JPH04316261A - Automatic transfer system for incoming call - Google Patents

Abstract

PURPOSE:To automatically transfer an incoming call regardless of indistinct destination and destination extension number and to save trouble to register the absence transfer by using an external computer to retrieve the destination of a called subscriber and its extension number. CONSTITUTION:A transmitter-receiver control circuit 3 detects and stores position information of a mobile transmitter-receiver through a fixed transmitter- receiver 2 at intervals of a certain time. When detected position information is changed, this position information is transferred to an external general computer 11 through a data link circuit 8 and is stored. Subscriber numbers of terminals installed in respective control ranges of individual fixed transmitter- receivers are preliminarily stored in the external computer 11. When detecting an incoming call, an exchange reports it to the external computer 11 and retrieves the position of a called subscriber and the subscriber number of the terminal nearest it and transfers the incoming call to the detected terminal.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stored program type digital private branch exchange, and more particularly to an incoming call transfer function.

0002

[Prior Art] Conventionally, this type of digital private branch exchange
There is a manual transfer method that has a forwarding function and transfers by operating the telephone keys as necessary, and a digital private branch exchange that has an automatic forwarding function automatically transfers the forwarding destination by registering the forwarding destination in some way. There was an automatic transfer method that automatically forwarded the information.

0003

[Problems to be Solved by the Invention] The manual transfer method of the conventional digital private branch exchange described above is difficult to use when the destination is unknown,
Transfer is not possible when the destination extension number is unknown. Furthermore, the automatic transfer method has the disadvantage that automatic transfer cannot be performed unless the automatic transfer function is set at the destination.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic incoming call forwarding system that forwards incoming calls in accordance with subscriber location information stored in an external computer.

[0005]

[Means for Solving the Problems] The automatic incoming call forwarding system of the present invention provides unique identification information that is output by portable transceivers carried by subscribers within a predetermined control range in a storage programmable digital private branch exchange. is detected at predetermined regular time intervals and stored as subscriber location information, and when the subscriber moves and the accumulated subscriber location information changes, this subscriber location information is transferred to an external general-purpose computer. a plurality of subscriber position detecting means; a general-purpose computer; a first storage means for storing position information of all subscribers corresponding to each of the subscriber position detecting means; and a plurality of subscriber position detecting means individually and a second storage means for pre-storing subscriber numbers of terminals installed within the respective control ranges, and the private branch exchange notifies the external computer of the incoming call and Then, based on the information stored in the second storage means, the location where the called party is present and the subscriber number of the nearest terminal are searched, and the incoming call is transferred to the searched terminal.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a storage program type digital private branch exchange showing one embodiment of the present invention. In FIG. 1, a mobile transceiver 1 wirelessly transmits and receives data to and from a fixed transceiver 2, and is connected to a communication path switch 7 via a transceiver control circuit 3 built into a private branch exchange. The first and second extension telephones 4 and 5 are connected to a call path switch 7 via a subscriber circuit 6. Further subscriber circuit 6
, the communication path switch 7 is connected to and controlled by a central processing unit 9. The main storage device 10 stores programs and various data for operating the central processing unit 9. Further, a general-purpose computer 11 is installed separately from the exchange main body, and is connected to the central processing unit 9 and to the communication path switch 7 via the data link circuit 8. The transmission/reception control circuit 3 and the data link circuit 8 are always connected through a communication path switch 9.

FIG. 2 is a schematic diagram of a method for detecting the position of a mobile transceiver according to this embodiment. A0 to A7 indicate individual numbers of the fixed transceiver 2, and P0 and P7 indicate identification numbers of the mobile transceiver. Position detection is performed using multiple fixed transceivers 2.
are arranged regularly, and the mobile transceiver 1 is placed within its control range.
This is realized by the location of FIG. 3 is a diagram illustrating an outline of the position detection process according to the present embodiment, and FIG. 4 is a flowchart according to the present embodiment.

First, the position detection method and position detection processing will be explained. Here, we will use an example where there are 8 mobile transceivers and 8 fixed transceivers, and the identification numbers of mobile transceiver 1 are P0 to P7, and the individual numbers of fixed transceiver 2 are A0 to A7. explain. The fixed transceiver 2 transmits a radio signal for detecting the position of the mobile transceiver at regular time intervals according to instructions from the transceiver control circuit 3. The mobile transceiver 1 that receives this signal returns identification numbers P0 to P7 as position information using a predetermined method. At this time, the fixed side transceiver can receive position information only when the mobile side transceiver 1 is located within the respective control range, and sends the status of whether or not the position information is returned to the transceiver control circuit 3 in a predetermined signal format. However, the transceiver control circuit 3 stores the current positional state of each mobile transceiver.

For example, when the mobile transceiver with the identification number P0 moves to the position shown in FIG.
, A4 only receive the position information reply from P0. Each transceiver control circuit 3 thus temporarily stores the position information of each mobile transceiver 1, and passes the information to the general-purpose computer 11 when a change occurs in the stored content. Assuming that the mobile transmitter P0 has moved from its initial state to the position shown in FIG. ) is sent. The general-purpose computer 11 updates the initial state storage contents stored in the internal storage device with the position information of A0, A1, and A4 received from the transceiver control circuit 3,
). The extension number at which each mobile transceiver is located is searched from this location information and the pre-stored correspondence table between fixed transceiver position data and extension numbers shown in FIG. 3(b). In other words, Figure 3
When the stored data in column P0 shown in (a) is scanned from A0, A1 to A7, 11001000 data are obtained. 11001000 from the stored data shown in FIG. 3(b)
Search for extension number 101 corresponding to . The search results are shown in FIG. 3(c). In the manner described above, the location of the subscriber with the mobile transceiver is detected, and the extension number of the detected location is searched.

Next, an example of exchange processing will be explained with reference to FIG. For example, when an incoming call to the first extension telephone 4 is detected (S100), the general-purpose computer 11 transmits the position information of the mobile transceiver 1 corresponding to the first extension telephone 4.
searches (S101). Based on this search result, the seat position is determined (S102), and if the subscriber with the mobile side transceiver 1 is present at his/her seat, a normal connection is made and the incoming call is connected to the first extension telephone 4. (S103) and ends the process. If the caller is away, the caller is sent a message informing the caller that the caller is away (S104), and is also asked whether the caller wishes to be transferred (S105), and is instructed to input a key. If the transfer is desired, the general-purpose computer 11 searches for the extension number of the location of the mobile transceiver 1 based on the location information of the mobile transceiver 1 and the data regarding the extension telephone (S106), and performs the transfer (S106). S107), the process ends. If the user desires to receive a call from a representative, a preset representative is searched for (S108), and the incoming call is connected to that extension (S109), and the process ends.

0012

As explained above, the present invention detects and detects location information transmitted by a portable mobile transceiver carried by a subscriber in a storage program type digital private branch exchange.
When the subscriber moves and the stored location information changes, the changed location information is transferred to a general-purpose computer installed externally, and the fixed side transceiver position data stored in advance by the general-purpose computer and its control are stored. By referring to the extension number correspondence table installed within the range and searching for the nearest extension number where the subscriber is located, when the destination is unknown or the extension number of the destination is unknown, Another advantage is that incoming calls can be forwarded without registering the destination.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing the position detection method of this embodiment.

FIG. 3 is a diagram illustrating a search for a subscriber number of the computer according to the embodiment.

FIG. 4 is a flowchart illustrating the operation of this embodiment.

[Explanation of symbols]

1 Mobile side transceiver 2 Fixed side transceiver 3 Transmitter/receiver control circuit 4 First extension telephone 5 Second extension phone 6 Subscriber circuit 7　　　　　　Call path switch 8 Data link circuit 9 Central processing unit 10 Main memory 11 General purpose computer

Claims (1)

[Claims] Claim 1: In a store-programmed digital private branch exchange, unique identification information output from portable transceivers carried by subscribers within a predetermined control range is detected at predetermined constant time intervals to obtain subscriber location information. a plurality of subscriber location detecting means for transmitting the subscriber location information to an external general-purpose computer when a change occurs in the accumulated subscriber location information as the subscriber moves; a first storage means for accumulating location information of all the subscribers corresponding to each subscriber position detecting means; and a first storage means corresponding to each of the plurality of subscriber position detecting means and installed within the control range of each of the plurality of subscriber position detecting means. A second device that stores the subscriber number of the terminal in advance.
storage means, and the private branch exchange notifies the external computer of the incoming call and determines the location of the called party and the nearest terminal based on the stored information in the first and second storage means. An automatic incoming call forwarding system characterized by searching for a subscriber number and forwarding the incoming call to the searched terminal.