JPH07235990A - Emergency telephone network system - Google Patents

Abstract

PURPOSE:To form an emergency telephone network system which is capable of reducing equipment cost, maintaining the original purpose of the emergency telephone. CONSTITUTION:A network 11 for general line is provided with a telephone set classification decision means 22 deciding whether the telephone set to be a call origin is for emergency or not based on the information showing whether the telephone set to be the call origin is for emergency or not. A telephone set 1 for emergency and an emergency contact destination telephone set 8 are connected via the network 11 for general line. When it is decided that the telephone set to be the call origin is not for emergency by the telephone set type classification decison means 22, the call connection of the telephone set 1 for emergency and the emergency contact destination telephone set 8 is performed.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to emergency telephone network systems. This emergency telephone network system is used, for example, to notify an emergency situation from a fire station, a police station, or an expressway management room from an emergency telephone provided at a predetermined location on the expressway.

[0002]

2. Description of the Related Art FIG. 6 shows a block diagram of a conventional emergency telephone network system, which will be described.

In this figure, reference numeral 1 is an emergency telephone, which is provided at a predetermined location on the expressway,
This is for notifying the police station or an expressway management room (not shown) of an emergency.

2, 3 and 7 are LCs (Lines) of exchanges for subscribers.
Concentrator), 4 is an expressway network, 6 is a fire station / police station trunk (FPT: Fire / Police Tru)
nk), 8 are emergency telephones installed in the fire department, and 9 is an emergency telephone installed in the police station.

The highway-dedicated network 4 is originally installed separately from a general telephone network,
Emergency telephones 1 at various places on the highway are connected via LC2 and LC3, and telephones 8 and 9 of the fire station and police station are connected via FPT6 and LC7.

[0006] In such a network system, in an emergency, the calling subscriber receives a message from the emergency telephone 1 such as "1".
If you dial "10", you will get a direct call to the telephone 8 of the police station through the expressway network 4, so the line connection will be made without any interference like a general line, and an emergency situation will occur. Can be notified promptly.

[0007]

By the way, in the above-mentioned emergency telephone network system, there is a problem that equipment cost is increased because a dedicated network must be installed.

Therefore, if the general line network is used, it becomes possible to make a call with the general subscriber telephone, and the original purpose of use of the emergency telephone is impaired.
The present invention has been made in view of such points,
It is an object of the present invention to provide an emergency telephone network system capable of reducing equipment costs while maintaining the original purpose of an emergency telephone.

[0009]

FIG. 1 shows the principle of the present invention. In the figure, 1 is an emergency telephone, 8 is an emergency contact telephone, and 11 is a general line network.

A feature of the present invention is to provide a telephone type determining means 22 for determining whether the source telephone is an emergency telephone based on information indicating whether the source telephone is an emergency telephone. , The emergency telephone 1 and the emergency contact telephone 8 are connected via the general line network 11, and the emergency telephone 1 is determined when the telephone type determination means 22 determines that the telephone of the caller is not the emergency telephone. Is configured to make a call connection with the emergency contact telephone 8.

[0011]

According to the present invention described above, since it is possible to make a call for connecting the emergency telephones 1 and 8 to each other via the general line network 11, it is necessary to install a dedicated network as in the conventional case. Disappear. Further, since the telephone type determining function 22 determines whether or not the calling telephone is an emergency telephone, the telephone for a general line is not connected to the emergency contact telephone 8. In other words, the original purpose of the emergency call is maintained.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram of an emergency telephone network system according to an embodiment of the present invention. In this figure, parts corresponding to those of the conventional example shown in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted.

The emergency telephone network system of the embodiment shown in FIG. 2 is different from the conventional example shown in FIG. 5 in that a virtual highway-dedicated network can be constructed in a general line network.

In FIG. 2, 11 and 14 are general line networks. 12 is OGT (Out Going Trunk),
ICT (In Coming Trunk), which is provided between the general line networks 11 and 14.

The general line network 11 includes an LC
The emergency telephones 1 installed at various places on the highway are connected via 2 and 3, and the general line network 14 is installed via the LC 7 at the emergency telephone 8 installed at the fire station and at the police station. The emergency telephone 9 is connected, and the emergency telephones 17 and 18 installed in the expressway control room are connected via the LC 16.

Reference numeral 21 is a processor in the exchange that controls the general line network. This processor 21
As shown in FIG. 3, a telephone type determination function 22, a list access function 23, a called telephone number collation function 24,
It has a busy tone sending function 25. Each of these functions is realized by a program.

In the memory section 26 of the processor 21,
The telephone type information 27 and the search list number information 28 added to the calling party subscriber data, and the callable subscriber telephone number list 29 are stored.

The telephone type information 27 indicates whether or not the telephone 1 connected to the general line network is an emergency type, and is set for each individual telephone. The search list number information 28 is a list number for searching and accessing the incoming callable subscriber telephone number list 29.

The incoming callable subscriber telephone number list 29 is registered with telephone numbers that can receive incoming calls. The telephone type determination function 22 refers to the telephone type information 27 to determine whether or not the originating telephone is an emergency one. For example, the unique number of the calling telephone is "A1", and
If it is determined that the telephone type information 27 is for emergency as indicated by reference numeral 31, the telephone type determination function 22 determines that the telephone is for emergency.

The list access function 23 provides the search list number information 2 when the calling telephone is an emergency one.
8 to access the corresponding callable subscriber telephone number list 29. For example, reference numeral 32 in FIG.
If the search list number is registered as "8" as indicated by, the access is made to the incoming callable subscriber telephone number list 29 of the list number "8" as indicated by reference numeral 33.

The destination telephone number collating function 24 collates whether or not the telephone number transmitted from the telephone set of the transmission source is registered in the callable subscriber telephone number list 29. For example, as indicated by reference numeral 33 in FIG. 4, the telephone number transmitted from the telephone set of the transmission source is "110", and it is verified whether or not the number is registered. In the case of this example, since it is registered, it is determined to be registered.

The busy tone sending function 25 sends a busy tone to the sender's telephone when the telephone number sent from the sender's telephone is not registered in the callable subscriber telephone number list 29. However, instead of the busy tone sending function 25, an announcement function may be provided to send an announcement notifying that the caller is not registered.

The operation of the thus configured emergency telephone network system will be described with reference to the flowchart of FIG. First, if "110" is performed from the telephone 1 in an emergency in step S1, the subscriber data is accessed under the control of the processor 21 in step S2, and the telephone type determination function 22 causes the telephone type information to be accessed in step S3. Referring to 27, it is determined whether or not the calling telephone set 1 is for emergency use.

If the result of this determination is NO, that is, if the telephone set 1 is for general use, the existing exchange processing is carried out as shown in step S4. On the other hand, if YES, that is, if it is for an emergency, in step S5, the list access function 23 refers to the search list number information 28 to access the incoming callable subscriber telephone number list 29.

Then, in step S6, the called party telephone number collation function 24 allows the called party subscriber telephone number list 29.
Refer to the phone number "1" sent from the source phone.
It is determined whether or not "10" is registered in the incoming callable subscriber telephone number list 29.

If the result of this determination is NO, that is, if it has not been registered, the busy tone sending function 25 sends a busy tone to the originating telephone 1 in step S8, and the sender confirms this in step S9.

On the other hand, in the case of YES, that is, if registered, in step S7, call connection between the caller telephone 1 and the police station telephone 9 shown in FIG. 2 is performed. According to the emergency telephone network system of the above-described embodiment, a highway-dedicated network can be virtually constructed so as not to interfere with general subscribers in the general line network. Since it is not necessary to provide the above, it is possible to significantly reduce the equipment cost.

In addition, a list of callable subscriber telephone numbers 29
If the telephone numbers of the fire department, the police station, the management room, etc., which are closest to the emergency telephone 1 on the expressway are registered, the procedure after the emergency contact can be promptly performed.

[0029]

As described above, according to the present invention,
There is an effect that the facility cost can be reduced while maintaining the original purpose of the emergency call.

Further, since it is possible to freely specify the registration of the emergency contact information, it becomes possible to establish a call connection between the emergency telephone and the nearest emergency contact information, and the procedure after the emergency communication can be carried out quickly. There is an effect that can be done.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a block diagram of an emergency telephone network system according to an embodiment of the present invention.

FIG. 3 is a diagram for explaining the function of the processor shown in FIG.

FIG. 4 is another diagram for explaining the function of the processor shown in FIG.

5 is a flowchart for explaining the operation of the emergency telephone network system shown in FIG.

FIG. 6 is a block diagram of a conventional emergency telephone network system.

[Explanation of symbols]

 1 Emergency Telephone 8 Emergency Contact Telephone 11 General Line Network 22 Telephone Type Determining Means

Claims (6)

[Claims] 1. An emergency telephone (1) and an emergency contact telephone
In the emergency telephone network system for making a call connection with (8), the general-purpose network (11) uses the information indicating whether the telephone set of the caller is an emergency call A telephone type determining means (22) for determining whether or not it is for emergency is provided, and the emergency telephone (1) and the emergency contact telephone (8) are connected via the general line network (11). , The emergency telephone when the telephone type determining means (22) determines that the source telephone is not an emergency telephone
An emergency telephone network system characterized in that a call connection is made between (1) and the emergency contact telephone (8). 2. When the telephone type determining means (22) determines that the originating telephone is not an emergency telephone, a general line exchange process is performed on the originating telephone. The emergency telephone network system according to claim 1, wherein 3. A telephone number capable of receiving a call is registered in the general line network (11) when the telephone type of the calling source is determined to be an emergency one by the telephone type determination means (22). A list access means (23) for accessing the existing list and a destination telephone number verification means (24) for verifying whether or not the telephone number transmitted from the transmission source telephone are registered in the list are provided. The emergency telephone (1) and the emergency contact telephone when the registration is confirmed by the called telephone number collating means (24)
3. The emergency telephone network system according to claim 1, wherein the call connection with (8) is made. 4. The desired callable telephone number can be registered in the list, and the emergency contact telephone (8) for call connection to the emergency telephone (1) can be freely set. The emergency telephone network system according to any one of claims 1 to 3, which is characterized in that. 5. When the telephone number of the called party is confirmed by the called party telephone number collating means (24), the telephone number of the called party is confirmed in the list. Means for sending reject tone (25)
The emergency telephone network system according to claim 3, wherein the emergency telephone network system is provided. 6. When the destination telephone number collating means (24) confirms that the telephone number transmitted from the transmission source telephone is not registered in the list, the transmission source telephone number is set to the transmission source telephone. The emergency telephone network system according to claim 3 or 4, further comprising means for notifying that the emergency call connection cannot be made by an announcement.