JPH0124462B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention: The present invention virtualizes the connection location of a communication terminal not only for telephone calls but also for non-telephone communication such as facsimile and data communication, and uses a personal number to make the communication terminal as if it were unique to the individual. This relates to a virtual terminal communication system that allows personal information management such as outgoing calls, incoming calls, and billing.

Technical background: Existing communication systems such as landline telephones, car telephones, and facsimile communications use communication terminals (if multiple terminals are connected to one subscriber line, that subscriber line is considered a communication terminal) or Each mobile device is given a number that can be uniquely identified within its communication system, and when the caller dials this number, the calling terminal and the other party's terminal are connected and communication is performed. ing.

There are also proposals for preparing a personal number separate from the telephone number and having calls received there by registering the personal number.

Prior Art and Problems: As mentioned above, in the conventional configuration of commonly implemented communication systems such as landline telephones, car telephones, and facsimile communications, communication is connected by the caller's dial. The other party's terminal is fixed by a number, and if the intended communication party is not near the terminal, the call will be invalid, or the information to be conveyed to the intended communication party will arrive late. There were flaws. Furthermore, even if the other party is near a public telephone, there is no way to inform the caller, and even if the caller somehow finds out, he or she will have to know the number of the public telephone and dial it. It is almost impossible to perform such a task, and even though the communication terminal originally had the function of receiving calls as well as making calls, it had the disadvantage that it had to be limited to only making calls.

Furthermore, even with the proposal to prepare a personal number separately from a telephone number, it was not possible to charge a fee based on the personal number when making a call, simply by allowing the call to be received by a registered telephone.

Furthermore, if the same subscriber owns multiple different communication terminals, such as a home phone, a work phone, and a car phone, all of the communication terminal numbers are different, so calls to that subscriber cannot be received. Another drawback was that the caller had to predict where he or she would be among a number of different communication terminals and then dial a different communication terminal number for each of them.

Furthermore, like a landline phone, for example, it is always available to receive calls and can receive calls from all other phones connected to the telephone network, so even if the called party does not want to receive a call, such as late at night, it is not necessary or urgent. Another drawback was that I had no choice but to answer incoming calls.

Object of the invention: The object of the invention is to solve these drawbacks:
The subscriber number and communication terminal number are separated and used together, and a home memory corresponding to a predetermined subscriber number is installed in the communication network, making it possible to use not only telephone calls but also non-telephone communications such as facsimile and data communications. The connection location of the communication terminal is virtualized, and personal information such as outgoing calls, incoming calls, and billing can be managed using a personal number as if it were a communication terminal unique to that individual.In addition, it is possible to manage personal information such as outgoing calls, incoming calls, and billing as if it were a communication terminal unique to that individual. Even if there is a problem, you can manage it as a personal number as if it were your own, and dial the subscriber number of the called party without being aware of which terminal the called party is registering from. An object of the present invention is to provide a virtual terminal communication system that allows a user to connect to a terminal registered by a subscriber on the receiving side.

The structure of the present invention that achieves the above object is as described in the claims.

Embodiments will be described in detail below based on the drawings.

Embodiment of the invention: FIG. 1 shows an embodiment of the invention, in which 110 is a switch, 210, 220, 230 are communication terminals, and 31
0 is a home memory, 410, 420, 430 are subscribers, 111 is an exchange signal control device, 112 is an exchange information line control device, 113 is an exchange information line switching device, 211, 221, 231 is a terminal control device, 212, 222 , 232 is a terminal information device, 4
11,421,431 is a subscriber number storage device, 5
11,521,531 are information signal lines, 512,
522, 532 and 612 represent control signal lines.

The exchange 110 has communication terminals 210, 220, 23
0, information signal lines 511, 521, 531 and control signal lines 512, 522, 532,
It is connected to the home memory 310 via a control signal line 612. Subscriber number storage device 41
1,421,431 stores information, such as a magnetic card, and subscribers 410,420,
A unique number is stored corresponding to 430.

The communication terminals 210, 220, 230 have a memory M of a communication terminal number that can be uniquely identified in the communication method in addition to the subscriber number in each terminal control device 211, 221, 231, and Input subscriber number storage device 411, 421, 4
means 1 for transmitting a control signal obtained by converting the subscriber number stored in 31, information regarding its registration or deregistration, and a communication terminal number to the exchange 110 through control signal lines 512, 522, 532; The calling number inputted by the operation, its subscriber number, and the subscriber number of the communication partner are sent to the exchange 110 through control signal lines 512, 522, 532.
and means 3 for receiving an incoming signal transmitted from the exchange 110 through the control signal line 512, 522, 532, and transmitting voice, data, or image information to the terminal information device 212, 222, 232, or the like. and means 4 for transmitting and/or receiving information obtained by combining any one or more of the above to/from the exchange.

The exchange 110 receives the subscriber number, the control signal related to registration or cancellation of registration, and the communication terminal number transmitted from each of the communication terminals 210 , 220 , and 230 to the exchange signal control device 111 , and stores the received subscriber number and the communication terminal number in the home memory 310 . Means 5 for transmitting through signal line 612 and communication terminals 210, 220, 23
The calling number, subscriber number, and subscriber number of the communication partner transmitted from each of The communication terminal number in which the user's subscriber number is registered and the communication terminal number in which the communication partner's subscriber number is registered are received and transmitted to the exchange information line control device 112, and the communication terminal 210, 220, 230 through any one of the control signal lines 512, 522, 523, and the exchange information line control device 112 is provided with means 6 for transmitting an incoming signal to one of the control signal lines 512, 522, 523. means 7 for selecting one of the information signal lines 511, 521, 531 to which any one of the information signal lines 511, 521, and 531 is connected and instructing the exchange information line switching device 113 to connect them; Information line 51
1, 521, and 531, and includes means 8 for connecting and opening them.

The home memory 310 receives the subscriber number, a control signal related to its registration or deregistration, and a communication terminal number transmitted from the exchange 110, and registers the subscriber number at a predetermined memory address corresponding to the subscriber number. Write the corresponding communication terminal number,
The communication terminal number written in response to the cancellation is deleted. Also, an outgoing signal transmitted from the exchange 110,
The subscriber number of the caller and the subscriber number of the communication partner are received, the communication terminal number written in the memory address corresponding to the subscriber number of the caller and the communication partner is read out, and the control signal line 61 is sent to the exchange 110.
2.

For example, there are 4 subscribers to the communication system with the above configuration.
10 inserts the subscriber number storage device 411 into the nearest communication terminal, for example, the terminal control device 211 of 210, and requests registration of the subscriber number by pressing a registration button, for example, and the terminal control device 211 reads the subscriber number, A control signal related to registration and a communication terminal number given to the communication terminal 210 are added thereto and transmitted to the exchange 110 via the control line 512. The exchange signal control device 111 of the exchange 110 receives these and transmits them to the home memory 310 through the control signal line 612, and the home memory 310 receives the communications transmitted to a predetermined memory address corresponding to the subscriber number. Write the terminal number.

From one communication terminal, for example 210, to a plurality of subscribers, for example 420 as a second subscriber, also subscriber 4
Registration can be performed in the same manner as in 10. It is assumed that subscriber 430 has registered from communication terminal 220 in the same manner.

Next, another subscriber, e.g. 430, who wishes to communicate with subscriber 410, uses a nearby communication terminal, e.g.
When the subscriber number storage device 431 is inserted into the terminal control device 221 of 20, a call is requested by pressing the call button or lifting the hook, and the subscriber number of the communication partner 410 is dialed, the terminal control device 221 transmits the subscriber number of the caller 430, a control signal regarding the call, and the subscriber number of the communicating party 410 to the exchange 110 via the control signal line 522. Exchange signal control device 1 of exchange 110
11 receives these and transmits them to the home memory 310 via the control line 612. Home memory 3
10 reads out the communication terminal numbers written in the memory addresses corresponding to the calling and respective subscriber numbers and transmits them to the exchange 110 through the control signal line 612. Exchange signal control device 1 of exchange 110
11 receives these and transmits them to the exchange information line control device 112, and also transmits an incoming signal to the communication terminal 210 through the control signal line 512.
The exchange information line control device 112 is the communication terminal 21
0 and 220 are selected, and instruct the exchange information line switching device 113 to connect them. Based on this, the exchange information line switching device 113 connects the information signal lines 511 and 521. Communication terminal 21
0 notifies the subscriber of the incoming call based on the incoming call signal, and activates the terminal information device 210 in response to a response from the subscriber 210 on the receiving side, such as a hook-off, to begin communication.

A communication terminal with a registered subscriber number, e.g. 2
To cancel the registration of a subscriber from 10 to 410, for example, press the cancellation button in the same way as in the case of registration, or pull out the subscriber number storage device 411 that has been inserted since registration. As a result, a request for cancellation is sent to the home memory 310 via the exchange 110, and the communication terminal number is deleted from the memory address of the corresponding subscriber number.

If a subscriber, for example 430, wants to make a call and the subscriber number has not been registered yet, the communication terminal on the calling side, for example 220, should assign a terminal number and send it to the exchange 110 during the above calling operation. Memory registration operations can also be performed.

Communication terminal 21 used in the present invention explained above
FIG. 2 shows an example of a more detailed configuration of 0, 220, and 230, FIG. 3 shows an example of the exchange 110, and FIG. 4 shows an example of the home memory 310.

In FIG. 2, the subscriber number input section 2111 (corresponding to means 1) is realized by, for example, a magnetic card reader, and inputs the subscriber number from the subscriber number storage device 411 inserted by the subscriber's operation. Information regarding registration or cancellation is read out, converted into a control signal composed of, for example, a digital signal, and sent to the terminal control section 2117, and the dial section 2112
(corresponding to means 2) is composed of, for example, a dial on an existing telephone, and sends the subscriber number of the communication partner input by the subscriber's operation to the terminal control section 2117 in the form of a digital signal, and displays the incoming call display. 2113 (corresponding to means 3) is composed of one or a combination of the ring bell or buzzer of an existing telephone, or the display of a calculator, and responds to the control signal sent from the terminal control unit 2117. The incoming call is displayed and/or its contents are displayed accordingly, and the communication terminal number memory section 2114 (memory M
(equivalent to) is composed of, for example, an IC memory, stores a number unique to the communication terminal, and is connected to the terminal control unit 21.
17, the communication terminal number is sent to the terminal control unit 2117, and the control signal sending unit 2115 is composed of, for example, a digital signal encoder and a signal modulator.
The control signal sent from 7 is connected to the control signal line 51.
The control signal receiving unit 2116 is composed of, for example, a signal demodulator and a digital signal decoder, and
12 and sends it to the terminal control section 2117.
121 is composed of, for example, a transmitter in the case of a telephone;
The information signal receiving section 2122 is composed of, for example, a telephone receiver, and the disconnection state of both the information signal transmitting section 2121 and the information signal receiving section 2122 is controlled based on a control signal from the terminal control section 2117, and the terminal control The unit 2117 is composed of, for example, a microprocessor and a program memory for performing the control described above.

In FIG. 3, the control signal transmitting and receiving section 1111, 1
112 and 1113 are configured similarly to the control signal transmitting section 2115 and the control signal receiving section 2116 in the communication terminal 210, and the control signal controlling section 111
Based on the instructions from 5, the communication terminals 210, 220,
230, and sends a control signal to the communication terminal 210, 2.
Based on the control signals sent from 20 and 230, the control signal controller 1115 is notified that the control signal has arrived, and the control signal is sent to the control signal concentrator/distributor 111.
The control signal concentrator/distributor 1114 is composed of, for example, a time division switch, and transmits the control signals from the plurality of communication terminals 210, 220, 230 to the control signal controller 1115 based on instructions from the control signal controller 1115. The control signal control unit 1115 is configured by, for example, a microprocessor and a program memory. , based on instructions from the control signal transmitting/receiving sections 1111, 1112, 1113 and the central control section 1120, instructs to connect the input and output of the control signal concentrating/distributing section 1114, and controlling the control signal transmitting register section 1116 and the control signal transmitting/receiving section. 1111, 1112, 111
3, the control signal transmission register section 1116 and the control signal reception register section 1117 temporarily store the control signals, and the control signal control section 1115 and the central control section 1
120, control signal transmitting section 1118, control signal receiving section 1
Reference numeral 119 has the same configuration as the control signal transmitter 2115 and control signal receiver 2116 in the communication terminal 210 in FIG. Transmission section 11
18 and from the control signal receiving section 1119 to the control signal transmission register section 1116, and instructing the connection control device 112 to connect the information signal lines 511, 521, 531 at the time of incoming and outgoing calls based on the contents of the control signal. Then, the connection control device 112 detects the mutual communication status of the communication terminals 210, 220, and 230, and sends billing control and the resulting control signal to the control signal sending unit 1118 (the above configuration is the means 5).
and means 6), the connection control device 112 is composed of, for example, a processor and a program memory, and connects the information signal line 5 based on instructions from the central control section 1120.
11, 521, 531 to the information signal line connection unit 113, and connect the information signal lines 511, 52.
1,531 communication status from the information signal line connection section 11
3 and sends it to the central control unit 1120 (corresponding to means 7).The information signal line connection unit 113 is composed of, for example, a crossbar switch in a crossbar switch of a telephone network or a time division switch in a time division switch, and the information signal line 511,521,53
1 to each other, detect the communication state, and send it to the connection control device 112 (corresponding to means 8).

FIG. 4 shows an example of a detailed configuration of the home memory, in which the control signal transmitting section 3101 and the control signal receiving section 3102 are replaced by the control signal transmitting section 2115 and the control signal receiving section 211 in the communication terminal 210 of FIG.
6, the home memory control unit 310
4 consists of a processor and program memory,
Based on the control signal from the control signal receiving section 3102,
A control signal is written to the centralized file section 3105, and the control signal is read from the centralized file section 3105 and sent to the control signal transmitting section 3101. Consists of memory.

In addition, information signal lines 511, 521, 531,
In FIGS. 2 to 4 showing specific examples of the control signal lines 512, 522, 532, and 612, the upstream and downstream lines are shown as separate transmission lines that are spatially separated, but they are similar to existing various transmission lines. As stated in the method, even if there is one transmission line spatially, for example a cable made of a pair of wires, if it is separated in the frequency band of electrical signals or time divisionally as in the case of digital signals. It can work similarly. Further, it is not necessary to spatially separate the information signal line and the control signal line in each section. Furthermore, these sections do not need to be wired transmission lines, and may be wireless transmission lines, such as in a car telephone system, for example.

In the above communication method, the home memory 310
Usually, a predetermined communication terminal number is written in a predetermined memory address corresponding to the subscriber number, and the subscriber registers the subscriber number from a communication terminal other than that communication terminal. If you cancel the registration, please write it down; if you cancel the registration, delete the latter's communication terminal number; and if there is the latter's communication terminal number when the exchange transmits the outgoing signal and subscriber number, send it back. , if the caller dials the subscriber number of the communication partner, by sending back the communication terminal number of the former,
It is possible to prevent an invalid call from which no information can be obtained because a registered communication terminal cannot be found.

In the above communication method, a PIN number known only to the subscriber is added to the subscriber number given to the subscriber, and the subscriber number is used when registering or canceling registration from a communication terminal and when making a call for communication. Enter the whole number with the PIN number added as the subscriber number, enter the subscriber number that is not added to the subscriber number of the communication partner, and enter the PIN number attached to the caller's subscriber number in the home memory. Loss of subscriber number storage device 411, 421, 431 can be prevented by sending back the communication terminal number written there only when the PIN number written in advance in the memory address of the subscriber number matches. This can prevent the risk of unauthorized use by others.

In the above communication system, the subscriber numbers of either or both of the caller and the communication partner are included in the incoming signal transmitted from the exchange to the communication terminal of the communication partner, and the subscriber numbers are displayed on the communication terminal. Even when a plurality of subscribers have registered their subscriber numbers from one communication terminal, it is possible to determine to whom the call is being received.

In the above communication method, when registering a subscriber number from a communication terminal, add and input the subscriber number of the communication partner whose incoming calls are to be allowed or rejected to that subscriber, and enter the subscriber number of the registered subscriber in the home memory. By writing the subscriber number of the communication partner in the memory address of the subscriber, and connecting only when the subscriber receives a call from an acceptable communication partner, unnecessary and non-urgent incoming calls can be rejected at the request of the receiving subscriber.

In the above communication method, if the registration of a subscriber number from a communication terminal can also be canceled by registering the subscriber number from another communication terminal, it is possible to forget to cancel the registration of the subscriber number. This reduces the possibility that an incoming call will reach a communication terminal where no subscriber exists.

Even if a plurality of exchanges are configured in the above communication system, each exchange is given a uniquely identifiable exchange number within the communication system, and the exchange number is used when transmitting the communication terminal number to the home memory. When adding and writing the communication terminal number to home memory,
When sending the communication terminal number to the exchange, by adding the exchange number, communication can be performed in the same manner as described above. This means that even communication terminals with different characteristics, such as fixed telephones, automobile telephones, and train telephones, can be mutually connected using the same subscriber number.

FIG. 5 shows an embodiment showing the configuration of the present invention in the case where a plurality of exchanges are configured as described above. Of Figure 5, the new addition to Figure 1 is switchboard 11.
0 and 120, and the home memory 310 is configured so that it can be accessed in common from a plurality of exchanges 110 and 120.

A subscriber, for example 410, of a communication system having the above configuration and functions inserts the subscriber number storage device 411 into the terminal control device 261 of 260, the nearest communication terminal at his/her destination, and presses a registration button. When requesting registration of a number, the terminal control device 261 reads the subscriber number and transmits it through the control line 562 to the exchange 120 to which a control signal regarding the registration and the communication terminal number given to the communication terminal 260 is added. The exchange signal control device 121 of the exchange 120 receives these, adds its own exchange number, and transmits them to the home memory 310 via the control signal line 622.
0 writes the transmitted exchange number and communication terminal number into a memory address predetermined corresponding to the subscriber number. One communication terminal, for example 26
0 to a plurality of subscribers, for example 420 as a second subscriber, can be registered in the same manner as subscriber 410. It is assumed that subscriber 430 has been registered from communication terminal 220 in the same manner.

Next, another subscriber, e.g. 430, who wishes to communicate with subscriber 410, uses a nearby communication terminal, e.g.
When the subscriber number storage device 431 is inserted into the terminal control device 221 of 20, a call is requested by pressing the call button or lifting the hook, and the subscriber number of the communication partner 410 is dialed, the terminal control device 221 The subscriber number of the caller 430, a control signal regarding the call, and the subscriber number of the communication partner 410 are transmitted to the exchange 110 through the control signal line 522. The exchange signal control device 111 of the exchange 110 receives these, adds its own exchange number, and transmits them to the home memory 310 via the control line 612.

Home memory 310 reads out the exchange number and communication terminal number written in memory addresses corresponding to the subscriber numbers of the caller and the communication partner, and transmits them to exchange 110 through control signal line 612. The exchange signal control device 111 of the exchange 110 receives these and sends them to the exchange information line control device 112.
At the same time, the subscriber number of the communication partner and the incoming call signal are sent to the exchange 120 via the control signal line 720. The exchange information line control device 112 of the exchange 110 includes an information signal line 521 to which the communication terminal 220 and the exchange 120 are connected, respectively.
710 and instructs the exchange information line switching device 113 to connect them. Based on this, the exchange information line switching device 113 switches the information signal line 521
and 710.

The exchange signal control device 121 of the exchange 120 receives the subscriber number and the incoming signal from the exchange 110 and transmits it to the exchange information line control device 122, and also transmits the incoming signal to the communication terminal 260 through the control signal line 562. The exchange information line control device 122 has information signal lines 561 and 7 to which the communication terminal 260 and the exchange 120 are connected, respectively.
10 and instructs the exchange information line switching device 123 to connect them. Based on this, the exchange information line switching device 123 connects the information signal lines 561 and 710. The communication terminal 260 notifies the subscriber of the incoming call based on the incoming signal, and the subscriber 2 on the called side
The terminal information device 210 is activated by a response of 60, for example, a hook-off, and communication begins.

In a communication system where the communication terminal (telephone) and switching terminal of the exchange are connected in a one-to-one correspondence, such as in a general fixed-line telephone, the communication terminal number is stored in the communication terminal or sent to the exchange. There is no need for a function to do this, and it is possible to provide that function to the exchange.

Effects of the Invention: As explained above, the communication system of the present invention separates subscriber numbers and communication terminal numbers and uses them together, and installs a home memory predefined in correspondence to the subscriber number in the communication network. The system enables a subscriber to register and unregister his or her subscriber number from any communication terminal in the subscriber's home memory, and allows the communication terminal number to be retrieved from the subscriber numbers of the caller and the called party. It is a device that can be read and connected within a communication network, and both the originating subscriber and the terminating subscriber can assume that an unspecified number of communication terminals using this communication method are the communication terminals of a specific subscriber. Can communicate. Therefore, if applied to a system that basically performs one-to-one communication with many communication terminals, such as a telephone network, for example, (1) communication can be performed immediately when desired without being aware of the location of the communication partner, that is, the called party can join For example, magnetic card 1
Simply holding the card while walking can equivalently become a mobile communication.
(2) One communication terminal can be shared by multiple subscribers in a time-divided manner for making and receiving calls, and (3) the same subscriber number system can be used even when communication systems have different characteristics, such as landline telephones and car telephones. It has the advantage of being able to provide services inside the facility.

[Brief explanation of drawings]

Figure 1 shows an embodiment of the present invention, Figure 2 shows an example of the configuration of a communication terminal, Figure 3 shows an example of the configuration of an exchange, Figure 4 shows an example of the configuration of a home memory, and Figure 5 shows implementation when there are multiple exchanges. This is an example. 110,120...Switching equipment, 111,121...Switching signal control device, 112,122...Switching information line control device, 113,123...Switching information line switching device, 210,220,230,240,2
50,260...Communication terminal, 211,221,23
1,241,251,261...terminal control device, 2
12,222,232,242,252,262
... Terminal information device, 310 ... Home memory, 41
0,420,430,440,450,460...
Subscriber, 411,421,431,441,45
1,461...Subscriber number storage device, 511,52
1,531,541,551,561...information signal line, 512,522,532,542,55
2,562,612,622...control signal line, 2
111...Subscriber number input section, 2117...Terminal control section, 2112...Dial section, 2113...Incoming call display section, 2114...Communication terminal number memory section, 2115
...Control signal transmitter, 2116...Control signal receiver,
2121... Information signal transmitting/receiving section, 2122... Information signal receiving section, 1111, 1112, 1113... Control signal transmitting section, 1115... Control signal controlling section, 111
4... Control signal concentration distribution section, 1117... Control signal reception register section, 1116... Control signal transmission register section, 1120... Central control section, 1118... Control signal transmission section, 1119... Control signal reception section, 3101...
Control signal transmitter, 3102...Control signal receiver, 3
104... Home memory control unit, 3105... Centralized file unit, 710... Information signal line connecting between the exchanges 110 and 120, 720... Control signal line connecting between the exchanges 110 and 120.

Claims (1)

[Claims] 1. Subscriber, communication terminal, exchange, home memory,
In the communication system, the subscriber of the communication system is composed of an information signal line and a control signal line that connect the communication terminal and the exchange, and a control signal line that connects the exchange and the home memory. The subscriber inputs registration or deregistration of the subscriber number from the communication terminal, and registers the communication method separately from the subscriber number on the communication terminal. A communication terminal number that uniquely identifies the communication terminal is assigned to the communication terminal, and the communication terminal transmits the subscriber number input by the subscriber's operation and a control signal regarding registration or deregistration of the subscriber number. In a communication method in which a control signal is transmitted to the exchange through a control signal line, the communication terminal transmits the outgoing signal input by the subscriber's operation, the subscriber number of the subscriber, the communication terminal signal, and the subscriber number of the communication partner. It transmits to the exchange through a control signal line, receives the incoming signal, subscriber number, and communication terminal number transmitted from the exchange through the control line, and receives voice, data, and image information, or any of the voice, data, and image information. The exchange transmits, receives, or both transmits and receives information that is a combination of multiple information to and from the exchange, and the exchange registers or deregisters the subscriber number transmitted from the communication terminal and the subscriber number. A control signal and a communication terminal number related to the communication terminal are received and transmitted to the home memory through the control signal line, and a calling number, a subscriber number, and a communication partner's subscriber number transmitted from the communication terminal are received and the communication terminal number is sent to the home memory. a communication terminal number in which the subscriber number of the caller transmitted from the home memory through the control communication line is registered, and a communication terminal number in which the subscriber number of the communication partner is registered; , selects an information signal line to which each of the communication terminals is connected, connects each of the communication terminals, and transmits an incoming signal to the communication terminal of the communication partner through the control line, and the home memory Receives the subscriber number transmitted from the exchange, a control signal related to registration or deregistration of the subscriber number, and the communication terminal number, and registers the subscriber number at a predetermined memory address corresponding to the subscriber number. Correspondingly, the communication terminal number is written, and in response to the cancellation, the written communication terminal number is erased, and the outgoing signal transmitted from the exchange, the subscriber number of the caller, and the subscriber number of the communication partner are received. , a virtual terminal communication system characterized in that communication terminal numbers written in memory addresses corresponding to subscriber numbers of the caller and the communication partner are read out and sent to the exchange through a control signal line. 2. The home memory usually writes a predetermined communication terminal number in a predetermined memory address corresponding to the subscriber number in the home memory, and the subscriber subscribes from a communication terminal other than the communication terminal. If you have registered a user number, add the communication terminal number of a communication terminal other than the communication terminal,
If the registration is canceled, the communication terminal number of the communication terminal other than the communication terminal will be deleted, and if the communication terminal number of the communication terminal other than the communication terminal is found when the outgoing signal and subscriber number are sent from the exchange, Claim 1 characterized in that the communication terminal number is sent back, and if the communication terminal number does not exist, a communication terminal number predetermined and written in correspondence with the subscriber number in the home memory is sent back. The virtual terminal communication method described in Section 1. 3. A PIN number known only to the subscriber is added to the subscriber number added to the subscriber, and the communication terminal
When registering or canceling registration from the communication terminal or making a call for communication, enter the subscriber number of the caller of the communication terminal plus the above-mentioned PIN number as the subscriber number, and enter the subscriber number of the communication partner. Enter the PIN number without any additions as the subscriber number, and the home memory contains the PIN number added to the caller's subscriber number and the memory address of the subscriber number written in advance. 2. The virtual terminal communication method according to claim 1, wherein the communication terminal number written in the home memory is sent back only when the PIN number written in the home memory matches the PIN number. 4. The exchange is characterized in that the subscriber numbers of either or both of the caller and the communication partner are included in the incoming signal transmitted from the exchange to the communication terminal of the communication partner and displayed on the communication terminal. A virtual terminal communication system according to claim 1. 5. When registering a subscriber number from the communication terminal, add and input the subscriber number of the communication partner whose incoming calls are to be permitted or rejected for the subscriber registering the subscriber number, and enter the subscriber number of the communication partner in the home memory. Claim 1, characterized in that the subscriber number of the communication partner is written in the memory address of the registered subscriber corresponding to the input, and when a call is received to the subscriber, connection is made only if the communication partner allows the incoming call. Virtual terminal communication method described. 6. The virtual terminal communication system according to claim 1, wherein a plurality of subscriber numbers are registered and unregistered from the same communication terminal. 7. The virtual terminal according to claim 1, wherein the registration of the subscriber number from the communication terminal is canceled by registering the subscriber number from a communication terminal other than the communication terminal. Communication method. 8. The switching equipment immediately identifies the information communication line to the communication terminal connected to the switching equipment when registering a subscriber number, canceling registration, receiving an outgoing signal, and receiving a call to the communication partner, 2. The virtual terminal communication system according to claim 1, wherein a communication terminal number of the communication terminal is not assigned to the communication terminal.