end number and sends the first dial-out call signal to the binding number.
In the above scheme, the method further comprises:
and establishing a number link between the receiving terminal number and the binding number in the network telephone network.
The embodiment of the invention also provides a telephone signal switching method, which comprises the following steps:
monitoring a second access call signal of the network telephone network;
the Internet gateway determines the number of a receiving end of the public telephone network according to the binding number corresponding to the second access calling number; and send said second cut-in call signal and said receiving end number to the signal conversion device of the public telephone network;
and the signal conversion device converts the second access calling signal into a second dialing calling signal of a public telephone network, and sends the second dialing calling signal to a signal receiving number corresponding to the second access calling signal by taking the receiving terminal number as a signal sending number.
In the above scheme, the method further comprises:
and establishing a number link between the receiving terminal number and the binding number in the network telephone network.
In the foregoing solution, the establishing a number link between the receiving end number and the binding number in the network telephone network includes:
establishing a link between one of the receiving end numbers and one of the binding numbers, establishing a link between a plurality of the receiving end numbers and one of the binding numbers, establishing a link between one of the receiving end numbers and a plurality of the binding numbers, and/or establishing a link between a plurality of the receiving end numbers and a plurality of the binding numbers.
The telephone signal switching system and the telephone signal switching method provided by the embodiment of the invention enable the telephone of the PSTN to improve the mobility of telephone communication through the signal switching device and the internet gateway, so that the PSTN telephone user has the capacity of mobile office.
Drawings
Fig. 1 is a basic configuration diagram of a conventional PSTN telephone network;
fig. 2 is a block diagram of a telephone signal transfer system of embodiment 1;
FIG. 3 is a flowchart of a telephone signal transfer method according to embodiment 2;
FIG. 4 is a flowchart of a telephone signal transfer method according to embodiment 3;
fig. 5 is a general configuration diagram of a telephone network of the present invention of embodiment 4.
To clearly illustrate the structure of embodiments of the present invention, certain dimensions, structures and devices are shown in the drawings, which are for illustrative purposes only and are not intended to limit the invention to the particular dimensions, structures, devices and environments, which may be adjusted or modified by one of ordinary skill in the art according to particular needs and are still included in the scope of the appended claims.
Detailed Description
In the following description, various aspects of the invention will be described, however, it will be apparent to those skilled in the art that the invention may be practiced with only some or all of the structures or processes of the present invention. Specific numbers, configurations and sequences are set forth in order to provide clarity of explanation, but it will be apparent that the invention may be practiced without these specific details. In other instances, well-known features have not been set forth in detail in order not to obscure the invention.
Example 1
In order to solve the technical problem that the PSTN cannot meet the requirements of mobile office and the like, an embodiment of the present invention provides a telephone signal forwarding system, as shown in fig. 2, the system of the embodiment includes:
a signal conversion device 101, configured to convert a first incoming call signal of a public telephone network into a first outgoing call signal of a network telephone network, and send the first outgoing call signal to an internet gateway; and/or converting a second access call signal of the network telephone network sent by the internet gateway into a second dial-out call signal of the public telephone network, and sending the second dial-out call signal to a signal receiving number (equivalent to the telephone number of a telephone communication receiver in the second dial-out call signal) of the public telephone network corresponding to the second access call signal. The first access calling signal comprises a telephone number of a telephone communication initiator (which can be a public telephone network initiator or a network telephone network initiator) and a telephone number of a receiver of a public telephone network; the first dial-out call signal also comprises a telephone number of a telephone communication initiator and a telephone number of a receiver of a public telephone network, and only the data type of the information in the first access call signal is converted into the data type of the network telephone network from the data type of the public telephone network; the second access calling signal comprises a telephone number of a telephone communication initiator and a telephone number of a receiver (which can be a public telephone network receiver and also can be a network telephone network receiver) of the network telephone network; the second outgoing call signal also includes the telephone number of the telephone communication initiator and the telephone number of the receiver of the network telephone network, except that the data type of the information in the second incoming call signal is converted from the data type of the network telephone network to the data type of the public telephone network. The signal conversion device 101 can realize the conversion between the signal in the public telephone network and the signal in the network telephone network, and convert the fixed telephone in the PSTN to the network telephone network, so that the PSTN telephone is not missed, and a foundation is laid for realizing mobile office through the PSTN; meanwhile, the telephone communication in the public telephone network can be realized through the network telephone network, so that the telephone number of the PSTN is displayed at the other end of the telephone communication.
An internet gateway 102, configured to receive the first outgoing call signal, and send the first outgoing call signal to an information receiving end of a network telephone network according to a number link (that is, a telephone number of a telephone communication receiving party in the first outgoing call signal, and a device where a corresponding telephone number obtained according to the number link is located); and/or receiving a second access calling signal and sending the second access calling signal to the signal conversion device according to the number link. The internet gateway 102 can realize telephone number switching between the public telephone network and the network telephone network, realize the purpose of cross-network and user-defined number linking of telephone communication, and greatly expand the application occasions of the PSTN.
The method of the embodiment enables the telephone of the PSTN to improve the mobility of telephone communication through the signal conversion device 101 and the Internet gateway 102, and enables the PSTN telephone user to have the capacity of mobile office.
Specifically, the signal conversion apparatus 101 includes a first conversion unit and a second conversion unit; the first conversion unit is used for converting the public telephone network signal into a network telephone network signal; and the second conversion unit is used for converting the network telephone network signal into a public telephone network signal. Thus, the signal conversion can be carried out by the first conversion unit or the second conversion unit alone or by the first conversion unit and the second conversion unit simultaneously.
The first conversion unit specifically includes:
a detection unit for detecting a first incoming call signal of a public telephone network; the detection unit is provided directly on a telephone exchange of the PSTN and detects which telephone number on the telephone exchange the telephone signal calls when a telephone signal (first incoming call signal) is incoming.
A first signal conversion unit, configured to convert the first incoming call signal into a first outgoing call signal; in this embodiment, the first signal conversion unit converts the analog signal of the PSTN into a digital signal, i.e., VoIP (voice over internet protocol), and the VoIP is transmitted in real time on the IP network in the form of a data packet. The greatest advantage of VoIP is that it can widely adopt the Internet and global IP interconnection environment, providing more and better services than the traditional services.
And the first signal transmission unit is used for transmitting the first outgoing call signal to an internet gateway. The first signal transmission unit of this embodiment sends first internet phone signal for internet gateway through wireless signal transmitting device, and the WIFI module can be chooseed for use to first signal transmission unit.
The second conversion unit includes:
the second signal transmission unit is used for receiving a second access call signal sent by the Internet gateway; the second network telephone signal of the present embodiment requires displaying the telephone signal of the PSTN at the telephone receiver.
A second signal conversion unit, for converting the second incoming call signal into a second outgoing call signal of the public telephone network; the second signal conversion unit may convert the digital signal into an analog signal of the PSTN for use within the PSTN.
And the dialing unit is used for dialing in the public telephone network according to the second dialing call signal. The dialing unit replaces the calling number (the number of the telephone communication initiator) corresponding to the second access calling signal in the network telephone network with the telephone number in the PSTN.
The internet gateway 102 further includes a number link establishing unit for establishing a number link between a receiving terminal number in the public telephone network and a binding number in the network telephone network. The direction of telephone communication is considered in two cases:
one, public telephone network receiving telephone communication, switching to network telephone network
For example, telephone number a calls telephone number B, which is the telephone number of the public telephone network; a number link is established between telephone number B and telephone number C of the network telephone network. When telephone number a calls telephone number B, telephone number B is converted to telephone number C. That is, telephone number a actually calls telephone number C, and the device where telephone number C is located is the information receiving end. At this time, the device in which the telephone number a is displayed is still the telephone number B.
Two, network telephone network receiving telephone communication and switching to public telephone network
Telephone number C of the network telephone network calls telephone number a on behalf of telephone number B, which is a telephone number of the public telephone network; a number link is established between telephone number B and telephone number C. When telephone number C calls telephone number a, telephone number C is converted to telephone number B. That is, telephone number C actually calls telephone number a, but the device in which telephone number a is located displays telephone number B. In this case, the telephone number a corresponds to the above-mentioned signal receiving number.
In both cases, telephone number B corresponds to the receiver number; the telephone number C corresponds to a binding number.
Number linking can be basically divided into four cases:
(a) establishing a link between a receiving terminal number and a binding number; this is the most basic setting, and belongs to a one-to-one correspondence between the receiving end number and the binding number. (b) Establishing a link between a plurality of receiving end numbers and a binding number; this situation requires consideration of the priority of the receiving end numbers, i.e. which receiving end number the binding number first gets through when multiple receiving end numbers all access the phone at the same time. (c) Establishing links between a receiving terminal number and a plurality of binding numbers; this situation requires consideration of the priority of the bound number to make the call, which is perceived as the first time that the bound number makes the call. (d) Establishing links between the plurality of receiving end numbers and the plurality of binding numbers; at the moment, each receiving end number has a priority for connecting with the binding number, when the binding number with the highest priority is occupied, the next-level binding number is automatically selected to be connected, and if the binding number is occupied, the connection with the binding number is continuously degraded; and if the binding numbers are all occupied, waiting. Similar priority conditions exist when the binding number is connected with the receiving end number, and details are not described here.
Example 2
The method of the embodiment is to realize the telephone communication process from the public telephone network to the network telephone network by using the telephone signal switching system described in the embodiment 1. As shown in fig. 3, the method for transferring a telephone signal of the present embodiment includes the following steps:
step S201: monitoring a first incoming call signal of a public telephone network; the signal conversion device is arranged on a telephone exchange of the PSTN, and can detect a first incoming call signal when a telephone signal enters. The first incoming call signal includes a telephone number of a telephone communication initiator (which may be a public telephone network initiator or a network telephone network initiator) and a telephone number of a receiver of a public telephone network.
Step S202: the signal conversion device converts the first access call signal into a first dial-out call signal of a network telephone network, and sends the first dial-out call signal and a receiving terminal number corresponding to the first access call signal to an internet gateway; the first outgoing call signal also includes a telephone number of the telephone communication originator and a telephone number of the recipient of the public telephone network, except that the data type of the information in the first incoming call signal is converted from the data type of the public telephone network to the data type of the network telephone network.
Step S203: and the internet gateway inquires a binding number corresponding to the receiving end number and sends the first dial-out call signal to the binding number.
The method of the embodiment further comprises the following steps: and establishing a number link between the receiving terminal number and the binding number in the network telephone network, wherein the establishing process of the number link is as described in embodiment 1 and is not described herein again.
Example 3
The method of the embodiment is to realize the telephone communication process from the network telephone network to the public telephone network by using the telephone signal switching system described in the embodiment 1. As shown in fig. 4, the method for transferring a telephone signal according to the embodiment includes the following steps:
step S301: monitoring a second access call signal of the network telephone network;
step S302: the Internet gateway determines the number of a receiving end of the public telephone network according to the binding number corresponding to the second access calling number; and send said second cut-in call signal and said receiving end number to the signal conversion device of the public telephone network;
step S303: the signal conversion device converts the second incoming call signal into a second outgoing call signal of a public telephone network, and sends the second outgoing call signal to a signal receiving number (equivalent to a telephone number a) corresponding to the second incoming call signal by using the receiving terminal number as a signal sending number.
The method of the embodiment further comprises the following steps: establishing a number link between the receiving terminal number and the binding number in the network telephone network, wherein the number link establishment comprises the following types: establishing a link between one of the receiving end numbers and one of the binding numbers, establishing a link between a plurality of the receiving end numbers and one of the binding numbers, establishing a link between one of the receiving end numbers and a plurality of the binding numbers, and/or establishing a link between a plurality of the receiving end numbers and a plurality of the binding numbers. The process of establishing the number link is as described in embodiment 1, and is not described herein again.
Example 4
The present invention will be described in detail below with reference to a practical scenario.
The first conversion unit of the signal conversion apparatus of the present embodiment includes: the device comprises a PSTN telephone interface, a current detection circuit, an FPGA (Field-Programmable Gate Array)/MCU (MicrocontrollerUnit) and a WIFI module. The PSTN telephone interface is used for establishing data connection with a telephone switch of a PSTN and providing electric energy for the first conversion unit through the telephone switch; the current detection circuit is used for detecting the first access calling signal, and the first access calling signal can be detected through the current detection circuit because the first access calling signal is accompanied by the change of the current signal; the FPGA/MCU converts the first access call signal into a first dial-out call signal; and the WIFI (Wireless Fidelity) module wirelessly transmits the first outgoing call signal to the Internet gateway. Similarly, the second conversion unit also includes similar components to the first conversion unit, except that the signal direction is reversed, and thus the description is omitted here. In addition, the second conversion unit includes a dialing unit that dials the called number (corresponding to the telephone number a) with a telephone number (corresponding to the telephone number B) in the PSTN instead of the second incoming call number (corresponding to the telephone number C).
The binding number of the present embodiment selects a mobile phone number. The general structure of the telephone network of the present embodiment is shown in fig. 5. The Internet phone cloud is an IP-based company phone system; ADSL is an Asymmetric Digital Subscriber Line (Asymmetric Digital Subscriber Line), also known as Asymmetric Digital Subscriber loop; PON is a Passive Optical Network (Passive Optical Network).
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media capable of storing program codes, such as a removable Memory device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A telephone signal transfer system, said system comprising:
the signal conversion device is used for converting a first access call signal of a public telephone network into a first dial-out call signal of a network telephone network and sending the first dial-out call signal to the Internet gateway; and/or converting a second access call signal of the network telephone network sent by the internet gateway into a second dial-out call signal of the public telephone network, and sending the second dial-out call signal to a signal receiving number of the public telephone network corresponding to the second access call signal; wherein the first outgoing call signal comprises: telephone number of the telephone communication initiator and telephone number of the public telephone network receiver; the second outgoing call signal includes: the telephone number of the telephone communication initiator and the telephone number of the receiver of the network telephone network;
the internet gateway is used for receiving the first dial-out call signal and sending the first dial-out call signal to an information receiving end of a network telephone network according to number linkage; and/or receiving a second access calling signal, and sending the second access calling signal to a signal conversion device according to the number link;
the number link establishing unit is used for establishing a number link between a receiving end number in the public telephone network and a binding number in the network telephone network; wherein, a plurality of receiving end numbers are linked with one binding number, one receiving end number is linked with a plurality of binding numbers, and/or a plurality of receiving end numbers are linked with a plurality of binding numbers; each binding number has a priority for connecting with the receiving end number, when the receiving end number with high priority is occupied, the receiving end number of the next level is automatically selected to be connected, and if the receiving end numbers are occupied, the next level is waited;
when the signal conversion device sends the second dial-out call signal to the signal receiving number of the public telephone network corresponding to the second access call signal, the number of the receiving end in the public telephone network is used for replacing the number of the network telephone network initiator to dial.
2. The system of claim 1, wherein the signal conversion device comprises:
the first conversion unit is used for converting the public telephone network signal into a network telephone network signal;
and the second conversion unit is used for converting the network telephone network signal into a public telephone network signal.
3. The system of claim 2, wherein the first conversion unit comprises:
a detection unit for detecting a first incoming call signal of a public telephone network;
a first signal conversion unit, configured to convert the first incoming call signal into a first outgoing call signal;
and the first signal transmission unit is used for transmitting the first outgoing call signal to an internet gateway.
4. The system of claim 2, wherein the second conversion unit comprises:
the second signal transmission unit is used for receiving a second access call signal sent by the Internet gateway;
a second signal conversion unit, for converting the second incoming call signal into a second outgoing call signal of the public telephone network;
and the dialing unit is used for dialing in the public telephone network according to the second dialing call signal.
5. A method for transferring telephone signals, the method comprising:
monitoring a first incoming call signal of a public telephone network;
the signal conversion device converts the first access call signal into a first dial-out call signal of a network telephone network, and sends the first dial-out call signal and a receiving terminal number corresponding to the first access call signal to an internet gateway; wherein the first outgoing call signal comprises: telephone number of the telephone communication initiator and telephone number of the public telephone network receiver;
the internet gateway inquires a binding number corresponding to the receiving end number and sends the first dial-out call signal to the binding number;
the method further comprises the following steps: establishing a number link between the receiving terminal number and the binding number in the network telephone network; wherein, a plurality of receiving end numbers are linked with one binding number, one receiving end number is linked with a plurality of binding numbers, and/or a plurality of receiving end numbers are linked with a plurality of binding numbers; (ii) a Each binding number has a priority for connecting with the receiving end number, when the receiving end number with high priority is occupied, the receiving end number of next level is automatically selected to be connected, and if the receiving end numbers are occupied, the receiving end number waits.
6. A method for transferring telephone signals, the method comprising:
monitoring a second access call signal of the network telephone network;
the Internet gateway determines the number of a receiving end of the public telephone network according to the binding number corresponding to the second access calling number; and send said second cut-in call signal and said receiving end number to the signal conversion device of the public telephone network; wherein the first outgoing call signal comprises: telephone number of the telephone communication initiator and telephone number of the public telephone network receiver; the second outgoing call signal includes: the telephone number of the telephone communication initiator and the telephone number of the receiver of the network telephone network;
the signal conversion device converts the second access calling signal into a second dialing calling signal of a public telephone network, and the receiving end number is used as a signal sending number to send the second dialing calling signal to a signal receiving number corresponding to the second access calling signal;
the method further comprises the following steps: establishing a number link between the receiving terminal number and the binding number in the network telephone network; wherein, a plurality of receiving end numbers are linked with one binding number, one receiving end number is linked with a plurality of binding numbers, and/or a plurality of receiving end numbers are linked with a plurality of binding numbers; (ii) a Each binding number has a priority for connecting with the receiving end number, when the receiving end number with high priority is occupied, the receiving end number of the next level is automatically selected to be connected, and if the receiving end numbers are occupied, the next level is waited;
when the second dial-out call signal is sent to the signal receiving number of the public telephone network corresponding to the second access call signal, the number of the receiving end in the public telephone network is used for replacing the number of the network telephone network initiator to dial.
7. The method of claim 6, further comprising:
and establishing a number link between the receiving terminal number and the binding number in the network telephone network.
8. The method of claim 7, wherein the establishing a number link between the receiving end number and the binding number within the network telephone network comprises:
establishing a link between one of the receiving end numbers and one of the binding numbers, establishing a link between a plurality of the receiving end numbers and one of the binding numbers, establishing a link between one of the receiving end numbers and a plurality of the binding numbers, and/or establishing a link between a plurality of the receiving end numbers and a plurality of the binding numbers.
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| CN106992957B (en) * | 2016-01-21 | 2020-07-10 | 阿里巴巴集团控股有限公司 | Method and device for switching network call to mobile communication terminal |
| CN112073589B (en) * | 2020-11-12 | 2021-02-05 | 深圳市新龙鹏科技有限公司 | Intelligent gateway VOIP wireless call method, device, equipment and storage medium |
| CN112995427B (en) * | 2021-03-16 | 2023-06-27 | 广东电网有限责任公司 | Fixed telephone line network access system |
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