JPH0575720A - Camp-on system - Google Patents

Abstract

PURPOSE:To prevent invalid use of an individual memory corresponding to an incoming subscriber of an incoming station exchange by releasing a circuit during a clearing waiting state of the incoming subscriber caused by camp-on. CONSTITUTION:In an incoming station exchange, an individual memory 8 is provided in accordance with an incoming terminal. In such a state, when an incoming terminal 2 is busy at the time of calling from a calling terminal 1, an identifier ID of the calling terminal 1 is stored in the individual memory 8. Also, when a circuit 13 between a switch 5 and a switch 6 is released, and the calling terminal becomes free, the calling terminal 1 is called by using the identifier ID. In such a way, circuit invalid use in a camp-on service of a pay station network is prevented and a service to a calling party can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camp-on system, and more specifically, in a public network service, when a called subscriber is busy and thereafter becomes idle, a calling terminal is called back. The present invention relates to a method of connecting a line when a calling subscriber responds, and particularly to a method of preventing invalid use of a line in a camp-on service and a method of improving service to a calling party.

[0002]

2. Description of the Related Art In a conventional public network camp-on system, as described in Japanese Patent Laid-Open Publication No. 63-244960, an incoming telephone or a terminal device (hereinafter collectively referred to as an incoming terminal) is busy or used. In the middle, the telephone number of the called terminal is stored in the memory of the calling exchange, the called terminal is repeatedly called from the calling switch, and when the called terminal becomes empty, the calling switch or calling terminal or terminal device (hereinafter called The term "terminal and generic name" is used to connect.

[0003]

In the above-mentioned conventional camp-on system, the line between the originating exchange and the destination exchange must be held during the waiting period while the telephone of the receiving terminal is busy, so that the incoming call is received. There was a problem that the line had to be held for camp-on until the terminal became empty, and the line was invalidated, and the calling subscriber could not predict how long the line would wait. An object of the present invention is to realize a camp-on system for preventing the invalid use of the line between the originating exchange and the terminating exchange or between the originating exchange and the transit exchange and for improving the service by allowing the caller to predict the waiting time. It is to be.

[0004]

In order to achieve the above object, the present invention provides an individual camp-on memory for a terminating subscriber who camps on a destination exchange or a repeater exchange, and when the terminating terminal is busy. In this system, the identifier (ID) of the calling terminal is stored in the destination exchange or the relay exchange, and the line connection between the source exchange and the destination exchange or between the source exchange and the relay exchange is temporarily released. In addition, when the camp-on registration is performed in advance from the receiving terminal, the size of the individual camp-on memory, that is, the number of permitted camp-on persons is set to prevent the waiting time from increasing. Furthermore, when the camp-on registrant is busy, the destination exchange or relay exchange identifies the rank in the above-mentioned individual memory of the calling terminal, and notifies the calling party of the connection status to the receiving terminal with a talkie. It is the one. This allows the caller to predict the approximate time.

[0005] Further, the calling terminal is notified that the called terminal is a camp-on registrant by a talkie or a signal tone to prevent the call opportunity from being missed. In a further preferred embodiment, the storing of the calling terminal identifier (ID) in the individual memory is performed only after the caller requests the camp-on. Further, in order to prevent the dead time of the camp-on connection processing, when the calling terminal is busy or does not respond for a certain period of time during the camp-on call, the calling terminal having the next identifier (ID) in the individual memory is called. I did it.

[0006]

When the destination exchange stores the identifier (ID) such as the telephone number of the calling subscriber in the individual memory provided in the destination exchange for each called terminal in response to the camp-on request from the calling terminal, the calling subscriber joins this calling subscriber. The caller terminal can be called from the destination switching device for the first time when the receiving terminal becomes empty according to the operator's identifier (ID). Therefore, the line connection between the source switching device and the destination switching device can be temporarily released during that time. It is possible to prevent invalid use of the line. In addition, since the called subscriber sets the size of the individual memory, that is, the number of camp-on allowable persons, when registering the camp-on beforehand, the calling terminals overflowing from the camp-on are connected to the BT-connected terminal so that You can keep the waiting time to a certain limit.

Further, when the called terminal is busy, the destination exchange identifies the registration order of the calling subscriber's identifier and informs the calling party of the order and the like by means of a talkie. Since the waiting time can be predicted and the identifier (ID) can be canceled when the waiting time cannot be waited, invalid use of the individual memory can be prevented. In addition, since the caller is notified that the receiving terminal is a camp-on registrant by a talkie or a signal tone, the caller can easily camp on. Further, the storage of the calling subscriber's identifier in the individual memory of the destination exchange or transit exchange is:
Since it is performed only after the caller requests the camp-on request, the cancellation of the calling subscriber's identifier after registration can be reduced and the individual memory can be effectively used. Further, the same effect can be obtained when there is a relay exchange between the originating exchange and the destination exchange.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a main part of one embodiment of a public network implementing a camp-on system according to the present invention. The originating exchange which accommodates the calling terminal 1 comprises a speech path switch 3, a station controller 4, and a subscriber information memory 5, while the destination exchange which accommodates the terminating terminal 2 comprises a speech path switch 6, a termination call. In addition to the control device 7 and the memory 8, it is composed of a camp-on-talkie or signal tone transmitter 9, a camp-on request receiver 10, a camp-on ring tone transmitter 11, and a ring tone transmitter 12. The originating exchange and the terminating exchange are connected by a telephone line 13 and a common signal line 14.

FIG. 2 shows the contents of the memory 8 of the destination exchange. The memory 8 of the destination exchange is a subscriber data memory 8-2 provided for all the subscriber terminals of the destination exchange.
And an individual camp-on memory 8-1 corresponding to the called terminal registered in camp-on. In the subscriber data memory 8-2, the called terminal number and the presence or absence of camp-on registration of the terminal,
Record the allowable number of camp-on registrations (N ₁ , N _2, etc.) and call information indicating whether or not a call is currently in progress. In the camp-on memory 8-1, what is requested from the calling terminal for camp-on registration while the called terminal is busy is recorded in the order of reception.

FIG. 3 is an operation explanatory diagram showing the procedure of the destination camp-on connection of the embodiment shown in FIG. The symbols S1 to S13 showing the camp-on connection procedure in the figure correspond to the operation parts S1 to S13 shown by the dotted lines in the device configuration diagram of FIG.
First, the calling party dials the calling terminal 1. When the receiving terminal 2 is empty, the exchange normally connects to establish a line connection and make a call. When the receiving terminal 2 is busy, the receiving control device 7 of the receiving switch uses the camp-on memory 8 to confirm S1 whether or not the receiving terminal 1 has camp-on registration. If no camp-on registration is made, a busy tone transmission connection (BT connection) is performed.

When camp-on registration is present, the destination exchange calls the calling terminal 1 from the camp-on talkie or signal tone transmitter 9 for a talkie or signal sound indicating that the receiving terminal 2 is a camp-on registrant. The sending S2 is performed to the terminal 1, and at the same time, the order in which the calling ID is recorded in the individual memory 8 corresponding to the called terminal is informed by a talkie. Next, the presence / absence of a camp-on request from the calling terminal 1 is monitored, and if there is no camp-on request from the receiving terminal 1 within a fixed time, BT connection is established.
When the calling terminal 1 makes a camp-on request S3, the control device 4 of the originating exchange switches the calling terminal 1 from the subscriber information memory 5.
The sending ID is sent via the common signal line 1 (S4). The destination control device 7 of the destination exchange performs registration S5 in the camp-on memory 8 via the received call origination ID, performs line release S6 between the originating exchange and the destination exchange, and terminates the call from the receiving terminal 2. The state shifts to the monitoring state S7. When the call termination detection S8 is performed, the destination control device 7 performs line connection S9 between the originating exchange and the destination exchange again, and sends a signal from the camp-on ring tone transmitter 11 to the calling terminal 1 to call the camp-on call S.
Do 10. When the calling terminal 1 makes a response S11, a signal from the ring back tone transmitter 12 is sent to the called terminal 2 to call the called terminal 2 (S12). A call is made by the response S13 of the receiving terminal 2.

In the above embodiment, the case where the originating exchange and the destination exchange are connected by a direct line has been described, but the present invention is not limited to the above embodiment. FIG. 3 shows the configuration of another embodiment of the can system according to the present invention. In this embodiment, a relay exchange is interposed between the originating exchange and the destination exchange, and the camp-on memory 17 is provided in the relay exchange to release the line between the originating exchange and the relay exchange during the camp-on period. It was done like this. The receiving terminal 2 performing the camp-on secures the camp-on memory 17 in advance.
When the calling terminal 1 makes a call, if the called terminal 2 is empty, or if there is no camp-on memory 17, the same operation as the conventional switching network is performed.

When the terminating terminal 2 is busy, the control device 17 of the repeater exchange checks the camp-on memory 17 and confirms that the terminating terminal 2 is camp-on-registered with the calling terminal 1 and stores it in the memory corresponding to the terminating terminal 2. The order in which the ID of the calling terminal 1 is recorded is notified by the talkie 9. Next, the presence or absence of a camp-on request from the calling terminal 1 is monitored, and when there is no camp-on request, BT connection is established. When making a camp-on request from the calling terminal 1, the originating exchange transmits the originating ID to the transit exchange via the common signal line 14-1. The transit exchange registers the calling station ID received via the control device 16 of the transit switch in the camp-on memory 17, and releases the communication line 13 between the originating switch and the transit switch. afterwards,
The call end of the receiving terminal 2 is monitored at a constant cycle. When the call end is detected, the call line 13 between the originating exchange and the repeater exchange is connected, and a camp-on call is made at the end of the calling end 1. This embodiment is effective when the degree of use of the communication line between the originating exchange and the repeater exchange is high, and, as in the embodiment of FIG. 1, notifies the order in which the ID of the calling terminal 1 is recorded. , Improve service to terminal users who use Camp On.

[0014]

As described above, according to the present invention, since the line is released during the waiting state for the call termination of the called subscriber due to the camp on, the invalid use of the line can be prevented. In addition, when registering the camp-on of the called subscriber, set the allowable number of calling IDs to be stored, and without waiting for the caller before the camp-on, and also in the individual memory for the called subscriber of the destination exchange. You can prevent invalid use. Further, since the presence or absence of a response to the caller for the camp-on call is monitored at timing, it is possible to prevent the invalid use of the line by the camp-on call.

[Brief description of drawings]

FIG. 1 is a diagram showing the configuration of an embodiment of a public telephone network for implementing a camp-on system according to the present invention.

FIG. 2 is a diagram illustrating a configuration of a memory 8 of FIG.

FIG. 3 is a diagram showing the configuration of another embodiment of the telephone public network for implementing the camp-on system according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Originating terminal, 2 ... Receiving terminal, 3 ... Originating speech path switch, 4 ... Originating control device, 5 ... Originating subscriber information memory, 6 ... Destination speech path switch, 7 ... Destination control apparatus, 8 ... Camp-on memory, 9 ... Camp-on talkie / signal tone transmitter, 10 ... Camp-on request receiver, 11 ... Camp-on ring tone transmitter, 12 ... Ring tone transmitter, 13 ... Call line, 14 ... Common signal line ..

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[Procedure amendment]

[Submission date] August 28, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

1 is a diagram showing a configuration of one embodiment of the present invention by the camp-on method telephone public network you implement.

FIG. 2 is a diagram illustrating a configuration of a memory 8 of FIG.

FIG. 3 is a schematic diagram of a destination camp-on connection of the embodiment shown in FIG .
It is operation | movement explanatory drawing which shows a procedure.

FIG. 4 is a telephone implementing a camp-on system according to the present invention .
It is a figure which shows the structure of the other Example of a public network.

[Explanation of Codes] 1 ... Originating terminal, 2 ... Receiving terminal, 3 ... Originating speech path switch, 4 ... Originating control device, 5 ... Originating subscriber information memory, 6 ... Destination speech path switch, 7 ... Arrival Station control device, 8 ... Camp-on memory, 9 ... Camp-on talkie / signal tone transmitter, 10 ... Camp-on request receiver, 11 ... Camp-on ring tone transmitter, 12 ... Ring tone transmitter, 13 ... Call line, 14 ... Common signal line.

Claims (7)

[Claims] 1. A call-exiting terminal when a call-out terminal is provided with an individual camp-on memory corresponding to a call-receiving terminal and a call-out terminal makes a call to the call-receiving terminal and the call-receiving terminal is busy. Is stored in the individual camp-on memory, and the destination exchange calls the calling terminal with the identifier stored in the individual camp-on memory after the called terminal responds. 2. A relay exchange in a telephone public network having a source exchange containing a calling terminal, a destination exchange containing the destination terminal, and a relay exchange interposed between the source exchange and the destination terminal. In addition, an individual camp-on memory is provided for the called terminal, and when the calling terminal makes a call to the called terminal and the called terminal is busy, the identifier of the calling terminal is stored in the individual camp-on memory. A camp-on system in which the relay exchange calls the calling terminal with the identifier stored in the individual camp-on memory after the called terminal responds. 3. The camp-on system according to claim 1 or 2, wherein camp-on registration is performed in advance from the receiving terminal, and the size of the individual camp-on memory is set. 4. The camp-on system according to claim 1 or 2, wherein when the call-out terminal makes a call to the call-in terminal and the call-in terminal is busy, the destination switch or relay switch is individually operated. A camp-on system characterized by identifying the registration status of the camp-on memory and notifying the calling terminal of the registration status by a talkie. 5. The camp-on system according to claim 1 or 2, wherein when there is a call from the calling terminal to the called terminal and the called terminal is busy, A camp-on system characterized by notifying that the receiving terminal is a camp-on registrant with a talkie or a signal tone. 6. The camp-on system according to claim 1 or 2, wherein the storage of the identifier of the calling terminal in the individual camp-on memory is performed only when a camp-on request is issued from the calling terminal. The characteristic camp-on method. 7. The camp-on system according to claim 1, wherein when the destination exchange calls the calling terminal with the identifier stored in the individual camp-on memory, the calling terminal is busy or for a certain period of time. In the case of no response, a camp-on system characterized in that a calling terminal having an identifier next to the above-mentioned identifier stored in the individual camp-on memory is called.