JPH09149436A - Method for assigning subscriber's number for data communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for assigning a subscriber's number capable of reducing the probability of erroneous distribution of communication data by assigning the subscriber's number of the longest passing time from a releasing time of subscriber's numbers and, when the passing time is not longer than a prescribed time, giving information of the fact to a prescribed address. SOLUTION: In responce to a facsimile number assigning request from an extension facsimile equipment, whether there is the assignment of a facsimile number is monitored (step 101). Then whether a passing time from the releasing time of an oldest facsimile number is within the prescribed time or not is investigated (step 103). When it is within the prescribed time, warning facsimile describing the fact is transmitted to the prescribed address (step 104). Thereby a manager executes operation for increasing the number of contracted lines between with a public line network to ease the overcrouding of a using state. Consequently a free period is prolonged so as to keep the probability of the erroneous distribution of the facsimile document to be not more than a fixed value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a subscriber number assigning method of a data communication system for providing data communication services such as facsimile transmission and reception to users of facilities such as hotels temporarily used by a plurality of persons.

[0002]

2. Description of the Related Art Conventionally, when an extension communication terminal such as a facsimile device connected to an extension of a private branch exchange installed in a hotel or the like and a communication terminal device connected to an outside line communicate with each other,
When making a call from an extension communication terminal device to an outside communication terminal device, the subscriber number assigned to the outside communication terminal device (if the line network to which the communication terminal device is connected is a telephone network), It can be done directly by calling through the private branch exchange.

However, conversely, in order to allow the external communication terminal device to directly make a call to the internal communication terminal device, the external communication terminal device specifies the internal communication terminal device. For this reason, as shown in JP-A-6-37926, a dial-in number must be set (contracted) for each communication terminal of each extension, and the subscriber number used for the outside line must be assigned. .

If a subscriber number (subscriber line) is assigned to each extension communication terminal device in each guest room, the hotel side
It is necessary to pay the contract fee for each subscriber number (subscriber line) to the operator of the line network for the number of guest rooms, which is very expensive for the hotel side.

On the other hand, if an external line communication terminal device cannot directly make a call to the internal line communication terminal device, when a hotel guest is conventionally called from the outside, the hotel is called each time the outside call is made. Just like the front desk of the front desk relays to the extension telephone of each guest room, the front desk once receives communication data such as facsimile information received from an external communication terminal device,
There is no choice but to hand the received facsimile document to the guest in the guest room, and it is impossible to provide a sufficient data communication service to the guest.

As a data communication system developed based on the "communication network" described in Japanese Patent Publication No. 3-501673, a so-called hotel facsimile system has already been implemented as a solution to such conflicting problems. ing.

An example of such a hotel facsimile system will be described with reference to FIGS. 8 and 9.

In FIG. 8, a private branch exchange 2 installed in a hotel 1 which is one of facilities used by a plurality of users is connected to a public line network 3. Each of the guest rooms R1 to Rm in the hotel 1 has an extension facsimile as an extension communication terminal including a facsimile device 4 and an adapter device 5 which accommodates the facsimile device 4 and is extension-connected to the private branch exchange device 2. Devices F1 to Fm are arranged. Each adapter device 5 has a pocket bell receiver 5a built therein. Further, the private branch exchange device 2 is connected to a facsimile management device 6 for monitoring the usage status of the extension communication terminal in each guest room and managing the billing data for each guest room. By the way, in general, the pager receiver 5a is designed to emit an LED or ring a buzzer when called, and in this system, the light emission signal of the LED of the pager receiver 5a is transmitted by a phototransistor or the like. The adapter device 5 is activated by receiving the light and converting it into an electric signal.

The center device 7 is connected to the public line network 3 by a plurality of physical lines and has a large number of dial-in contracts exceeding the number of physical lines. When the facsimile numbers are assigned to the extension facsimile machines, the corresponding mailboxes M1 to Mn, which are the communication data storage units, are created, while the pager numbers and adapter code correspondence table 7a described later are stored.

The pager originating station 8 which is a calling means that does not pass through a public line network includes a pocket bell receiver 5a incorporated in each adapter device 5 as a subscriber and provides a pocket bell call service to general subscribers. On the other hand, the pocket bell receiver 5a corresponding to a specific pager number called from the center device 7 is called.

An adapter code, a guest room number, a hotel number, etc. for the center device 7 to identify them are preset in the adapter device 5 of each guest room, and the pocket device built in the adapter device 5 of each guest room is preset. A pager number for the center device 7 to selectively call them via the pager transmitting station 8 is assigned to the receiver 5a in advance.

On the other hand, as shown in FIG. 9, the center device 7 stores in advance a correspondence table 7a of the adapter code corresponding to the extension facsimile device of each guest room and the pager number of the pager receiver incorporated in the device. doing.

The guest who is a temporary user of the hotel 1 is assigned a specific extension facsimile apparatus by being assigned a specific guest room by the hotel 1. The guest to which the particular extension facsimile device is assigned calls the center device 7 through the adapter device 5 by operating the facsimile device 4 before starting the use of the extension facsimile device, and requests the facsimile number assignment. To do. After calling, the adapter device 5 sends the identification information including its own adapter code to the PB.
The center device 7 is notified by transmitting the signal (DTMF signal) on a predetermined protocol.

The center device 7 assigns an unassigned facsimile number to the transmitted adapter code.
As described above, the mailboxes M1 to Mn each correspond to a specific facsimile number, and thus the transmitted adapter code is associated with the specific facsimile number. Further, since the adapter code and the pager number correspond to the mailbox and the corresponding facsimile number, it also corresponds to the corresponding pager number.

The above-mentioned operation for requesting the facsimile number assignment by the guest before starting the use of the extension facsimile apparatus will be hereinafter referred to as a check-in operation. After the check-in operation, contrary to the check-in operation, the check-out operation, which is an operation of canceling the association between the adapter code and the facsimile number, can be performed by the hotel guest or the hotel.

The check-in operation is performed individually for each guest. After the check-in operation, the center device 7 uses the instruction manual in which the extension facsimile device is associated with the adapter code that identifies the extension facsimile device, that is, the facsimile number assigned to the extension facsimile device is described. To send. The guest informs the intended communication partner of the facsimile number described in the instruction manual received by the facsimile machine 4 of the extension facsimile machine by other communication means such as the facsimile machine 4 or a telephone. .

Hotel 1 by the above check-in operation
An example of associating the extension facsimile machine assigned to the guest in each guest room with the mailbox of the center apparatus 7 and the corresponding facsimile number will be described with reference to FIG.

In the same figure, a table Tg shows the allocation of guests to each guest room yesterday and today. As described above, the correspondence table 7a shows the correspondence between the adapter code and the pager number. The table Tm shows the correspondence between the facsimile numbers held by the center device 7 and the mailboxes created corresponding to them.

Each guest room of the table Tg and the corresponding table 7
The adapter code and the pager number of a correspond to each other as described above. In the table Tg, yesterday, the guest D stayed in the guest room 1 and the guest E stayed in the guest room 3 and used the facsimile machine 4, and there was no guest in the other guest rooms, or the fax machine 4 was used. It is assumed that the guest was an unnecessary guest. On the other hand, today, guest room 2
The guest A, the guest B in the guest room 3, and the guest C in the guest room m stay in the guest room m to use the facsimile machine 4, and there is no guest in the other guest room, or it is necessary to use the fax machine 4. Suppose that there was no guest. These guests are indirectly associated with the correspondence table 7a by being assigned to each guest room.

Each guest individually carries out the check-in operation, and the center device 7 uses the adapter code
Assign a facsimile number that has not been assigned to another extension facsimile device and create a mailbox corresponding to it.

As for the assignment of this adapter code to the mailbox, "Yesterday", the code 1 is associated with the mailbox M2 as indicated by the link Ld, and the code 3 is assigned as indicated by the link Le. It is associated with the mailbox M1.

On the other hand, in "today", the link Ld and the link Le associated with yesterday are released by the check-out operation, while the code 2 is associated with the mailbox M1 as indicated by the link La. , The code 3 is associated with the mailbox M2 as indicated by the link Lb, and the code m is associated with the mailbox M3 as indicated by the link Lc.

As described above, in "Today", for example, among the guests A, B, and C to which the mailbox (facsimile number) is assigned via the adapter code, for example, the facsimile information is provided to the guest A. The communication terminal device of the outside line (facsimile device 9 shown in FIG. 8) that is trying to transmit the call to the facsimile number contacted by the guest A, that is, “FAX number 1”, and the facsimile as communication data. Send information.

The center device 7 receives the facsimile information transmitted from the facsimile device 9 and temporarily stores it in the mailbox M1 corresponding to "FAX number 1". Then, by calling the "page number 2" corresponding to the "adapter code 2" to which the "mail box M1" is assigned, the "page number 2" is notified to the pager originating station 8, and the pager originating station is notified. 8 generates a calling signal including the notified pager number and wirelessly sends it.

The extension facsimile machine corresponding to the transmitted "belle number 2", that is, the pocket bell receiver 5a built in the adapter device 5 constituting the extension facsimile machine F2 responds and the LED emits light. Is received by the phototransistor and converted into an electric signal to activate the adapter device 5. Activated adapter device 5
Sends a call to the center device 7 via the private branch exchange device 2 and notifies the identification information including its own adapter code on a PB (push button) signal, and also notifies the facsimile device 4 connected to the own device. Call and connect the line to the center device 7. The center device 7 transmits the facsimile information stored in the mailbox corresponding to the notified adapter code, that is, the mailbox M1 to the extension facsimile device T2 that has called, and the facsimile device 4 of the extension facsimile device T2 , Receives and records and outputs the facsimile information. This allows
The facsimile information transmitted by the facsimile device 9 reaches the guest A.

For the transmission from the extension facsimile machine of the hotel to the external facsimile machine, the facsimile machine 4 in the hotel directly dials the facsimile number of the transmission destination so that the adapter machine 5 automatically sets the beginning of the facsimile number. Then, "0" is added to the outgoing line and the external line is transmitted, and the same process as the normal facsimile transmission can be performed.

The toll-free number of the center device 7 is set in the adapter device 5, and the extension facsimile device makes a call to the center device 7 by using the toll-free number. Therefore, the line usage fee for receiving the facsimile information from the outside is not burdened by the hotel and its guests, but is paid by the administrator of the center apparatus 7, and the administrator of the center apparatus 7 uses the facsimile. Service charges for sending and receiving information will be collected from hotels and guests.

As described above, according to the above-described data communication system, the hotel does not need to provide dial-in lines with the public line network 3 as many as the number of guest rooms, and the number of external lines is much smaller than that. Facsimile information can be directly transmitted from the facsimile device to the extension facsimile device in each passenger room. For this reason,
The hotel side can save the line contract fee to the minimum necessary and save the trouble of handing over the facsimile received document addressed to the hotel guest from the outside of the hotel to the hotel guest. Therefore, it is possible to provide the guest with a highly convenient data communication service.

[0029]

However, in the above-mentioned conventional data communication system, in the center device,
The facsimile number assigned to the extension facsimile machine by the check-in operation from the extension facsimile machine will be checked in from another extension facsimile machine after the assignment is released by the check-out operation from the extension facsimile machine. It is assigned to the other extension facsimile machine according to the operation.

The center device 7 holds a number of dial-in lines in consideration of the amount of use of the hotel facsimile system with some allowance for the hotel facsimile service by contracting with the public line network 3. If system usage exceeds expectations, a particular dial-in line (facsimile number) is assigned and unassigned to any extension fax machine and then reassigned to any extension fax machine. The time, that is, the period that is not assigned to any extension facsimile apparatus, becomes short.

If the period becomes too short, a situation occurs in which the specific facsimile number assigned to the guest has already been reassigned to another guest.
In that case, the facsimile document is transmitted to a person who is irrelevant to the intended guest, thus causing an erroneous delivery.

Further, the facsimile number (subscriber number) held by the center device 7 under the contract with the public line network 3
When a contract with the public line network 3 is made, if the numbers which are not similar to each other are selected as much as possible, erroneous delivery is likely to occur due to a dial error by the operator of the sender facsimile machine. However, if the number of extension facsimile machines serviced by the center device 7 is large, a large number of facsimile numbers contracted with the public line network 3 must be held accordingly, and the large number of facsimile numbers are selected so as not to be similar to each other. It is difficult to make a contract with the other subscribers of the public line network 3. Therefore, all the facsimile numbers held by the center device 7 cannot be similar to each other, and the facsimile number assigned to a certain extension facsimile device and the facsimile number assigned to another extension facsimile device are similar. This is likely to occur, and erroneous delivery due to a dial error by the operator of the sender facsimile machine is likely to occur.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a subscriber number assigning method capable of reducing the probability of erroneous delivery of communication data.

[0034]

A subscriber number assigning method according to a first aspect of the present invention is a private branch exchange for accommodating a plurality of extensions to which extension communication terminals each having a pocket level receiving function are connected, and a public line. A center device having a plurality of memories for accommodating a plurality of communication lines with network subscriber numbers and storing data received via the respective communication lines, and a pager originating station are each a public line network. Connected to the extension communication terminal, the center device assigns the subscriber number to the extension communication terminal in the center device, and the extension line communication terminal connected to the public line connects to the communication line corresponding to the subscriber number. The sent data is temporarily stored in the corresponding memory of the center device, and the corresponding extension communication terminal is sent from the center device via the pocket bell transmitting station. In the data communication system in which the extension communication terminal receives the data stored in the memory by calling from the extension communication terminal to the center apparatus to communicate by calling the page bell reception function of When releasing the assignment of the subscriber number assigned to the extension communication terminal, the center device stores the release time in association with the subscriber number and stores the subscriber number in the extension communication. When allocating to a terminal, assign the subscriber number with the longest elapsed time from the cancellation time among those subscriber numbers, and if the elapsed time is less than the specified time, notify that to the specified destination. Is characterized by.

A subscriber number assigning method according to a second aspect of the present invention is a private branch exchange device for accommodating a plurality of extensions to which extension communication terminals each having a pocket bell reception function are connected.
Public line network A center device that accommodates a plurality of communication lines with subscriber numbers and has a plurality of memories that store data received via each communication line, and a pocket bell originating station are public. Connected to the network,
Data sent from the external communication terminal connected to the public line to the communication line corresponding to the subscriber number by the center apparatus assigning the subscriber number to the extension communication terminal in response to a request from the extension communication terminal. Is temporarily stored in the corresponding memory of the center device, and the center device calls the pocket bell receiving function of the corresponding extension communication terminal from the center device via the pocket bell transmitting station. In the data communication system in which the extension communication terminal receives the data stored in the memory by calling and communicating with
When assigning the subscriber number to the extension communication terminal, the center device matches each digit of the subscriber number group assigned to another extension communication terminal with each digit of the unassigned subscriber number group. Of the subscriber numbers in the unassigned subscriber number group, and the subscriber number having the smallest degree of matching is assigned.

[0036]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Embodiments according to the present invention will be described in detail. In the embodiments described below, the data communication system to which the subscriber number assigning method according to the present invention is applied is the same as the hotel facsimile system shown in FIG. 8 referred to in the description of the conventional technique. Further illustration and detailed description thereof will be omitted, and description will be made with reference to them as necessary. Further, the procedure for assigning and deallocating a facsimile number, which is a subscriber number, to each extension facsimile device 4 is the same as the procedure described with reference to FIG. To do.

FIG. 1 is a block diagram showing a main configuration of a center device 7 which is a component for realizing the present invention.

In the figure, the center device 7 as a FAX server is realized by a general-purpose computer including a console 71 including a display and a keyboard and a main body 72. The main body 72 includes a CPU (central processing unit) 73, a memory 74, a voice codec 75, and a FAX.
A board 76, a hard disk device (HD) 77, etc. are built in, and these are connected to each other via a bus 78.

The CPU 73 controls the entire apparatus. The memory 74 is composed of a read-only ROM and a readable / writable RAM, and serves as a storage area for programs and data executed by the CPU 73 and a work area when the programs are executed. The voice codec 75 performs A / D conversion and D / A conversion of a voice signal used for a voice message or the like.
The FAX board 76 is a board for adding a facsimile communication function to a general-purpose computer, and a plurality of boards are provided.
Each is connected to a public telephone line. The hard disk (HD) 77 is used for storing the programs loaded in the memory 74 and for creating the above-mentioned mailbox, and has a large capacity so that a large number of facsimile image information can be stored. To be

A subscriber number assigning method according to the first embodiment of the present invention for preventing erroneous delivery of communication data (facsimile information), which is carried out in the center device 7 having the above-mentioned configuration, will be described.

The center device 7 responds to a facsimile number allocation request from any of the extension facsimile devices F1 to Fm, and has a number of subscriber numbers (facsimile numbers) held by a contract with the public line network 3. Among them, a facsimile number not assigned to another extension facsimile device is assigned to the extension facsimile device.

Further, when the center device 7 releases the assignment of the facsimile number assigned to the extension facsimile device in response to the request for releasing the assignment of the facsimile number from any of the extension facsimile devices F1 to Fm, The release time is stored in the hard disk 77 in association with the subscriber number.

FIG. 2 shows an example of the correspondence. In the figure, each facsimile number that has been deallocated and linked to the free list (B), which is a set of unassigned facsimile numbers, is a list of the times at which those facsimile numbers were deallocated (deallocation time). It is stored in a one-to-one correspondence with (A). In this embodiment, the date when the allocation is released (freed) is adopted as the release time, but the release time is not limited to this, and the release date and time or the elapsed time from the past time may be used. It goes without saying that the timer value at the time of deallocation of the timer that is timing can be set as the cancellation time.

Further, when the center apparatus 7 assigns a facsimile number in response to a facsimile number assignment request from any of the extension facsimile apparatuses F1 to Fm, it is a facsimile number not assigned to another extension facsimile apparatus. Then, the facsimile number having the longest elapsed time from the cancellation time is assigned.

As described above, the respective deallocated facsimile numbers are stored in association with the deallocation times, and the center device 7 performs the processing shown in the flowchart of FIG.

In the figure, the center device 7 monitors whether or not a facsimile number is allocated in response to a facsimile number allocation request from any of the extension facsimile devices (No loop of decision 101). If there is an assignment (the facsimile number assigned at this time has the longest (oldest) elapsed time from the release time, as described above) (Yes at decision 101).
s), the release time of the oldest facsimile number is shown in FIG.
Check with reference to the list shown in FIG.
1).

Then, the oldest facsimile number ("03-5742-000" in FIG. 2) which is about to be reassigned to the extension facsimile machine is newly generated.
1 ”) is released from the release time (05/05/95) within a predetermined period (for example, 2 weeks) (judgment 1
03). If it is not within the predetermined period (N of judgment 103)
o), return to decision 101 without doing anything. If it is within the predetermined period (No in judgment 103), a warning fax indicating that fact is transmitted to a predetermined destination (process 104) and the process returns to judgment 101.

As described above, when a facsimile number allocation request is issued from the extension facsimile machine, the facsimile line having the longest elapsed time from the cancellation time is allocated, whereby the subscriber line (facsimile number) contracted with the public line network 3 is allocated. ) When the number is assumed to be invariable, the period (free period) from when each facsimile number is assigned to one of the extension facsimile machines and then the assignment is cancelled until it is again assigned to one of the extension facsimile machines. If you extend it as much as you can and still its free period is less than the specified period,
As the usage status of the communication system becomes too congested, a fax document warning that is sent is sent to the system administrator or the like, and the administrator increases the number of contract lines with the public line network 3. By taking measures, it is possible to reduce the overcrowding of the usage state of the communication system. Therefore, the free period is also extended, and the probability that a facsimile document is erroneously transmitted to a guest different from the target guest can be kept below a certain value.

Instead of transmitting the warning fax to the predetermined destination in the process 104, other communication means such as transmitting the same contents by a voice message or transmitting by e-mail to the predetermined destination can be used. Needless to say.

Next, a subscriber number assigning method according to the second embodiment of the present invention for preventing erroneous delivery of communication data (facsimile information) will be described.

The center device 7 responds to a facsimile number assignment request from any of the extension facsimile devices F1 to Fm, and has several subscriber numbers (facsimile numbers) held by a contract with the public network 3. Among them, a facsimile number not assigned to another extension facsimile device is assigned to the extension facsimile device.

FIG. 4 shows a list of facsimile number groups (A) already assigned to any of the extension facsimile devices and a digit list assigned to each digit (B). Since the facsimile numbers in the assigned facsimile number group list (A) cannot be duplicated and assigned to other extension facsimile devices, a selection is made from the other fax number groups that have not yet been assigned to any extension facsimile device. Then need to be assigned.

In the second embodiment, as the selection method, attention is paid to the difference of the last four digits of each facsimile number in the assigned facsimile number group list (A). In addition, paying attention to only the last 4 digits is the center device 7
Since the line between the public line network 3 and the public line network 3 is a dial-in line, the dial-in line can be used to know which dial-in line has arrived by using only the last four digits of the number notified from the public line network 3. Because you can.

Then, a digit-assigned number list (B), which is a list of numbers included in at least one of the last four digits of each facsimile number, is created. The first digit of the assigned facsimile number group list (A) includes (4, 9, 6, 3, 9). Since 9 is redundantly included in the list, the first digit of the digit-assigned digit list (B) is (3, 4, 6, 9). Similarly, the second digit of the digit list assigned by digit (B) is
It becomes (3,4,5,8), the third digit becomes (2,3,5), and the fourth digit becomes (1,2,3,4).

On the basis of the digit-assigned digit list (B) created as described above, the center device 7 assigns a facsimile number to the extension facsimile device, the lower 4 of the facsimile numbers of the unassigned facsimile number group. Each digit of the digit is compared with each digit of the digit-assigned number list (B), and it does not match the digit group of each digit of the digit-assigned number list (B) of the unassigned facsimile number group as much as possible. Assign a fax number that has a digit in the corresponding digit.

For example, if the unassigned facsimile number group has a facsimile number of "03-5742-5691", the lower four digits of the facsimile number are the corresponding digit group of the digit list assigned by digit (B). , And assigns the fax number to the extension fax machine. Of course, in each of the facsimile numbers of the unassigned facsimile number group, each of the lower four digits is not always different from all of the corresponding digit groups in the digit group assigned digit list (B), and the three digits are not necessarily different from each other. Digit only 2
There may be a case where only one digit or only one digit is different, but in that case, it is possible to deal with it by preferentially allocating the largest number of different digits to the extension facsimile machine.

FIG. 5 shows a procedure for assigning a facsimile number to any extension facsimile machine. In the figure, the center device 7 waits until it becomes necessary to assign a facsimile number to an extension facsimile device in response to a request for assigning a facsimile number from any extension facsimile device (N in decision 201).
o loop). When it becomes necessary to assign a facsimile number (Yes in determination 201), the currently assigned facsimile number is searched (process 202). Then, a vacant facsimile number different from the in-service facsimile number assigned to the extension facsimile device is assigned.

Generally, an operator of a communication terminal device such as a sender facsimile device dials or pushes an erroneous number (if the sender communication terminal device is a facsimile number, an incorrect fax is made).
In this case, if you do not remember the recipient's facsimile number well, or if you cannot communicate by all means, you think that you made a mistake in the dialed or pushed facsimile number, and change the single digit digit of the facsimile number to redial. There is. Also, I made a mistake from the beginning by one digit (for example, I made a mistake in reading 8 and 0 or 1 and 7).
In some cases.

However, in the second embodiment, since the different facsimile numbers are assigned to the respective extension facsimile devices as much as possible, it is possible to prevent an incorrect fax from occurring and reduce the probability of erroneous delivery.

Next, a third embodiment of the present invention will be described.

Conventionally, when transmitting / receiving facsimile information between facsimile devices directly accommodated in a line network, specifically, when transmitting / receiving facsimile information between G3 facsimile devices directly accommodated in a public line network, In the pre-message procedure prior to the transmission / reception of facsimile information, the receiving side facsimile machine transmits the facsimile number of the transmitting side facsimile machine by the control signal TSI (transmitting terminal identification) transmitted from the transmitting side facsimile machine to the receiving side facsimile machine. It is possible to give a notice before receiving and outputting the facsimile document from the original facsimile device. The facsimile machine on the receiving side extracts the facsimile number of the sender from the control signal TSI and displays it on its own liquid crystal display or the like to notify the operator from which party the facsimile document is to be received. To use. Not only the G3 facsimile machine directly accommodated in the public line network but also the extension communication terminal such as the G4 facsimile machine connected to the ISDN line, the information for identifying the sender prior to the transmission of the communication data. Can be transmitted to the receiving side terminal device.

However, in the data communication system according to the present invention shown in FIG. 8, the facsimile information is first transmitted from the source facsimile apparatus 9 to the center apparatus 7, and then the facsimile information is transmitted from the center apparatus 7 to the extension facsimile apparatus. Since it is retransmitted, the control signal TSI transmitted from the transmission source facsimile apparatus 9 is received by the center apparatus 7 and does not reach the extension facsimile apparatus.

On the other hand, from the viewpoint of the operator of the source facsimile machine 9, there is no consciousness that the facsimile document is transmitted to the center machine 7, and it is directly transmitted to the guest of the hotel 1 who is the operator of the extension facsimile machine. I am thinking Similarly, the guest also intends to directly transmit from the sender facsimile machine 9.

Therefore, it is useful to improve the quality of the communication service to the guest by avoiding the operation of the sender facsimile machine 9 or the guest who is contrary to the above consciousness as much as possible.

Therefore, in the third embodiment, the center apparatus 7 receives and stores the contents of the control signal TSI from the source facsimile apparatus 9, and the extension facsimile apparatus receives and stores the content from the source facsimile apparatus 9. When the facsimile information is transmitted, the contents of the control signal TSI from the source facsimile device 9 which has been received and stored is used as the control signal CSI (callee) when the facsimile information is transmitted from the center device 7 to the extension facsimile device. It is transmitted to the extension facsimile machine as the terminal identification), and it is as if the contents of the control signal TSI from the transmission source facsimile machine 9 were transmitted directly to the extension facsimile machine. The control signal CSI is TSI.
On the contrary, from the called facsimile machine side,
This is for transmitting the identification information such as the facsimile number of itself to the facsimile apparatus of the transmission source.

Therefore, as shown in FIG. 6, the center apparatus 7 associates the image data (mailbox) received from the sender facsimile machine 9 with the content of the control signal TSI from the sender facsimile machine. To remember. As the storage method, the contents of the TSI are added as a suffix to the file name (for example, DATA1) storing the image data, and DATA1_035555577
77 (0355555777 is the content of the TSI).

Next, the control device T which the center device 7 receives together with the facsimile information from the sender facsimile device
A procedure for retransmitting the contents of SI to the extension facsimile will be described with reference to FIG.

In the figure, the center device 7 receives an incoming call from the sender facsimile device 9 (process 30).
1) It is checked which facsimile number has arrived, and the facsimile number is acquired (process 302). Then, the facsimile protocol is started (process 303),
In the pre-message procedure, TSI is received (process 304), and then image data is received (process 305).
The received TSI and image data are stored in association with each other by the association shown in FIG. 6 (process 306).

After that, the adapter device 5 of the corresponding extension facsimile machine is called via the pager transmission station 8 (process 307), and the called adapter device 5 calls the center device 7 (process 308). The center device 8
It is confirmed that facsimile image data is stored in the mailbox corresponding to the called adapter device 5 (process 309), and a communication link is established (process 31).
0), the facsimile protocol is started (process 31)
1). In the pre-message procedure for that protocol,
The center device 7 transmits the contents of the TSI received from the transmission source facsimile device 9 as the contents of the control signal CSI to be transmitted to the extension facsimile device (process 312), and then the transmission source facsimile device 9 transmits the CSI. The received facsimile image data is transmitted (process 31)
3).

The CSI transmitted to the extension facsimile machine in the process 312 is displayed on the liquid crystal display or the like of the facsimile machine 4, and the guest knows that the facsimile document from the sender facsimile machine 9 is about to be received. Since it is possible to perform the operation that matches the consciousness of the guest, it is possible to provide a data communication service without any discomfort.

In the embodiment described above, the center number is assigned to the subscriber number assigning method according to the present invention.
The present invention is applied to a facsimile communication system configured to provide communication service to a facsimile device connected to an extension of a private branch exchange device. However, the device connected to the extension of the private branch exchange device is not limited to the facsimile device, and may be a personal computer or other device. Data communication terminal. In that case, the communication data relayed by the center device is not the facsimile information but the message data of the electronic mail or the like.

Further, in the above-described embodiment, the case where the center apparatus installs the extension communication terminal, which is the object of the communication service, in the hotel has been described as an example. The same applies to other facilities such as dormitories.

[0073]

According to the first aspect of the present invention, the usage amount of the data communication system is increased, and a specific subscriber number is assigned to any extension communication terminal and subsequently deassigned, and then either When the elapsed time until being assigned to the extension communication terminal of is shorter than the predetermined period, by notifying the system administrator of that,
The administrator can be encouraged to take measures to increase the number of subscriber numbers (subscriber lines) with the network.
If additional subscriber lines are added, the elapsed time is extended, the period in which a specific subscriber number is not assigned to any extension communication terminal can be extended, and the probability of misdelivery can be reduced. .

According to the second aspect of the invention, when the subscriber number is newly assigned to the extension communication terminal, it is most similar to the subscriber number of the subscriber number group already assigned to the extension communication terminal. By assigning a non-subscriber number, even if the operator of the source terminal device makes a mistake in dialing, the probability that the dialed number will match another subscriber number will decrease. It is possible to reduce the probability of, and it is possible to provide a reliable data communication service.

[Brief description of the drawings]

FIG. 1 is a block configuration diagram showing a main part of a center device according to an embodiment of the present invention.

FIG. 2 is a diagram showing correspondence between a facsimile number and a deallocation time in the subscriber number allocating method according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing a processing procedure when a center apparatus assigns a facsimile number to an extension facsimile apparatus in the subscriber number assigning method according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a list for each digit of numbers included in each digit of an assigned facsimile number in the subscriber number assigning method according to the second embodiment of the present invention.

FIG. 5 is a flowchart showing a processing procedure when a center apparatus assigns a facsimile number to an extension facsimile apparatus in a subscriber number assigning method according to a second embodiment of the present invention.

FIG. 6 is a diagram showing correspondence between facsimile image data received by a center apparatus from a source facsimile apparatus and TSI in the third embodiment of the present invention.

FIG. 7 is a diagram showing a TSI received by a center apparatus from a source facsimile apparatus according to a third embodiment of the present invention;
It is a figure which shows the procedure of transmitting to an extension facsimile apparatus as SI.

FIG. 8 is a block diagram showing an example of a conventional data communication system.

FIG. 9 is a diagram for explaining the conventional data communication system together with FIG.

[Explanation of symbols]

 1 Hotel 2 Private branch exchange device 3 Public line network 4 Facsimile device 5 Adapter device 5a Pager receiver 6 Facsimile management device 7 Center device 7a Corresponding table 8 Pager originating station 9 Facsimile device 71 Console 72 Main body 73 CPU 74 Memory 75 Voice codec 76 FAX board 77 Hard disk (HD) 78 Bus F1 to Fm Extension facsimile machine R1 to Rm Guest room M1 to Mn Mail box

Claims (2)

[Claims] 1. A private branch exchange for accommodating a plurality of extensions to which extension communication terminals each having a pocket page reception function are connected, and a plurality of communication lines with public network subscriber numbers. A center device having a plurality of memories for respectively storing data received via the respective communication lines and a pocket level transmitting station are respectively connected to a public line network, and the center device is requested by the extension communication terminal. Then, the subscriber number is assigned to the extension communication terminal, and the data sent from the external communication terminal connected to the public line to the communication line corresponding to the subscriber number is temporarily stored in the memory corresponding to the center device. Then, by calling the pocket bell receiving function of the corresponding extension communication terminal from the center device via the pocket bell transmitting station, In the data communication system, in which the extension communication terminal receives the data stored in the memory by calling from the communication terminal to the center apparatus and communicating with the center apparatus, the center apparatus is a subscriber that is assigned to the extension communication terminal. When the allocation of the subscriber number is canceled, the cancellation time is stored in association with the subscriber number.On the other hand, when the subscriber number is allocated to the extension communication terminal, among the subscriber numbers, A subscriber number assigning method characterized in that a subscriber number having the longest elapsed time from the release time is assigned, and when the elapsed time is less than a predetermined time, the fact is notified to a predetermined destination. 2. A private branch exchange for accommodating a plurality of extensions to which extension communication terminals each having a pocket page reception function are accommodated, and a plurality of communication lines with public network subscriber numbers attached. A center device having a plurality of memories for respectively storing data received via the respective communication lines and a pocket level transmitting station are respectively connected to a public line network, and the center device is requested by the extension communication terminal. Then, the subscriber number is assigned to the extension communication terminal, and the data sent from the external communication terminal connected to the public line to the communication line corresponding to the subscriber number is temporarily stored in the memory corresponding to the center device. Then, by calling the pocket bell receiving function of the corresponding extension communication terminal from the center device via the pocket bell transmitting station, In the data communication system, in which the extension communication terminal receives the data stored in the memory by calling from the communication terminal to the center apparatus and communicating with the center apparatus, the center apparatus includes the subscriber number to the extension communication terminal. When assigning, the degree of agreement between each digit of the subscriber number group assigned to another extension communication terminal and each digit of the unassigned subscriber number group is compared, and the unassigned subscriber number group The subscriber number assigning method is characterized by assigning a subscriber number having the smallest degree of matching among the subscriber numbers.