JPH04255146A - Connection control method in automatic exchange system and subscriber equipment used therefor - Google Patents

Abstract

PURPOSE:To realize the exchange system with high servicability in which a called subscriber receives a phone call efficiently by permitting only an incoming call from a registered subscriber in advance and inhibiting an incoming call from other subscribers. CONSTITUTION:A telephone number of a caller 2 allowing the arrival of the call with a SW 12 of a called party 12 closed is registered to a storage circuit 13 through a dialer. When the caller 2 dials the telephone number of the called party 1, an outgoing register trunk 5 of an exchange 50 receives the dial signal via a network 4. When a central controller 9 recognizes it that the caller 2 dials the called party 1, the telephone number of the caller 2 is indexed from an accommodation position from the network 4 and a reception circuit 14 sends the number via a caller number transmitter 7. Then the number is collated with the number of the caller 2 registered in a storage circuit 13 and confirmed, then a telephone circuit 11 is brought into a call signal receptible state and the subscriber terminal equipment is connected to a talking device 6 so as to attain the talking between the called party 1 and the caller 2. Moreover, when the unregistration is recognized, a regulation voice is sent and the talking is disabled.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic switching system, and more particularly to a method for controlling connection to a called party in an automatic switching system.

0002

[Prior Art] In a conventional automatic switching system, when performing exchange processing for a plurality of subscriber terminals accommodated, if the called terminal is empty, it sends a paging signal to the called terminal and makes a call. Sends a ring tone to the side terminal. Then, when the called terminal goes off-hook, these terminals are connected by a communication path device. Furthermore, if the called terminal is busy, the automatic exchange sends a busy tone to the calling terminal to inform it that the call is in progress.

0003

[Problem to be Solved by the Invention] As described above, the connection control of conventional automatic exchanges simply determines whether the called terminal is empty or not, and if it is empty, the connection process is automatically performed. there were. Therefore, even if the calling party makes a call for the purpose of harassment or prank, or makes a wrong call, the call will be automatically received, and the called party can be prevented from receiving such nuisance calls. There wasn't. Furthermore, some subscribers may wish to reject incoming calls during certain times, but it is not possible to temporarily prohibit incoming call processing in such cases, so the exchange system has low serviceability. .

[0004] In order to solve the drawbacks of the prior art, the present invention provides a connection in an automatic switching system that permits or restricts incoming calls from a caller depending on whether or not the called party has registered permission to receive incoming calls. The purpose of this invention is to provide a control method and subscriber equipment used therefor.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a connection control method in an automatic switching system that controls connections between subscribers, in which a subscriber terminal allows incoming calls in advance. When the automatic switchboard detects a call from the subscriber terminal it accommodates,
The telephone number of the calling subscriber terminal is sent to the called subscriber terminal, and when the called subscriber terminal receives the telephone number of the calling subscriber terminal, the calling subscriber terminal accepts the call. It is confirmed whether the subscriber terminal is registered as an acceptable subscriber terminal, and if it is not registered, the subscriber terminal that made the call is notified that incoming calls are being restricted.

According to the present invention, the subscriber device used in the above-mentioned system includes a storage means for registering the telephone numbers of subscriber terminals that are allowed to receive calls, and a storage means for registering telephone numbers of subscriber terminals that are allowed to receive calls, and receiving means for receiving the telephone number of the user terminal; identification means for identifying whether the telephone number sent from the exchange is registered in the storage means; and when it is confirmed by the identification means that the telephone number is not registered. and a restriction means for notifying the subscriber terminal that made the call that the restriction is in effect.

According to the present invention, the automatic exchange used in the above-described method indexes the telephone number of the calling subscriber terminal from the accommodation position, and transfers the indexed telephone number to the called subscriber terminal. send to

[0008]

[Operation] According to the present invention, when a first subscriber terminal specifies a specific caller and registers the telephone number, the first subscriber terminal receives a call from the registered subscriber. If a call is received from an unregistered subscriber, the call is rejected, and the rejected subscriber is notified that the call is restricted.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of a connection control method in an automatic switching system according to the present invention and subscriber equipment used therein will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a configuration diagram of an exchange system in this embodiment. The called party 1, the specific calling party 2, and the external calling party 3 are subscriber terminals housed in an exchange 50, which will be described later. Furthermore, the called party 1 whose functional blocks are shown is a subscriber terminal in this embodiment that has a setting function for incoming call permission.

As shown in the figure, the called party 1 is composed of a telephone circuit 11, a switch (SW) 12, a memory circuit 13, a receiving circuit 14, a call identification circuit 15, a regulation circuit 16, a hook switch 17, etc. has been done.

[0012] The telephone circuit 11 is a well-known telephone circuit that is built into an ordinary telephone and is comprised of a telephone call circuit, a signal circuit, and the like. The switch 12 is a switch that is operated to the make state when registering the telephone number of the calling party terminal to which incoming calls are permitted. The storage circuit 13 is a storage device that stores the telephone numbers of the calling party 2, the calling party 3, and the like. The receiving circuit 14 is a circuit that receives the calling party's telephone number from the exchange 50 side. The caller identification circuit 15 is a circuit that identifies whether the caller who called the called party 1 is a subscriber registered in the storage circuit 15. The restriction circuit 16 is an incoming call restriction circuit that monitors calls from subscribers who are not registered in the storage circuit 13 and sends out restriction talkies. The hook switch 17 is a switch that is in a make state as shown in the figure when it is on-hook, and in a break state when it is off-hook. The control circuit 18 includes the memory circuit 13,
This is a control device that controls the receiving circuit 14, call identification circuit 15, restriction circuit 16, etc., and performs settings such as permission and restriction of incoming calls from callers.

[0013] In this embodiment, the calling party 2 selects a specific calling party registered on the called party's telephone 1 side in order to allow the called party 1 to receive a call to the called party 1. show. Further, the calling party 3 indicates an external calling party who is not registered in the called party's telephone set 1.

The exchange 50 is a switching device capable of accommodating a plurality of subscriber terminals, and includes a network 4, a calling register trunk 5, a communication device 6, a calling number sending device 7, a calling trunk 8, a central control device 9, etc. It is made up of.

The network 4 is a line network accommodating subscribers, through which subscriber terminals are connected to a calling register trunk 5, a communication device 6, a calling number transmitting device 7, a ringing trunk 8, etc. Ru. The originating register trunk 6 is a device that receives, counts, and stores selection signals sent from subscriber terminals. That is, the calling register trunk 6 receives dialed digits from the calling parties 2, 3 and the called party 1. The communication device 6 is a communication path formed during communication between subscribers,
In this embodiment, communication between calling parties 2, 3, etc. and called party 1 is mediated. The calling party number sending device 7 is a device that sends the calling party's telephone number to the called party's terminal, and in this embodiment, the telephone numbers of calling parties 2 and 3 are sent to the called party 1. The paging trunk 8 is a paging trunk that sends out a paging signal (16 Hz, sent for 1 second, interrupted for 2 seconds) to call the telephone of the called party. The central control unit 9 is a control unit that controls each component of the exchange according to a call processing program and performs exchange processing between subscribers. That is, the central control device 9
For example, it has a function of transmitting the subscriber number of the calling party's terminal to the called party's terminal prior to connection control of the telephone device 6.

Next, the operation of this embodiment will be explained using FIG.

[0017] Registration of incoming call permission is performed by the following procedure. First, in order to connect the telephone circuit 11 and the memory circuit 13, the switch 12 of the called party 1 is set to the ON state, and the number corresponding to the telephone number of the calling party 2, who is to be permitted to receive the call, is input to the dial section of the telephone circuit ( (not shown). As a result, the dialed telephone number is registered in the memory circuit 13. Note that it is also possible to cancel the registered telephone number of the called party 1 by dialing a predetermined special number, for example, and once the telephone number is canceled, the calling party number can be arbitrarily set again. Further, in this embodiment, only one telephone number is registered, but a plurality of telephone numbers can be registered. When the registration of the calling party number is completed, the switch 12 is put into a break state (OFF).

Control of automatic call reception is performed by the following procedure. After the telephone number of calling party 2 is set to called party 1,
When the calling party 2 dials the telephone number of the called party 1, the telephone number of the called party 1 is received by the calling register trunk 5 of the exchange 50 through the calling party 2 - network 4 - calling register trunk 5 route. . The counting reception result of the originating register trunk 5 is sent to the central control unit 9. When the central controller 9 learns that the calling party 2 has made a call to the called party 1,
The telephone number of the calling party 2 is indexed from the storage location of the network 4. Then, the network 4 - called party 1 - hook switch 17 - receiving circuit 1 is transmitted through calling party number sending device 7.
Send this phone number using route 4. After the telephone number of the calling party 2 is received by the receiving circuit 14, it is sent to the storage circuit 13 under the control of the control circuit 18 in order to verify the telephone number. When the telephone number of the caller 2 is sent to the storage circuit 13, the control circuit 18 controls the caller identification circuit 15 to
The telephone number of the calling party 2 is compared with the telephone number registered in the storage circuit 13. As a result of the verification, the call identification circuit 15
When it is confirmed that the telephone number of the caller 2 is registered, the control circuit 18 puts the telephone circuit 11 into a state in which it can receive a calling signal. After a certain period of time, a paging signal is sent from the paging trunk 8, and when the called party 1 responds to this using the hook switch 17, the hook switch 17 is opened and the identification circuit of the calling terminal, such as the receiving circuit 14, is disconnected. Further, the paging trunk 8 detects a response from the hook switch 17 and notifies the central control device 9 of the response. When the central controller confirms the response of called party 1,
These subscriber terminals are connected to a telephone communication device 6 so that the subscriber 2 and the calling party 2 can communicate with each other.

Next, when the calling party 3 dials the telephone number of the called party 1, the calling register trunk 5 dials the telephone number of the called party 1 according to the route of calling party 3 - network 4 - calling register trunk 5. Receive. The calling register trunk 5 sends the counting reception result of the received telephone number to the central control unit 9. When the central control device 9 receives the telephone number sent from the calling party 3, the central control device 9 indexes the telephone number of the calling party 3 from the storage location of the network 4, and transmits the calling party number sending device 7.
This telephone number is then sent through the network 4 - called party 1 - hook switch 17 - receiving circuit 14 route. When the telephone number of the caller 3 is received by the receiving circuit 14, it is sent to the storage circuit 13 under the control of the control circuit 18 in order to verify the telephone number in the same manner as described above. When the telephone number of the caller 3 is sent to the memory circuit 13, the control circuit 18 controls the caller identification circuit 15 to identify the telephone number of the caller 2 and the telephone number registered in the memory circuit 13. Perform verification. As a result of the comparison, if a mismatch (unregistered) with the telephone number of the caller 3 is identified, the control circuit 18 activates the regulation circuit 16 . Upon this activation, the regulation circuit 16 sets the response state. On the other hand, the exchange 50 side connects the called party 1 to the paging trunk 8 after a certain period of time after transmitting the telephone number of the calling party 3 under the control of the central control device 9. As a result, the response signal from the regulation circuit 16 described above is transmitted to the paging trunk 8 via the network 4. When the central controller 9 reads that the paging trunk 8 has received the response signal, it switches the connection of the network 4 from the paging trunk 8 to the telephone device 6 . As a result, the calling party 3 receives a restriction voice from the restriction circuit 16 (for example, a voice such as "Called party 1 will not be able to answer for a while due to circumstances") via the network 4 - communication device 6 - calling party 3 route. Sent by In this way, the regulation voice is repeatedly sent to subscriber terminals that are not registered in the storage circuit 13. Note that this regulating sound is restored and stopped after a certain period of time under the control of the control circuit 18.

[0020] In this embodiment, a case has been explained in which the calling party to be restricted is identified using a telephone, but of course such a function may be provided outside the telephone to form a single subscriber device.
An additional device system may also be used in which this is connected to a telephone. Furthermore, although the present embodiment has been described with respect to an in-house exchange system as an exchange system, the present embodiment can be similarly applied to a system in which control is performed over inter-office systems. Furthermore, it is also possible to add a function such as providing a timer or the like for turning the hook switch 17 on and off, and setting the switch 17 to the ON state at a desired time to restrict incoming calls. Further, it may be possible to receive a call even from an unregistered telephone by dialing a special number for canceling the restriction on incoming calls.

[0021]

[Effects of the Invention] According to the present invention, when a call is received to a called party, the telephone number of the calling party registered by the called party is checked, and the call is received to the registered calling party. Since permission is given, it is possible to prevent incoming calls due to prank calls, harassing calls, silent calls, etc. It is also possible for the called party to prohibit incoming calls during specific hours. Therefore, according to the present invention, there is no need for the called party to answer unnecessary telephone calls, so that it is possible to provide a switching system with high serviceability for subscribers.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing an embodiment of a connection control method in an automatic switching system according to the present invention and a subscriber device used therein.

[Explanation of symbols]

1. Called party 2. Specific caller 3. Outside caller 4 Network 5 Outgoing register trunk 6　　　　　　　Telephone device 7 Calling number sending device 8 Call trunk 9 Central control unit 11 Telephone circuit 12 Switch 13 Memory circuit 14 Receiving circuit 15 Caller identification circuit 16 Regulation circuit 17 Hook switch 18 Control circuit 50　　　　　　　　　　　Exchange machine

Claims (3)

[Claims] Claim 1: In a connection control method in an automatic switching system that controls connections between subscribers, the subscriber side registers in advance the telephone numbers of subscriber terminals that are allowed to receive calls, and the automatic switch When a call is detected from a terminal, the telephone number of the subscriber terminal that made the call is sent to the called subscriber terminal, and the called subscriber terminal receives the telephone number of the subscriber terminal that made the call. Then, it is checked whether the subscriber terminal that made the call is registered as a subscriber terminal that allows incoming calls, and if it is not registered, a message is sent to the subscriber terminal that made the call to the effect that incoming calls are being restricted. A connection control method in an automatic switching system characterized by notification. 2. A subscriber device used in the system according to claim 1, which includes a storage means for registering telephone numbers of subscriber terminals that are allowed to receive calls, and a storage means for registering telephone numbers of subscriber terminals that are allowed to receive calls, receiving means for receiving a telephone number of a subscriber terminal; identification means for identifying whether or not the telephone number sent from the exchange is registered in the storage means; A subscriber device comprising: restriction means for notifying the calling subscriber terminal that the restriction is in effect when the call is confirmed. 3. In the automatic exchange used in the system according to claim 1, the exchange indexes the telephone number of the calling subscriber terminal from the accommodating position, and uses the indexed telephone number as the subscriber terminal of the called party. An automatic switchboard that is characterized by sending data to a user terminal.