TWM652189U - External voice switchboard system - Google Patents

Abstract

An external voice switchboard system is used to connect to a private branch exchange and includes a telecommunications connection port and a processing device, wherein the telecommunications connection port is connected to the second telephone connection port; the processing device is connected to the telecommunications connection port and through the telecommunications The connection port is connected to the second telephone connection port, a first call connection is established based on the incoming call signal, and then the call target information is recognized based on the incoming call voice in the first call connection, and at least the call target information corresponding to the call target information is searched from the database. A communication data; the processing device sends a hold signal and a dial signal corresponding to the extension number to the private branch exchange through the telecommunications connection port, when the processing device determines that the private branch exchange establishes a second call connection corresponding to the extension number , the processing device disconnects the first call connection.

Description

External voice switchboard system

This creation is related to telephone communication systems; in particular, it refers to an external voice switchboard system connected to a private exchange.

A traditional Private Branch eXchange (PBX) is connected to a Public Switched Telephone Network (PSTN), and the PBX is connected to multiple telephones, and these telephones can communicate with each other through the PBX, that is, Intercom call. Each telephone can dial to the public switched telephone network through a private branch exchange, or the private exchange can forward incoming calls from the public switched telephone network to a specific telephone, that is, an outside call.

When the private branch exchange receives an incoming call from the public switched telephone network, it will establish a call connection and play a welcome message, requiring the caller to enter the extension number. The caller must enter the extension number on his phone device. , let the private exchange perform the transfer. For a traditional telephone as the calling device, you can enter the extension number by simply pressing the physical numeric buttons on the telephone. However, when the calling device is a smartphone, the caller must operate the touch screen of the smartphone to display the button interface, and then click on the digital image on the button interface to enter the extension number. , which is very inconvenient to operate.

With the advancement of technology, private exchanges with the function of identifying incoming voice calls have been launched on the market. However, the price of private exchanges with the function of identifying incoming voice sounds is high. Expensive, it will be a considerable expense for the owners of traditional private exchanges to replace the original private exchanges.

In view of this, the purpose of this creation is to provide an external voice switchboard system that can be externally connected to a traditional private branch exchange to provide voice recognition functions and forward incoming calls to specific extension numbers.

In order to achieve the above purpose, this invention provides an external voice switchboard system for connecting to a private exchange, wherein the private exchange is used to connect to a public switched telephone network, and the private exchange has a plurality of telephone connection ports. The telephone connection ports include a plurality of first telephone connection ports and a second telephone connection port, each of the first telephone connection ports is used to connect a telephone; the private branch exchange forwards an incoming call signal from the public switched telephone network Connected to the second telephone connection port; the external voice switchboard system includes a telecommunications connection port and a processing device, wherein the telecommunications connection port is connected to the second telephone connection port; the processing device is electrically connected to the telecommunications connection port and through The telecommunications connection port is connected to the second telephone connection port, and the processing device establishes a first call connection based on the incoming call signal; the processing device recognizes a call target information based on an incoming call voice in the first call connection, and automatically Search a database for at least one communication data corresponding to the call target information, and the at least one communication data includes an extension number; the processing device sends a hold signal and a dial signal corresponding to the extension number to the dedicated switch, when the processing device determines that the private branch exchange has established a second call connection corresponding to the extension number, the processing device disconnects the first call connection.

The effect of this invention is that the external voice switchboard system can be connected to the telephone connection port of the private exchange through the telecommunications connection port, without replacing the private exchange. Add voice recognition function to the private branch exchange to identify the voice of incoming calls, and control the private branch exchange to transfer the incoming call to the corresponding extension number.

[This creation]

10: External voice switchboard system

11:Telecom connection port

12: Processing device

121: Voice processing module

121a: Dialog management unit

121b: Speech recognition unit

121c: Natural Language Understanding Unit

121d: Speech synthesis unit

123:Internet telephone switching module

12a: Signal converter

13:Database

14:Network port

20:Private exchange

21: Telephone connection port

211: First telephone port

212: Second telephone port

30:Public switched telephone network

40:Telephone

50:Internet

60:External electronic devices

S11~S14, S13’: steps

Figure 1 is a schematic diagram of an external voice switchboard system connected to a dedicated switchboard according to a first preferred embodiment of this invention.

Figure 2 is a schematic diagram of an external voice switchboard system according to the first preferred embodiment of this invention.

Figure 3 is an operation flow chart of the external voice switchboard system according to the first preferred embodiment of this invention.

Figure 4 is an operation flow chart of an external voice switchboard system according to a second preferred embodiment of this invention.

In order to explain the present invention more clearly, the preferred embodiments are described in detail below along with the drawings. Among them, FIG. 1 shows a schematic connection diagram of an external voice switchboard system 10 according to the first preferred embodiment of the present invention, which is used for external connection to a private branch exchange 20 . The private branch exchange 20 is used to connect to a public switched telephone network 30, and the private branch exchange 20 has a plurality of telephone connection ports 21, and each of the telephone connection ports 21 corresponds to an extension number. The telephone connection ports 21 include a plurality of first telephone connection ports 211 and a second telephone connection port 212. Each first telephone connection port 211 is used to connect to a telephone 40 . The private branch exchange 20 connects the telephones 40 and the public switched telephone network 30. Interoperable internal calls can be established between the telephones 40, and each telephone 40 can also be connected to the public switched telephone network through the private exchange 20. Route 30 for outside calls.

The external voice switchboard system 10 includes a telecommunications connection port 11, a processing device 12, a network connection port 14 and a database 13, wherein the telecommunications connection port 11 is used to connect to the second telephone connection port of the private branch exchange 20 212, such as using a telephone line connection. The private branch exchange 20 transfers an incoming call signal from the public switched telephone network 30 to the second telephone connection port 212, allowing the external voice switchboard system 10 to answer the incoming call signal. The external voice switchboard system 10 can also Interoperable internal telephone connections are established with these telephone sets 40 .

Please cooperate with Figure 2. The processing device 12 is electrically connected to the telecommunications connection port 11 and is electrically connected to the second telephone connection port 212 through the telecommunications connection port 11, whereby the private branch exchange 20 can transmit the incoming call signal to the processing unit. Device 12. In this embodiment, the private branch exchange 20 is an analog type, and the received/sent signals are analog signals. The processing device 12 is a digital type, and the received/sent signals are digital signals. Therefore, between the processing device 12 and the A signal converter 12a is further disposed between the telecommunications connection ports 11, and the processing device 12 is electrically connected to the telecommunications connection ports 11 through the signal converter 12a. The signal converter 12a is used to convert the analog signal from the private branch exchange 20 into a corresponding digital signal and transmit it to the processing device 12, or to convert the digital signal from the processing device 12 into a corresponding analog signal and transmit it to the private branch exchange. 20. In one embodiment, the signal converter 12a can also be integrated into the processing device 12, so that the processing device 12 has the function of converting analog signals and digital signals. In one embodiment, when the private branch exchange 20 is digital, the signal converter 12a can be omitted, and the processing device 12 is directly electrically connected to the telecommunications connection port 11.

The processing device 12 is further electrically connected to the network port 14 and the database 13 . The network port 14 is connected to at least one external electronic device 60 through a network 50 . The network 50 may be, for example, a local area network or the Internet. The external electronic device 60 may include but is not limited to mobile devices such as mobile phones and tablet computers that have the function of connecting to the Internet. Subsequently, the external electronic device 60 may be Set 60 as a telephone. In one embodiment, if there is no need to connect the external electronic device 60, the network port 14 can be omitted.

The database 13 is used to store a plurality of communication data. For example, each communication data may be the communication data of each employee of the company. Each communication data includes information related to each employee. Each communication data includes a primary data and an auxiliary data. material. Among them, the main information includes: name (surname and first name) and extension number; the auxiliary information includes: department, professional title, gender, gender title...etc., at least one or more combinations. In this embodiment, the database 13 uses non-volatile memory as a medium for storing data, such as a hard disk, a memory card, etc. However, in practice, a cloud storage space connected to the network 50 can also be used as the data storage space. Library 13.

The processing device 12 includes an Internet telephone switching module 123 and a voice processing module 121. The processing device 12 can be a processor. The Internet phone switching module 123 and the voice processing module 121 are respectively software modules in this embodiment, but are not limited to this and can also be hardware modules. . The Internet phone switching module 123 is connected to the telecommunications port 11 and the network port 14 , and the Internet phone switching module 123 is connected to the voice processing module 121 . In this embodiment, the Internet telephone switching module 123 is signal-connected to the telecommunications connection port 11 through the signal converter 12a.

The voice processing module 121 is used to process the voice of incoming calls, generate corresponding voice and output it. In more detail, the speech processing module 121 includes a dialogue management unit 121a, a speech recognition unit 121b, a natural language understanding unit 121c and a speech synthesis unit 121d. The dialogue management unit 121a is respectively connected to the speech recognition unit 121b, the natural language understanding unit 121c and the speech synthesis unit 121d.

In addition, the aforementioned Internet telephone switching module 123 can also be integrated into the conversation management unit 121a in other embodiments. The management unit 121a is connected to the network port 14 via a signal, and is connected to the telecommunications port 11 through the signal converter 12a.

The conversation management unit 121a of the voice processing module 121 is connected to the database 13 to access the communication data in the database 13.

The operation process of the external voice switchboard system 10 of this embodiment will be described below with reference to FIG. 3 .

An incoming call party dials to the private branch exchange 20 through the public switched telephone network 30 . When the private branch exchange 20 receives the incoming call signal from the public switched telephone network 30, the private branch exchange 20 transfers the incoming call signal to the external voice switchboard system 10 according to the extension number of the second telephone connection port 212. . The incoming call signal output from the second telephone connection port 212 is input to the telecommunications connection port 11 of the external voice switchboard system 10, and the incoming call signal is converted from an analog signal into a digital signal through the signal converter 12a, and then transmitted to The processing device 12.

Step S11: The processing device 12 establishes a first call connection based on the incoming call signal. In this embodiment, the Internet phone switching module 123 transmits the incoming call signal to the voice processing module 121, and the conversation management unit 121a of the voice processing module 121 establishes the first call connection. The dialogue management unit 121a generates a text of a welcome word and sends it to the speech synthesis unit 121d. The speech synthesis unit 121d generates a corresponding voice of the welcome word according to the text of the welcome word, wherein the text of the welcome word can be generated by the user. Set it according to your needs. The conversation management unit 121a transmits the voice of the welcome message to the Internet telephone switching module 123, and then converts the voice of the welcome message into a corresponding analog signal through the signal converter 12a, and transmits it to The public switched telephone network 30 thereby plays the voice of the welcome message to the caller in the first call connection. The text and voice of the greeting may, for example, require the caller to speak an addressee target message, for example, "Hello, please say what you are looking for." The name or relevant information of the person”. After hearing the voice of the greeting, the calling party speaks the recipient target information to form an incoming call voice in the first call connection. The incoming call voice may have the recipient target information. For example, the call target information includes one or more search conditions, and the or these search conditions may be, for example, a combination of at least one or more of extension number, name, surname, first name, department, job title, and gender title.

Step S12: The incoming call voice in the first call connection is transmitted to the processing device 12, and the voice processing module 121 of the processing device 12 identifies the call target information based on the incoming call voice in the first call connection. And based on the conversation target information, at least one communication data corresponding to the conversation target information is searched from the database 13 . In this embodiment, the conversation management unit 121a receives the incoming call voice and transmits the incoming call voice to the speech recognition unit 121b. The speech recognition unit 121b converts the incoming call voice into an incoming call text and sends it to the dialogue management unit 121a, and then the dialogue management unit 121a sends the incoming call text to the natural language understanding unit 121c. The natural language understanding unit 121c parses the incoming call text and determines whether the incoming call text contains one or more search conditions with the subject information. If so, sends the subject information to the conversation management unit 121a. The conversation management unit 121a searches for at least one communication data corresponding to the conversation target information from the database 13 based on the conversation target information. If the natural language understanding unit 121c cannot determine the recipient information from the incoming call text, the dialogue management unit 121a generates a reply text, such as "Please re-speak the name or related information of the person you are looking for", and A reply voice corresponding to the reply text is generated through the speech synthesis unit 121d and transmitted to the Internet telephone switching module 123, and the reply voice is played in the first call connection to require the caller to speak the received message again. Target information to form a new voice for the incoming call.

Step S13: When the conversation management unit 121a of the processing device 12 searches for one communication data corresponding to the conversation target information from the database 13, that is, the extension number The processing device 12 sends a hold signal and a dial signal corresponding to the extension number to the private branch exchange 20 through the telecommunications connection port 11 to request the private branch exchange 20 to transfer the incoming call signal to the corresponding extension number. The first telephone connection port 211 is the telephone 40. For example, the hold signal may be a hold (hook or flash hook), and the dial signal may be a Dual-Tone Multi-Frequency (DTMF).

To be more specific, when the searched communication data is one, the conversation management unit 121a generates text to send a transfer response based on the communication data, and generates corresponding speech through the speech synthesis unit 121d to complete the first call. The transfer response voice is played during the connection. The transfer response voice is used to inform the caller that the transfer is in progress. And the conversation management unit 121a causes the Internet phone switching module 123 to generate the hold signal and the dial signal corresponding to the extension number, and converts the hold signal and the dial signal through the signal converter 12a and the telecommunications connection port 11 transmitted to the private branch exchange 20. After receiving the hold signal, the private branch exchange 20 reserves the first call connection and dials the extension number according to the dialing signal.

Step S14: When the processing device 12 determines that the private branch exchange 20 has established a second call connection corresponding to the extension number, the processing device 12 disconnects the first call connection.

In this embodiment, after the processing device 12 sends the hold signal and the dial signal, the private branch exchange 20 sends a response voice signal to the processing unit through the second telephone connection port 212 during the process of transferring the extension number. Device 12. When the processing device 12 determines that a ring tone in the response voice signal is not a busy tone, it further determines whether the sound intensity of the response voice signal is greater than a threshold, wherein the ring tone and the busy tone are The sound intensity will be less than this threshold. If the sound intensity is greater than the threshold, it means that the microphone of the telephone 40 has been picked up by a user and the user makes a sound such that the sound intensity is greater than the threshold. Therefore, the processing device 12 determines that the private branch exchange 20 has established a corresponding The second call connection of the extension number line, and the processing device 12 disconnects the first call connection, whereby the private branch exchange 20 can transfer the incoming call from the calling party to the telephone 40 corresponding to the extension number.

When the processing device 12 determines that the response sound signal is a busy tone, it means that the telephone 40 corresponding to the extension number is in a busy state. The voice processing module 121 plays the voice of a busy prompt word in the first call connection, such as "Extension is busy."

In addition to using the sound intensity in the response sound signal to determine whether to establish a second call connection, the processing device 12 can also determine whether to establish a second call connection within a predetermined period of time (for example, 5 seconds) after sending the hold signal and the dial signal. When the response voice signal from the private branch exchange 20 is detected, it is determined that the private branch exchange 20 has established the second call connection corresponding to the extension number. For example, the user immediately picks up the phone when the phone 40 is ringing and the user does not make a sound. At this time, the private branch exchange 20 has not yet generated the response sound signal, but has established a second call connection. In this situation, the processing device 12 does not detect the response sound signal during the predetermined time period. Therefore, the processing device 12 determines that the private branch exchange 20 has established the corresponding extension number after the predetermined time period. The second call is connected.

Among the above, the processing device 12 can use the dialogue management unit 121a of the voice processing module 121 to determine the response voice signal, or the voice processing module 121 can further include a voice signal processing unit dedicated to processing the response voice signal. judgment.

Optionally, the processing device 12 can play a voice prompt for an incoming call in the second call connection, such as "There is a call from you", and then disconnect the first call connection.

At least one of the communication data stored in the database 13 further includes a communication account, the communication account corresponds to the external electronic device 60 , and the communication account is used for the processing device 12 to connect to through the network 50 the external electronic device 60 . In practice, multiple communication data may each have a communication account, and these communication accounts respectively correspond to multiple external electronic devices 60 . In the above step S13, when the session management unit 121a of the processing device 12 When the communication data corresponding to the call target information searched from the database 13 is one hour, and the communication data includes the communication account, the processing device 12 in addition to transmitting the hold signal and the corresponding extension number through the telecommunications connection port 11 The dialing signal is sent to the private branch exchange 20. The processing device 12 is further connected to the network 50 through the network connection port 14, and sends a call request signal to the external electronic device 60 corresponding to the communication account to notify The external electronic device 60 currently has an incoming call. When the processing device 12 determines that the private branch exchange 20 establishes the second call connection, the processing device 12 stops sending the call request signal to the external electronic device 60 and disconnects the first call connection, thereby allowing the user to The user can answer incoming calls on the telephone 40. When the processing device 12 determines that the private branch exchange 20 has not established the second call connection and the external electronic device 60 responds to the call request signal, the processing device 12 transfers the first call connection to the external electronic device. 60, which is equivalent to using the external electronic device 60 as an extension, and the user of the external electronic device 60 can talk to the caller. When the user of the external electronic device 60 picks up the call, the external electronic device 60 responds to the call request signal, and the processing device 12 sends the hold signal to the private branch exchange 20 again, causing the private branch exchange 20 to cancel the transfer and allow the other party to The telephone 40 of the communication account stops ringing.

In the aforementioned step S12: when the conversation management unit 121a of the processing device 12 does not search for communication data corresponding to the conversation target information from the database 13, a switchboard transfer step is performed. The switchboard transfer step includes: The Internet telephone switching module 123 generates the hold signal and another dial signal corresponding to a preset extension number, and the hold signal and the other dial signal are transmitted to the signal converter 12a and the telecommunications connection port 11. The private branch exchange 20 requests the private branch exchange 20 to transfer the incoming call signal to the telephone 40 of the first telephone connection port 211 corresponding to the preset extension number. In this embodiment, the preset extension number can be an extension of a switchboard. No. When the processing device 12 determines that the private branch exchange 20 has established a third call connection corresponding to the preset extension number, the processing device 12 disconnects the first call connection so that the corresponding The user of the telephone 40 with the preset extension number can talk to the caller. The processing device 12 determines whether the third call connection has been established in the same manner as the method of determining whether the second call connection has been established in step S14, and will not be described again here.

Optionally, when the conversation management unit 121a does not search for communication data corresponding to the conversation target information, the conversation management unit 121a can confirm whether it is the first time to search. If it is the first time to search, the conversation management unit 121a proceeds as in step S12 above. The reply text is generated, and the corresponding reply voice is generated through the speech synthesis unit 121d and transmitted to the Internet telephone switching module 123, so as to play the reply voice in the first call connection to request the incoming call. The party re-speaks the call target information to form a new voice of the incoming call. Then, steps S12 to S14 can be performed again. If this is not the first search, proceed with the transfer switchboard steps described above.

In the aforementioned step S12: when the conversation management unit 121a of the processing device 12 searches for a plurality of communication data corresponding to the conversation target information from the database 13, the conversation management unit 121a generates another reply text, such as "Please tell me other information about the person you are looking for", and generate the reply voice corresponding to the reply text through the speech synthesis unit 121d and transmit it to the Internet telephone switching module 123, so that in the first call connection The reply voice is played to require the calling party to speak an auxiliary search condition for the recipient target information. After the calling party speaks the auxiliary search condition, another incoming call voice in the first call connection is formed. The auxiliary search condition may be, for example, one or more combinations of last name, first name, department, professional title, and gender title.

Next, the conversation management unit 121a receives the another incoming call voice and transmits the another incoming call voice to the speech recognition unit 121b. The voice recognition unit 121b recognizes the other incoming call voice and converts it into another incoming call text and sends it to The conversation management unit 121a transmits the text of another incoming call to the natural language understanding unit 121c. The natural language understanding unit 121c parses the text of the other incoming call and obtains the text from the other incoming call. When it is determined that the auxiliary search condition exists in the text message, the auxiliary search condition is sent to the conversation management unit 121a. The conversation management unit 121a searches the communication data corresponding to the conversation target information from the database 13 according to the auxiliary search conditions of the conversation target information. When the conversation management unit 121a compares the auxiliary data of only one communication data that meets the auxiliary search condition, steps S13 to S14 are performed; when the conversation management unit 121a compares the auxiliary data of more than two communication data, all When the auxiliary search conditions are met, the above steps of transferring to the switchboard are performed.

Figure 4 shows the operation process of the external voice switchboard system 10 according to the second preferred embodiment of this invention. It is based on the first embodiment. The difference is that the call target information in the incoming call voice includes multiple search conditions, and in step S13', when the conversation management unit 121a searches for one corresponding communication data from the database 13 according to one of the search conditions of the recipient information, the conversation management unit 121a further compares When the auxiliary data person of the communication data meets another search condition of the call target information, the conversation management unit 121a causes the Internet telephone switching module 123 to generate the hold signal and the dial signal corresponding to the extension number, and via The signal converter 12 a and the telecommunications port 11 transmit the hold signal and the dial signal to the private branch exchange 20 . In this way, it can be confirmed again that the communication data is consistent with the call target information, thereby avoiding the situation where the voice processing module 121 misrecognizes the voice of the incoming call.

In step S13', when the dialogue management unit 121a compares the auxiliary data person with another search condition that does not meet the subject information, the dialogue management unit 121a generates a reply text, such as "Please re-say what you are looking for." "Person's name or related information", and generates a reply voice corresponding to the reply text through the speech synthesis unit 121d and transmits it to the Internet telephone switching module 123, so as to play the reply voice in the first call connection to The calling party is required to re-speak the receiving target information to form a new voice of the incoming call.

Optionally, the dialogue management unit 121a can confirm whether it is the first search. If it is the first search, the dialogue management unit 121a generates the reply text as in the above step S13', and generates the corresponding reply through the speech synthesis unit 121d. The voice is transmitted to the Internet telephone switching module 123 to play the reply voice in the first call connection to require the caller to re-speak the call target information to form a new voice of the incoming call. Then, steps S12 to S14 can be performed again. If it is not the first search, the step of transferring to the switchboard in the first embodiment is performed.

According to the above, the external voice switchboard system 10 of this invention can be externally connected to the traditional private branch exchange 20, and then provide the functions of voice recognition and voice reply through the voice processing module 121 of the processing device 12. In this way, Without replacing the private branch exchange 20, the purpose of transferring a specific extension number according to the caller's voice can be achieved, thereby improving the situation when the caller's communication device is a smartphone, and the caller must operate the touch control of the smartphone. The inconvenient operation caused by the screen, as well as the high cost of replacing the original dedicated switch.

The above are only the best possible embodiments of this invention. Any equivalent changes made by applying the description of this invention and the patent application scope should be included in the patent scope of this invention.

10: External voice switchboard system

11:Telecom connection port

12: Processing device

121: Voice processing module

121a: Dialog management unit

121b: Speech recognition unit

121c: Natural Language Understanding Unit

121d: Speech synthesis unit

12a: Signal converter

123:Internet telephone switching module

13:Database

14:Network port

Claims (10)

An external voice switchboard system is used to connect to a private exchange, wherein the private exchange is used to connect to a public switched telephone network. The private exchange has a plurality of telephone connection ports, and the telephone connection ports include a plurality of first telephones. The connection port and a second telephone connection port, each of the first telephone connection ports is used to connect a telephone; the private branch exchange transfers an incoming call signal from the public switched telephone network to the second telephone connection port; the The external voice switchboard system includes: a telecommunications connection port connected to the second telephone connection port; A processing device electrically connected to the telecommunications connection port and connected to the second telephone connection port through the telecommunications connection port. The processing device establishes a first call connection based on the incoming call signal; the processing device establishes a first call connection based on the first call connection An incoming call voice recognizes a call target information, and searches for at least one communication data corresponding to the call target information from a database, and the at least one communication data includes an extension number; the processing device sends a hold through the telecommunications connection port The signal and a dialing signal corresponding to the extension number are sent to the private branch exchange. When the processing device determines that the private branch exchange has established a second call connection corresponding to the extension number, the processing device disconnects the first call connection. As claimed in claim 1, the external voice switchboard system includes a network port for connecting to a network; wherein the at least one communication data includes a communication account, and the communication account is used for the The processing device is connected to an external electronic device through the network; the processing device sends a call request signal to the external electronic device corresponding to the communication account through the network connection port and sends the hold signal and the corresponding communication signal through the telecommunications connection port. The dialing signal of the extension number is sent to the private branch exchange; when the processing device determines that the private branch exchange establishes the second call connection corresponding to the extension number, the processing device stops transmitting the call request signal; when the processing device determines that the private branch exchange establishes the second call connection corresponding to the extension number; The exchange has not yet established the second call connection corresponding to the extension number, and when the external electronic device responds to the call request signal, the processing device transfers the first call connection to the external electronic device. The external voice switchboard system as described in claim 1, wherein after the processing device transmits the hold signal and the dial signal, it is determined when the sound intensity of a response voice signal transmitted from the private branch exchange is greater than a threshold. The second call connection corresponding to the extension number is established for the private branch exchange. The external voice switchboard system as described in claim 1, wherein after the processing device transmits the hold signal and the dial signal, when a response voice signal from the private branch exchange is not detected within a predetermined time period, It is determined that the private branch exchange establishes the second call connection corresponding to the extension number. The external voice switchboard system according to claim 1, wherein the processing device includes a voice processing module, and the voice processing module includes a dialogue management unit, a voice recognition unit and a natural language understanding unit, and the voice management unit Receive the incoming call voice and send the incoming call voice to the speech recognition unit. The voice recognition unit recognizes the incoming call voice and converts it into an incoming call text and sends it to the dialogue management unit. The dialogue management unit sends the incoming call text to the The natural language understanding unit parses the incoming call text, and when the natural language understanding unit determines that the incoming call text contains the conversation target information, the natural language understanding unit transmits the conversation target information to the dialogue management unit. The dialogue management unit Search the database for the at least one communication data corresponding to the recipient information based on the recipient information. The external voice switchboard system as described in claim 5, wherein the at least one communication data includes an auxiliary data; the receiving target information includes a plurality of search conditions, and the dialogue management unit is based on one of the search conditions of the receiving target information When the corresponding at least one communication data is searched from the database, and the conversation management unit matches the other search condition of the call target information with the auxiliary data person, the hold signal and the communication data are transmitted through the telecommunications connection port. The dialing signal. As claimed in claim 6, the external voice switchboard system is characterized in that the speech processing module includes a speech synthesis unit; when the dialogue management unit compares the auxiliary data with another search condition of the recipient target information, it sends A reply text is sent to the speech synthesis unit, and the speech synthesis unit converts the reply text into a reply voice, and plays the reply voice in the first call connection. As claimed in claim 6, the external voice switchboard system is characterized in that the at least one communication data includes an auxiliary data; the speech processing module includes a speech synthesis unit; and the dialogue management unit searches from the database based on the recipient information. When the at least one communication data corresponding to the recipient information is plural, a reply text is sent to the speech synthesis unit, and the speech synthesis unit converts the reply text into a reply voice, and connects the first call Play the reply voice in the first call connection. When there is another incoming call voice in the first call connection, the conversation management unit receives the other incoming call voice and transmits the other incoming call voice to the speech recognition unit. The speech recognition unit Recognize the voice of another incoming call and convert it into another incoming call text and send it to the conversation management unit. The conversation management unit sends the other incoming call text to the natural language understanding unit. The natural language understanding unit parses the other incoming call text. , and when it is determined from the text of another incoming call that there is an auxiliary search condition, the auxiliary search condition is sent to the conversation management unit. When the conversation management unit compares only one auxiliary data of the communication data that meets the auxiliary search condition , then the hold signal and the corresponding dial signal of the extension number of the communication data are transmitted through the telecommunications connection port. The external voice switchboard system as described in claim 8, wherein when the dialogue management unit compares more than two auxiliary data of the communication data that all meet the auxiliary search conditions, the hold signal is transmitted through the telecommunications connection port. and another dialing signal corresponding to a preset extension number to the private branch exchange. When the conversation management unit determines that the private branch exchange establishes a third call connection corresponding to the preset extension number, the conversation management unit disconnects the third call connection. One call connected. The external voice switchboard system as described in claim 1, wherein when the processing device does not search the at least one communication data corresponding to the call target information from the database, the processing device sends the hold signal and the communication data through the telecommunications connection port. Another dialing signal corresponding to a preset extension number is sent to the private branch exchange. When the processing device determines that the private branch exchange establishes a third call connection corresponding to the preset extension number, the processing device disconnects the first call connection. String.

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