JP3903404B2 - Automatic changer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic exchange device connected to the extension terminal device designated an outside line call.
[0002]
[Prior art]
Conventionally, in an automatic switching device that connects multiple terminal devices, the incoming caller from the outside responds once at the reception desk, etc., and when the connection request is received to the designated extension, the receptionist acts as an agent for the extension destination To change the connection.
[0003]
In addition, when not connecting to the reception desk, a dedicated line or a dedicated dial-in number is set up for each department, and the receptionist of each department switches the connection to the person in charge. In this case, even when a person in the company calls the company from a mobile terminal or a personal handyphone system (PHS) terminal, for example, from a business trip destination, reception of the receptionist is necessary.
[0004]
In order to deal with this, it is well known that a representative number and a dial-in number dedicated to each department are provided in addition to the company's representative number. The expansion was necessary, and the service was reduced in terms of cost.
[0005]
[Problems to be solved by the invention]
As mentioned above, even when a person in the company calls the company from a business trip destination, a response from the reception desk or a connection change operation of the receptionist is necessary, leading to a reduction in the work efficiency of the receptionist. .
[0006]
In order to solve these problems, a representative number or dial-in number dedicated to each department can be provided separately from the company's representative number, and it can be received directly by a designated department. Additional installation is required.
[0007]
In addition, it is possible to add an ISDN line and connect the designated extension by specifying the destination subaddress, but it is necessary to connect the existing analog line to the ISDN line on both the caller side and the callee side, which leads to an increase in cost. It was uneconomical.
[0008]
The present invention has been made in order to solve such a conventional problem, and can directly call a designated recipient by arbitrarily selecting a caller without adding a line or a dial-in number. An object of the present invention is to provide an automatic exchange device that can be used.
[0009]
[Means for Solving the Problems]
The invention of claim 1, wherein the present invention, the office line circuit to accommodate the station line, a line circuit for accommodating a plurality of terminal devices, connected to the central office line circuit and line circuit, the office line and a terminal equipment A communication path switch for forming a communication path between them, an incoming call means for receiving incoming information from an incoming call from the office line, a storage means for storing a predetermined caller number, and an incoming call when the incoming call means receives an incoming call from the local line. In the automatic switching apparatus comprising the incoming call control means for judging whether or not the caller number included in the information is stored in the storage means, and changing the incoming call type according to the judgment result, the storage means However, either one of DID incoming call type information or DI incoming call type information is stored in advance corresponding to the caller number, and when the incoming call control means receives the incoming call from the office line, The included caller ID is stored in the storage means. If it is determined that extracts the incoming type information corresponding to the caller number, if the incoming type information the extracted is DID call type information, performs DID call control, call type information is obtained by the extracted In the case of DI incoming call type information, DI incoming call control can be performed.
[0011]
According to the present invention, in the case of an incoming call from a specific person such as an in-house person, it is possible to directly designate and call the callee by arbitrarily selecting the caller without making a call to the reception desk or the like. Have
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block diagram showing an incoming call controller of an automatic switching apparatus according to the present invention. The automatic switching apparatus 1 includes a speech path switch 11, and the speech path switch 11 is connected to a digital line from another automatic switching system (public network) (not shown) and receives receiving information from the digital line. Including the digital station line trunk (ITC) 12 and the push button signal (PB signal) received through the ITC 12, and the push button signal receiving trunk (PBR) 13 for analyzing the received push button signal (PB signal). A plurality of line circuits (LIN) 16 that connect (interface) the response device 14, the plurality of terminal devices 15, and the speech path switch 11 are connected.
[0013]
Further, the communication path switch 11 is connected to a central processing unit (CPU) 18 via a bus 17, a control information storage unit 19 storing various control data and management data necessary for control in the central processing unit 18, control, and transmission. An incoming information storage device 20 is connected as storage means for storing incoming information managed in correspondence with the user's telephone number. Further, the central processing unit 18 receives various station data necessary for the exchange operation, incoming information corresponding to the outgoing telephone number, etc. Is connected to a maintenance terminal device 21 for inputting and outputting.
[0014]
FIG. 2 is a configuration diagram of a caller telephone number corresponding incoming call information management list stored in the incoming call information storage device 20 that stores incoming call information corresponding to the caller telephone number.
[0015]
This list is ringed at the time of calling the incoming call with the caller telephone number information IDi, the caller name LCDi, the destination dial number DSi including the extension number assigned to the accommodation position of the connected terminal device, the incoming call type MDO, and the incoming call. It is composed of a ringtone TONE indicating a ringtone pattern, is stored in the incoming call information storage device 20, and is searched via the central processing unit 18.
[0016]
FIG. 3 shows a caller telephone number search control sequence performed through the central processing unit 18. First, when incoming information from a digital line is received and a telephone number of a caller is extracted, a search request is notified to the incoming information storage device 20 via the central processing unit 18 (step S1).
[0017]
Upon receipt of the search request, the incoming information storage device 20 searches for incoming information corresponding to the caller telephone number managed internally, and returns the result of the presence / absence of matching data to the central processing unit 18 when the search ends (step). S2).
[0018]
Further, the central processing unit 18 manages the search timeout time by parallel processing, and if there is no response to the search result within a certain time, the central processing unit 18 determines that the incoming information storage device 20 is malfunctioning and performs abnormal processing such as forced disconnection (step) S3).
[0019]
FIG. 4 is a flowchart showing a procedure when the automatic extension apparatus 1 calls an incoming extension based on incoming call information corresponding to a caller telephone number when an external line is received (received information is received from a digital line).
[0020]
First, when the calling party on the outside line dials the subscriber number of the called party, the central processing unit 18 detects an incoming call via the ITC 12 (step S11). Next, the central processing unit 18 extracts the caller telephone number from the incoming information from the digital station line (step S12). If no caller telephone number is received due to non-calling conditions or the like, conventional incoming call control such as repeater incoming call or distributed incoming call is performed based on the incoming call form managed by the automatic switching apparatus 1.
[0021]
If the caller telephone number is received, the central processing unit 18 notifies the incoming call information storage device 20 of a search request for the extracted caller telephone number IDi (step S13).
[0022]
When the central processing unit 18 receives a result mismatch from the incoming information storage device 20 as a search result or when a search time-out occurs, the central processing unit 18 executes the conventional incoming processing as described above. If a result match is received as a search result, the incoming call type MDO is extracted (step S14).
[0023]
As a result, if the incoming call type MDO is DID (direct in dial) incoming (incoming call type that directly calls the extension corresponding to the selection signal (PB signal) from the caller), a temporary response signal is returned to the ITC 12 (step In step S15, the ITC 12 and the PBR 13 are connected to receive the subsequent incoming PB (push button) signal (step S16), and the second dial tone is transmitted to the other party (step S17).
[0024]
When the caller sends out the extension number of the destination as a PB signal, the automatic switching apparatus 1 receives the destination number as a PB signal at the PBR 13 (step S18). When the central processing unit 18 recognizes the called extension number from the received PB signal, the central processing unit 18 sends a calling sound to the caller and sends a calling signal to the called extension (step S19). When the incoming extension responds (step S20), the central processing unit 18 closes the communication path switch 11 between the ITC 12 and the incoming extension (step S21).
[0025]
If the incoming call type MDO read in step S14 is a DI (dial-in) incoming call (incoming call form for directly calling a predetermined extension), the called dial number (DSi) is extracted (step S22), and the incoming call target is an extension. In the case of, a ringing tone is sent to the caller in the same manner as a DID (direct in dial) call, and a call signal is sent to the extension to be called (step S19). If the incoming call type MDO read in step S14 is incoming by trunk, conventional incoming call control is performed as described above.
[0026]
In the above-described embodiment, the example using the incoming call information storage device 20 that stores incoming call information corresponding to the caller telephone number has been described. However, depending on the number of caller telephone numbers managed, the automatic switching device 1 is controlled. Needless to say, the information storage device 19 can be used. In the case of this method, a storage device corresponding to the caller telephone number is not necessary, which leads to an improvement in economy.
[0027]
Further, although the office line trunk has been described as a digital office line accommodating a digital line, it is also possible to use a caller telephone number notification by a modem signal using an analog line.
[0028]
In addition, since the caller telephone number correspondence incoming information management list also stores information related to incoming call control such as caller name and ringtone, the name of the caller is displayed when an incoming call is received, or in the case of a specific caller It is also possible to ring a specific ring tone.
[0029]
【The invention's effect】
According to the present invention, in the case of an incoming call from an in-house person or a specific person, it is not necessary to respond once at the reception desk or the like, and it is not necessary to change the connection to the target person, and the caller is directly designated by arbitrary selection of the caller Therefore, it is possible to make calls, so that the reception agent's telephone intermediary work is reduced, and an advantageous effect is obtained in that service improvement and efficiency improvement can be achieved.
[0030]
In addition, according to the present invention, an advantageous effect is obtained in that economic efficiency is not impaired because there is no cost increase such as line extension, dial-in number extension, and change to ISDN line.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an incoming call controller of an automatic switching apparatus according to the present invention.
FIG. 2 is a configuration diagram of a caller telephone number corresponding incoming call information management list stored in an incoming call information storage device;
FIG. 3 is a caller telephone number search control sequence performed through the central processing unit.
FIG. 4 is a flowchart showing a procedure for calling an incoming extension based on incoming call information corresponding to a caller telephone number when an external line is received.
[Explanation of symbols]
1 Automatic switching device 11 Communication path switch 12 Digital station trunk (ITC)
13 Push button signal receiving trunk (PBR)
14 Voice response device 15 Terminal device 16 Line circuit (LIN)
17 Bus 18 Central processing unit (CPU)
19 Control Information Storage Device 20 Incoming Information Storage Device 21 Maintenance Terminal Device

Claims (1)

A station line circuit for accommodating the station line;
A line circuit for accommodating a plurality of terminal devices;
A speech path switch that connects the office line circuit and the line circuit to form a speech path between the office line and the terminal device;
Incoming means for receiving incoming information by incoming from the station line,
Storage means for storing a predetermined caller number;
When the incoming call means receives an incoming call from the station line, it is determined whether or not the caller number included in the incoming call information is stored in the storage means, and the incoming call control is performed by changing the incoming call type according to the determination result. In the automatic switching apparatus provided with the incoming call control means to perform,
The storage means stores in advance either DID incoming call type information or DI incoming call type information corresponding to the caller number,
When the incoming call control means receives the incoming call from the office line, and determines that the caller number included in the incoming call information is stored in the storage means, the incoming call control means receives the incoming call corresponding to the caller number. The type information is extracted, and when the extracted incoming call type information is DID incoming call type information, DID incoming call control is performed, and when the extracted incoming call type information is DI incoming call type information, DI incoming call control is performed. Automatic switching device.

Images