JPH09312692A - Call control system - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a call origination / termination control method capable of prioritizing lifesaving in the event of a disaster. SOLUTION: Means for storing a called number to be prioritized during a disaster (disaster incoming call display 6), means for determining a disaster occurrence (emergency call connection NG counter 7, emergency call connection NG threshold 8), and disaster regulation during transmission Means to notify the destination exchange that the call originated from the district (disaster regulated area call display 12)
And means for notifying the regulated calling subscriber of the reason for regulation, means for judging whether the called subscriber is a subscriber within the disaster-controlled area when receiving a call (disaster-controlled announcement device 10), and the incoming exchange to the outgoing exchange. Means for notifying the side that disaster regulation has been made (disaster regulation incoming call rejection display 13).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call origination / termination regulation connection control method, and more particularly to a call origination / termination regulation control method in which control is performed irrespective of an overloaded state of an exchange and a priority number is registered in advance in case of disaster.

[0002]

2. Description of the Related Art A conventional call control system is disclosed in Japanese Patent Laid-Open No.
As described in Japanese Patent Laid-Open No. 263872, the time when the called party desires to regulate incoming call is registered in advance in the incoming call regulation data registration memory of the automatic telephone exchange, and a tone is given to an incoming call received during the regulated time. Alternatively, there is a method in which the caller is notified by announcement that the incoming call is being restricted, but the emergency incoming call made by a predetermined calling method is received even during the incoming call restriction time.

Further, Japanese Laid-Open Patent Publication No. 1-175349 discloses a method of restricting incoming calls other than calls made by a prespecified caller or a call procedure specified in advance.

Further, in Japanese Patent Laid-Open No. 3-195660, when the exchange is overloaded and the necessary resources are insufficient or expected to be insufficient, the priority of the caller is judged at the time of calling, and the caller is determined. There is disclosed a priority subscriber connection control method in which connection control is performed with priority given to a caller having a lower priority when the category is prioritized.

The former two prior arts are services aimed at rejecting an incoming call during normal times due to the convenience of the called party, and the latter prior art attempts to restrict incoming calls due to the convenience of an exchange during congestion. is there.

[0006]

The conventional incoming call regulation system lacks the viewpoint of what kind of call should be regulated in the event of a disaster. The reason for this is that the conventional method is intended only to refuse the incoming call due to the convenience of the receiving side at normal times, or only to secure the processing capability of the exchange at the time of congestion.

Lifesaving is the highest priority in the event of a disaster, and emergency contact related to lifesaving (contact with hospital / administrative body, notification) needs to guarantee connection.

[0008] In the conventional method of rejecting an incoming call for the convenience of the called party, the incoming call cannot be received by the subscriber when the incoming call is restricted, or unless the call is made by a prespecified subscriber or a prespecified procedure. Since the subscriber cannot receive an incoming call, it is not possible to connect only the emergency call that is received from an unspecified caller in the normal procedure and to control the other calls.

Further, in the conventional method only for securing the processing capacity of the exchange at the time of congestion, since paying attention to the priority of the caller, for example, the public telephone is more public than the telephone of a general household. According to the point, it is prioritized, but in the event of a disaster, most public telephones in the town will call out to acquaintances or confirm that they are safe. Emergency contact is eventually hindered.

Further, the conventional congestion control system has a problem that it takes time to recover from congestion in the event of a disaster. The reason is that the conventional method does not consider whether or not the congestion is caused by a disaster.

Therefore, at the time of congestion, only the announcement "Please call again after a while" is uniformly sent to the regulated callers. Then, the caller does not know the reason for the restriction, and tries to call again many times. As a result, there is a drawback that the congestion state lasts for a long time.

It is an object of the present invention to provide a call origination / termination control system capable of giving the highest priority to saving lives when a disaster occurs.

Another object of the present invention is to provide a transmission / reception regulation control system for promptly dismissing general communication and guaranteeing emergency contact immediately after a disaster.

[0014]

The call origination / termination control system of the present invention is characterized mainly in that, when a disaster occurs, only emergency contact is connected and all other calls are regulated.

More specifically, means for storing a called number that should be prioritized in the event of a disaster, means for determining the occurrence of a disaster, and means for notifying the destination exchange that a call is from a disaster-controlled area when making a call. , Means to notify the regulated calling subscriber of the reason for regulation, means to judge whether the called subscriber is a subscriber within the disaster-controlled area at the time of incoming call, and the fact that the incoming exchange has made a disaster regulation to the outgoing exchange side. And means for notifying.

[0016] When a disaster occurs, emergency call connection NG in the area concerned
When the (failure) number exceeds a preset threshold value, the judgment is automatically made. For this reason, it is not necessary for a person to be involved at the start of the regulation, and finer regulation control can be performed as compared with the call control based on the area code, and a small disaster such as a forest fire can be dealt with.

During the disaster regulation, general calls are regulated even if the exchange is not overloaded. Therefore, the amount of communication in the area becomes less than usual, and in the case of an emergency call, the connection can be guaranteed as long as the destination line is free.

During the disaster regulation, no connection is made no matter how many times the call is repeated except the emergency contact call. In addition, the regulated caller is notified that the disaster regulation is under way. Therefore, unnecessary re-calls are prevented, which is effective in shortening the congestion time.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an embodiment of the present invention. The subscriber A, the subscriber B, the subscriber C, the fire station P, and the fire station Q are housed in the exchange 1. Subscribers A, B,
C's fire department is P. The subscriber D is accommodated in the exchange 14. The exchange 1 is provided with a central control device 2, a main storage device 3, and a disaster regulation announcement device 10. The main memory 3 has a subscriber memory 4
An emergency call connection NG counter 7, which is added when an emergency call connection NG (failure) is made, an emergency call connection NG threshold 8 and a disaster regulation display 9 are provided. The emergency call connection NG counter 7, the emergency call connection NG threshold 8 and the disaster regulation display 9 are
It is provided for each fire station. The subscriber memory 4 is provided with an area code 5 for identifying a fire department under its jurisdiction, and a disaster incoming call display 6 indicating that the designated organization should be prioritized when a disaster occurs.

Next, the operation of the embodiment of the present invention will be described in detail with reference to the flow chart.

Setting of NG threshold, area code and disaster incoming call display As shown in the flowchart of FIG. 2, fire stations P and Q
At the time of installation, the emergency call connection NG threshold value 8 is set in the main storage device 3 (step 20).

At the time of contracting the subscribers A, B, and C, the area code 5 for specifying the fire department P under the jurisdiction is set in the main storage device 3 (step 21). Specific institutions that subscribers should accept incoming calls in the event of a disaster (eg, medical institutions, government agencies, news agencies,
If the subscriber B is a specific institution, the disaster incoming display 6 is registered in the main storage device 3 (step 23). That is, in the main storage device 3, the fire station under the jurisdiction of the subscribers A, B, and C is P, and the subscriber B is a specific organization.

Judgment of Occurrence of Disaster As shown in the flowchart of FIG. 3, when the subscriber A makes a call to the fire station P (step 24), the exchange 1 judges whether or not connection is possible ( If it is impossible in step 25), the emergency call connection NG counter 7 is incremented (step 26). Furthermore, emergency call connection NG counter 7
Determines whether or not the preset emergency call connection NG threshold 8 is exceeded (step 27). When the emergency call connection NG threshold value 8 is exceeded, the disaster regulation display 9 is set (step 2).
8). As a result, the area under the jurisdiction of the fire department P is automatically under disaster regulation. Even if they are housed in the same exchange 1,
The area under the jurisdiction of fire station Q is not under disaster regulation.

Call from subscriber A to subscriber B or C As shown in the flow chart of FIG. 4, when subscriber A makes a call to subscriber B (step 30), the exchange 1 From the disaster regulation display 9 of the fire department P indicated by the area code 5 of the subscriber A, the subscriber A is in the disaster regulation (step 31) and the disaster arrival display 6 of the called subscriber B is set. If it is identified (step 32), connection control is performed (step 33).

In step 30, if the called party is C and it is detected that the disaster incoming display 6 is not registered (step 32), the call is immediately barred and the exchange 1 proceeds to step 34. Then, the subscriber A is connected to the disaster regulation announcement device 10 for regulation processing (step 35). The announcement is notified, for example, "The phone is regulated due to the occurrence of a disaster. For a while, since priority is given to lifesaving, we are not able to call anyone other than a specific organization".

Call from subscriber A to subscriber D As shown in the flow chart of FIG. 5, the subscriber A accommodated in the exchange 1 makes a call to the subscriber D accommodated in the exchange 14. (Step 36), the exchange 1 determines that the subscriber A is in the disaster regulation from the disaster regulation display 9 of the fire station P indicated by the area code 5 of the subscriber A, and
When it is determined that the called subscriber D is not accommodated in the exchange 1 (step 37), the disaster regulation area call display 12 is displayed to notify the exchange 14 that the subscriber A is under the disaster regulation. It is set in the address signal of the inter-frame signal 11 (step 38). The exchange 1 analyzes whether or not the disaster regulation incoming call rejection display 13 is set in the disconnection signal sent from the exchange 14 (step 39). When the disaster regulation call rejection display 13 is set, the exchange 1 connects the subscriber A to the disaster regulation announcement device 10 (step 4).
0), restriction processing (step 41). If the disaster restriction incoming call rejection display is not set in step 39, connection processing is performed (step 42).

Calling from subscriber D As shown in the flowchart of FIG. 6, when the subscriber D makes an incoming call to the subscriber B (step 43), the exchange 1 calls the called subscriber B. Fire station P indicated by area code 5
Subscriber A is in the process of disaster regulation,
When it is identified that the disaster incoming display 6 of the called subscriber B is registered (step 45), connection control is performed (step 46).

When the called party is C in step 43 and it is detected that the disaster incoming call display 6 is not registered (step 45), the call is immediately restricted, and the exchange 1 receives the disaster restricted incoming call. The refusal display 13 is set to the disconnection signal (step 47), and the restriction process is performed (step 48).

The case where one embodiment of the present invention is applied to a general exchange has been described above, but the ATM (Asynch)
When it is applied to the Robust Transfer Mode, even if the video communication requires a large amount of resources, the communication can be secured if it is an emergency call.

[0031]

According to the present invention, telephone calls other than emergency calls are strongly suppressed, and emergency calls are always made as long as the called line is free. Further, since the photograph and the moving image can be surely sent, the information necessary for medical treatment can be sent. Such information also makes the media coverage more accurate and detailed. Therefore, according to the method of the present invention, it is possible to secure communication in which lifesaving is the highest priority when a disaster occurs. Also, people in the disaster area will be able to perform more meaningful actions (helping and cleaning up) rather than lining up public telephone lines to contact acquaintances.

Further, according to the outgoing / incoming call restriction control system of the present invention, the restriction can be finely applied. The reason for this is that the present invention regulates each emergency service area, so the regulation range is smaller than the conventional disaster regulation corresponding to the area code. In addition, since only emergency calls that were not subject to regulation in the past are particularly congested (wildfire etc.),
It is expected that callers will become aware of the disaster and will obtain the information through appropriate means other than telephone, such as radio or disaster radio.

Further, according to the outgoing / incoming call restriction control system of the present invention, the restriction can be surely and promptly applied. The reason is that the disaster regulation information is automatically obtained based on the congestion of the emergency call by the logic inside the exchange, not by the maintenance personnel. When an unprecedented disaster occurs, the maintenance person is also upset, so it takes time to start up if the maintenance personnel are involved.
Although the conventional outgoing and incoming call restrictions are also applied automatically, it takes a long time to start because the call volume is activated after the switching function reaches the limit. Emergency calls in the event of a disaster are concentrated immediately, so they are activated faster than conventional regulations.

[Brief description of drawings]

FIG. 1 is a block diagram of a method for implementing the present invention.

FIG. 2 is a flowchart for explaining an operation of setting an NG threshold, an area code, and a disaster incoming call display.

FIG. 3 is a flowchart for explaining the determination of occurrence of a disaster.

FIG. 4 is a flowchart for explaining an operation of making a call from subscriber A to subscriber B or subscriber C.

FIG. 5 is a flowchart for explaining an operation of making a call from subscriber A to subscriber D.

FIG. 6 is a flowchart for explaining an operation of calling from a subscriber D.

[Explanation of symbols]

 1,14 Exchange 2 Central control unit 3 Main memory 4 Subscriber memory 5 Area code 6 Disaster incoming call display 7 Emergency call connection NG counter 8 Emergency call connection NG threshold 9 Disaster regulation display 10 Disaster regulation announcement device 11 Inter-station signal 12 Area under disaster control 13 Display of incoming call under disaster control A, B, C Subscriber P, Q Fire department

Claims (6)

[Claims] 1. When a disaster occurs, even if the exchange is not overloaded, a call to a specific called subscriber is treated as a priority connection in a call origination / termination control system that preferentially receives a connection service. Register the called number of the specified called subscriber in the exchange,
When the exchange is in a disaster occurrence state, regardless of the load state of the exchange, when the dialed callee number is received, it is collated with the registered callee number of the specific called subscriber, and the collation result is A call origination / restriction control method based on the called number, which is characterized in that the connection operation is performed only when they match. 2. A means for storing a called number that should be prioritized in the event of a disaster in a call origination / termination control system that preferentially provides connection service even if the exchange is not overloaded in the event of a disaster, and the determination of the occurrence of the disaster. Means, a method of notifying the destination exchange that the call is from a disaster regulated area when making a call, a means of notifying the regulated calling subscriber of the reason for the regulation, and a call receiving party receiving a disaster regulation when receiving a call A transmission / reception regulation control method comprising means for determining whether the subscriber is a district subscriber and means for notifying the originating exchange side that disaster regulation has been made from the incoming exchange. 3. In a call origination / termination control system that preferentially receives a connection service even when the exchange is not overloaded in the event of a disaster, a subscriber memory and an emergency call are stored in the main memory of the exchange. Emergency call connection NG counter, which is added when the connection fails (failure), an emergency call connection NG threshold, and a disaster regulation display, the exchange is provided with a disaster regulation announcement device, and the subscriber memory Is the first to concentrate calls in the event of a disaster
The area code for specifying the specific organization and the disaster incoming call display indicating that it is the second specific organization that should be prioritized when a disaster occurs are provided for each subscriber. 4. When a call is made from the subscriber to the first specific organization, the exchange judges whether or not the connection is possible, and if not possible, the emergency call connection NG counter is incremented, Furthermore, it is determined whether the emergency call connection NG counter exceeds a preset emergency call connection NG threshold value, and when the emergency call connection NG threshold value is exceeded, the disaster regulation display is set. The call originating / terminating restriction control system according to claim 3. 5. When the first subscriber makes a call to the second specified organization, the exchange, from the disaster restriction display of the first specified organization indicated by the first subscriber area code, If it is identified that the first subscriber is under disaster regulation and the second incoming call of the specific organization is set, the connection control is performed, and the first subscriber sends the second subscriber to the second subscriber. When a call is made by calling, the call is immediately regulated when it is detected that the disaster arrival display is not registered, and the exchange connects the first subscriber to the disaster regulation announcement device to perform regulation processing. 5. The outgoing / incoming call restriction control system according to claim 4, wherein 6. The first specific organization is a fire department, and the second specific organization is a medical institution, an administrative agency, a news organization,
Alternatively, it is an evacuation control office, and the outgoing / incoming call control system according to claim 5.