JP3039896B2 - Termination control method of private branch exchange system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termination control system for a private branch exchange system.

[0002]

2. Description of the Related Art Conventionally, dial-in services for office lines are as follows.
The private branch exchange (hereinafter referred to as PBX) has a functional merit by designating and connecting to a specific terminal according to the dial-in incoming number coming from the station. However, it is also possible with the dial-in service that the PBX simultaneously displays an incoming call on a plurality of terminals and connects by responding to any of the terminals.

The extension telephones as the terminals include a multifunction telephone (hereinafter, referred to as an MFT) having a plurality of function buttons for displaying an incoming call and an electronic button telephone.

FIG. 10 shows an example of the function button panel of the MFT. The function buttons F1 to F4 display a dial-in call number 1111 and the function buttons F5 or F6 display a dial-in call number 2222. Is displayed.
Incoming displays of the dial-in incoming number 3333 are registered and arranged on the function buttons F7 or F8. Then, as described above, a plurality of MFs having the function buttons in which the incoming display of the dial-in incoming number is arranged in the same manner.
Group T.

[0005] In this way, at the time of dial-in incoming, the same incoming call display is made to all MFTs belonging to the same extension group. The office line and the response extension are connected by a response from any one of the MFTs in the same group, and a communication state is established.

[0006] F1, F1 on the function button of the MFT
If 2 is an incoming call display or a busy call display, if there is an incoming call at the dial-in incoming call number 1111, an incoming call display is made at F3 or F4.

[0007] Such allocation of the function buttons comes from the operation of the private branch exchange system as a key telephone system in which the correspondence between the office line and the function buttons is one-to-one.

[0008]

According to the incoming call control system of the conventional private branch exchange system configured as described above,
Since the number of function buttons provided in one MFT is limited, a large capacity PB
When trying to operate with the above function button array in X,
There is a problem that all the dial-in incoming numbers cannot be accommodated in the function buttons.

Even if all dial-in incoming numbers can be accommodated in the function buttons, if most of the function buttons are occupied by registration of the dial-in incoming numbers, the function buttons provided by the PBX are used. There has been a problem that other services such as dialing and one-touch automatic dialing cannot be used effectively.

[0010] That is, when an attempt is made to accommodate a station line in which a large number of dial-in called numbers are contracted in a large capacity PBX,
There has been a problem that the function buttons of the MFT cannot be used effectively.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a purpose thereof is to provide a private branch exchange system using a large-capacity PBX, in particular, to make effective use of the function buttons of the MFT accommodated in the PBX. It is an object of the present invention to provide a dial-in termination control system for a private branch exchange system which can be achieved.

[0012]

Means for Solving the Problems To accomplish the above object, the private automatic branch exchange, accommodates a plurality of terminals having functions can be registered multiple function buttons as an extension, further
Private branch exchange system that accommodates a plurality of dial-in office line to
In the incoming call control system , at least the plurality of function buttons
Also the dial ring display function button one, by grouping the plurality of terminal the die for each terminal group
Multiple dial-in calls
As well as the corresponding dial-in number
Number of backlogged dial-in calls that can be displayed on function buttons
Dial-in call to the private automatic exchange.
The incoming dial-in number is
Dial-in corresponding to the dial-in call display function button
Included in the called number and the dial-in call
Set the number of backlogged dial-in incoming calls for the display function button.
When the value is within the set value, the dial-in
Incoming call is displayed on the incoming call display function button .

[0013]

With this configuration, the number of function buttons for dial-in incoming call display can be reduced, and other service functions can be assigned to other function buttons for effective use of the function buttons.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a private branch exchange system according to an embodiment of the present invention; FIG. 1 is a block diagram schematically showing an incoming call control system of the private branch exchange system of the present invention.

An incoming call control system of the private branch exchange system of the present invention includes a private branch exchange (hereinafter referred to as PBX) 100,
A multi-function telephone (hereinafter, referred to as MFT) 200 which is a terminal having a plurality of function buttons capable of registering functions, an office line 300 from a public network, and an electronic key 400 which is a switching means for transmitting on / off information. have.

The PBX 100 includes a speech line switch 102 for connecting the MFT 200 to the office line 300, and an office line trunk (COT) 130 as an interface for connecting the office line 300 to the office line switch 102.
A multi-function telephone control circuit (hereinafter referred to as MTLIN) 120 as an interface for connecting the MFT 200 and the communication path switch 102;
Key monitoring circuit that monitors on / off information from
MSCN) 140, a central controller (CC) 104 for controlling the entire PBX 100, and the central controller 1
04, a storage device (MM) 106 as storage means for storing a control program and the like, the communication path switch 102, the office trunk 130, the storage device 106, and the MTLIN 120.
And a control bus 108, which is a signal line for connecting the MSCN 140 to the central control unit 104.

As shown in FIG. 2, on the panel of the MFT 200, function buttons F1 to Fn capable of registering functions are arranged in a matrix, and each of the function buttons has a display lamp. Depending on the lighting, blinking, or lighting color of the display lamp, an indication regarding each function is performed.

A large number of MFs housed in the PBX 100
T200 is divided into a plurality of extension groups such as group a, group b, and group c, so that the MFT 200 belonging to the same extension group has the same function assignment to the function button. The function buttons are controlled in units.

FIGS. 2 to 4 show examples of function button assignments for extension group a, extension group b, and extension group c, respectively. FIG. 2 shows that the function button F1 of the MFT 200 has been registered to display an incoming call when an incoming call of the dial-in incoming call number 1111 is detected. The function buttons in FIGS. 3 and 4 are registered in the same manner.

FIG. 6 is a memory map showing function button registration data for registering the function assignment of the function buttons of the MFT 200. For each function button, the function type, dial-in incoming number, minimum number of calls in the daytime, maximum number of calls in the daytime, minimum number of calls in the night, minimum number of calls in the night, maximum number of calls in the nighttime depend on the operation To register. That is, the private branch exchange system can have data of (maximum number of extension groups) × (number of function buttons of MFT 200).

A dial-in incoming call display function button (hereinafter referred to as a dial-in incoming call display button) is registered with the above data contents. Specify the function by function type,
By registering data associated with the function type in a column other than the function type, the function can be assigned.

The dial-in incoming number need not be the received dial-in incoming number itself, but may be an index corresponding to the dial-in incoming number at 1: 1 or n: 1.

The minimum number of accumulated calls is data for designating the minimum number of calls for displaying an incoming call to the dial-in incoming call display button. Incoming calls less than the number of backlogged calls are not displayed.

The maximum number of backlogged calls is data for specifying the maximum number of calls for displaying an incoming call to the dial-in incoming call display button. For an incoming call exceeding the registered maximum number of backlogged calls, the incoming call display is displayed. Incoming calls within the maximum number of backlogged calls are displayed.
In this case, for an incoming call for which no incoming call display is performed, the central control device 104 diverts to another incoming call display such as a dial-in incoming call display button of another extension group, or an attendant console incoming call, a distributed incoming call display, or Send a disconnection signal to the station.

After setting the incoming call display condition in this way, it is determined whether the incoming call display should be detoured or disconnected from the station.
FIG. 7 is a diagram showing a state in which the call display is bypassed,
Dial-in incoming call bypass data 106b shown in FIG.
A detour is determined based on the detour data registered in.

As the detour data, a dial-in incoming number or an index corresponding to a plurality of dial-in incoming numbers is registered in the same manner as the dial-in incoming number of the function button registration data 106a of the MFT 200. Further, the incoming call display condition can be freely changed by setting registration.

For example, by providing data on the number of accumulated calls for day and night separately, the destination of the incoming call display can be changed by day / night switching, and for example, an incoming call display form as shown in FIG. 5 can be taken.

Dial-in incoming call numbers 1111, 222
Is detected, the incoming call is displayed in the extension group a and the extension group b during the day, and the incoming call is integrated and displayed in the extension group c during the night. Also, dial-in incoming number 3
When the incoming call of 333 is detected, the incoming call is displayed in extension group c regardless of day or night.

Such an incoming call display mode includes minimum, maximum,
It is possible by a combination of the number of accumulated calls during the day and at night. The minimum number of accumulated calls during the day of the function buttons corresponding to the dial-in incoming numbers 1111, 222 of the extension group a and the extension group b is set to one or more, There is no limit on the number of calls that are stuck, and there is no minimum number of calls that are stuck at night. In addition, there is no minimum daytime accumulated call number of the function button corresponding to the dial-in incoming number 1111, 2222 of the extension group c, the minimum nightly accumulated call number is 1 or more, and the maximum accumulated call number is unlimited. , And extension group c
This is possible by setting the minimum number of accumulated calls during the day and night of the function button corresponding to the dial-in incoming number 3333 to 1 or more and the maximum number of accumulated calls to no limit.

Switching between day and night is performed by, for example, the electronic key 400. In FIG. 1, the electronic key 400 is a PBX1
00 is connected to the electronic key monitoring circuit 140 of the electronic key 40
The ON / OFF information of 0 is transmitted via the electronic key monitoring circuit 140 to FIG.
It appears as the scan data 140b at the position defined for the dial-in incoming number or the index corresponding to the plurality of dial-in incoming numbers in (3). According to the scan data 140b, any one of the number of accumulated calls during the day and the number of accumulated calls at night becomes a target of reference.

In the above description, the expressions of daytime and nighttime are used for simplification of expression, but the switching corresponds to the on / off information of the electronic key 400.

In FIG. 1, a central office trunk (COT) 1
Numeral 30 associates a memory block for each trunk on the storage device (MM) 106 and manages the state of the trunk. This memory block is hereinafter referred to as trunk memory 106.
Called d (TRM).

The management of the incoming state of the line trunk 130 is as follows.
This is done by chain connection, a well-known programming technique. When a dial-in call arrives at the trunk line trunk 130, the trunk memories 106d corresponding to the terminating (station line) trunk 130 are connected to each other by a next pointer existing on the trunk memory 106d.

At the time of the first dial-in incoming call, the address of the trunk memory 106i corresponding to the trunk 130i, which is the earliest incoming line trunk, is stored in the response waiting queue 106c, which is the earliest incoming memory area shown in FIG. It is stored in the next pointer NP0. The next pointer NPi of the chained trunk memory 106i is
At this time, it is "0".

Next, when there is a second incoming call, the address of the trunk memory 106j corresponding to the incoming call trunk 130j is stored in the next pointer NPi of the first connected trunk memory 106i. At this time, the next pointer NP of the second connected trunk memory 106j
j is “0”.

The trunk memory 106d corresponding to the incoming call trunk 130 in which the incoming call is detected in this way is successively connected by the next pointer, and the next pointer NPn of the last connected trunk memory 106n becomes "0".

The response waiting queue 106c shown in FIG. 7D is located in a predetermined area of the storage device 106 and serves as a first connection port of the trunk memory connection. A plurality (n) of dial-in incoming numbers correspond to n: 1.

The incoming call display on the dial-in incoming call display button is
The presence or absence of the incoming call display is determined by comparing the minimum number of accumulated calls and the maximum number of accumulated calls registered for each dial-in incoming call display button with the number of calls connected to the response waiting queue 106c.

Next, the operation of the incoming call control system of the private branch exchange system of the present invention configured as described above will be described.
FIGS. 8 and 9 are flowcharts showing the operation of the incoming call control and incoming call response control by the central control device 104.

First, the operation of the incoming call control is shown in FIGS.
This will be described with reference to FIGS.

In FIG. 1, the central control unit 104 is controlled based on the control program stored in the storage unit 106.
Refers to the data (MFT function button registration data 106a, dial-in incoming call bypass data 106b, etc.) stored in the storage device 106, and uses the control device (office line trunk 1).
30, multifunctional telephone control circuit 120, electronic key monitoring circuit 14
On the basis of the change information from (0), control information is sent to the control devices (the line trunk 130, the multifunction telephone control circuit 120, and the communication path switch 102), and each control device performs control according to the reception control information. Then, the incoming call control is executed.

When there is a dial-in call on the office line 300,
The central office trunk 130 detects this and the central control unit 10
Notify 4.

The central control unit 104 controls the central office trunk 13
In response to the dial-in incoming information from 0, the dial-in incoming control program shown in FIG. 8 is started.

The central control unit 104 executes step S101.
When a dial-in incoming call is detected in step S10,
MF with an index associated with the dial-in incoming number or a plurality of dial-in incoming numbers at n: 1
The T function button registration data 106a is searched. Then, in step S103, it is determined whether or not the corresponding dial-in incoming call display button is present. If there is, the electronic key scan data 140b is referred to in step S104, and the minimum daytime or nighttime corresponding to the scan data 140b is determined. The number of accumulated calls and the maximum number of accumulated calls are extracted and compared with the number of incoming calls in the trunk memory 106d connected to the response waiting queue 106c. In step S105, when the number is equal to or more than the minimum number of backlogged calls and less than the maximum number of backlogged calls, it is determined whether the incoming call display is possible.

If the incoming call display is possible, at step S106, the information necessary for the incoming call display such as the position of the incoming call display button, the inter type, the color type and the ring tone type is transmitted to the multifunctional telephone control circuit 120 in the same extension group. To all of the multi-function telephone control circuits 120 within. The multi-function telephone control circuit 120 controls the MFT 200 according to the reception control information.

Further, in step S107, it is determined whether or not the search for the MFT function button registration data 106a has been completed. If the search has not been completed, the process proceeds to steps S102 to S102.
The processing up to step S106 is performed. Step S1
When the search is completed in 07, it is determined in step S108 whether or not there is an incoming call display on the dial-in incoming call display button. If there is at least one incoming call display (step
Wear one or more dial-in incoming call display buttons through S106
In this case , the trunk memory 106d corresponding to the incoming trunk 130 is connected to the response waiting queue 106c in step S109. If there is no incoming call display on the dial-in incoming call display button (see step S106)
If not , in step S110, in accordance with the dial-in incoming call bypass data 106b, the incoming call display is bypassed by an incoming call display device such as a relay console or a distributed display panel, or a disconnection signal is sent to the station.

Next, the operation of the incoming call response control will be described with reference to FIGS. 1, 6, 7 and 9.

The trunk memory 106d corresponding to the incoming trunk 130 stores the response waiting queue 1 in the order of incoming calls as described above.
06c is connected by a next pointer with a connection port.

When the dial-in incoming call display button of the MFT 200 is pressed, the multi-function telephone control circuit 120 detects this and notifies the central control unit 104. Central control unit 1
04, upon receiving the response information from the multi-function telephone control circuit 120, activates the dial-in incoming call response control program shown in FIG.

The central control unit 104 executes step S201.
When a dial-in incoming response is detected in step S2,
In step 02, the minimum keyed call number during the day or night corresponding to the scan data is extracted by referring to the electronic key scan data 140b from the MFT function button registration data 106a. And
The next pointer of the response waiting queue 106c is traced by the minimum number of accumulated calls extracted in step S203, the trunk memory 106d is extracted, and the corresponding incoming trunk 13 is extracted.
0 is specified. By performing the process of following the chain of the response waiting queue 106c with the minimum number of backlogged calls, the trunk memory 106d corresponding to the central line trunk 130 that performs the connection process stores the local line trunk 13 to be connected next.
Since the address of 0 is stored, quick response in the order of incoming calls is possible.

The central control unit 104 determines in step S204
Then, response signal transmission information is transmitted to the next specified office line trunk 130. Then, the office line trunk 130 that has received the response signal sending information sends out a response signal to the corresponding office line 300.

Further, in step S205, the accommodation position corresponding to the multifunctional telephone control circuit 120 to which the MFT 200 whose dial-in incoming call display button is pressed is connected, and the office line trunk specified by following the response waiting queue 106c. A connection command for connecting the storage position 130 is sent to the communication path switch 102, and the communication path switch 102 is closed to form a communication path.

In step S206, answering line trunk 1
Next, the next pointer stored in the trunk memory 106d corresponding to the answering station line 30, ie, the address of the trunk memory 106d corresponding to the next answering waiting line trunk 130, and the address of the trunk memory 106d corresponding to the answering line trunk 130 are stored. Trunk memory 106d stored as a pointer, or response waiting queue 1
06c, the trunk memory 106 corresponding to the answering line trunk 130 is stored.
d is removed from the chain of the response waiting queue 106c.

Thereafter, in step S207, the minimum number of accumulated calls in the MFT function button registration data 106a (the minimum number of day or night accumulated calls extracted by the electronic key scan data 140b) and the response waiting queue 106c The number of trunk memories connected to is compared to determine the presence or absence of backlogged calls, and if there is an incoming call equal to or greater than the minimum number of backlogged calls, continue displaying the incoming call on the dial-in incoming call display button, step If the number of incoming calls is less than the minimum number of backlogged calls in S208,
All multifunctional telephone control circuits 12 in the same extension group
0, the multi-function telephone control circuit 120, which has transmitted the information of incoming call display extinguishing and received the information of incoming display extinguishing,
The FT 200 is controlled to extinguish the incoming call display.

According to the above embodiment, a plurality of MFTs 200
Are grouped, and an incoming call display condition for displaying an incoming call on the function button is set for each group. When an incoming call is received in one terminal group, an incoming call display or an incoming call is displayed according to the incoming call display condition of the one terminal group. By making a detour to another terminal group, reduce the number of function buttons for dial-in incoming call display, and allocate other service functions to the remaining function buttons to use them effectively. Can be planned.

Further, an incoming call (station line) receiving the earliest incoming call
Response waiting queue 1 storing the address of trunk 130i
06c, and a storage device 106 having a plurality of trunk memories 106d for storing the status of each line trunk 130, and the line trunk 1 receiving the incoming call after the earliest incoming call.
30j to the terminating (station line) trunk 130i.
Is stored in the trunk memory 106i corresponding to the telephone line trunk 13i which has received the incoming call.
The address 0 is stored in the trunk memory 106d corresponding to the line trunk 130 that received the incoming call immediately before the incoming call, and the address of the office line trunk 130i stored in the response waiting queue 106c is read out. Since the call connection processing is performed by reading the address of the line trunk 130, the central control unit 104 promptly sets the office line trunk 130 to the MFT 200
Can be sequentially connected.

Further, by providing the electronic key 400 for switching the setting of the above-mentioned incoming call display condition, the minimum number of accumulated calls, the maximum number of accumulated calls, the destination of the incoming call, and the like are changed, so that a detailed incoming call in accordance with the operating conditions can be obtained. It is possible to select a display and perform incoming call control that can support a large-scale private branch exchange system.

In the above-described embodiment, an example of the electronic key switching corresponding to the dial-in incoming number or a set of a plurality of dial-in incoming numbers has been described. It is not necessary to correspond to the set, and it is possible to switch all at once by the system. It is also possible to switch by using the internal clock of the PBX 100.

Also, the incoming call display is completely switched from one extension group to another extension group by electronic key switching. For example, the minimum delay during the daytime for the function button corresponding to the dial-in incoming number 1111 of the extension group a is set. The number of calls is one or more, the maximum number of accumulated calls is n (n> 1), the minimum number of daytime accumulated calls of the function button corresponding to the dial-in incoming number 1111 of the extension group c is n + 1, the maximum number of accumulated calls. If there is no limit, incoming calls less than n calls can be displayed in extension group a, and incoming calls exceeding n calls can be displayed in extension group c.

[0060]

According to the incoming call control system of the private branch exchange system of the present invention configured as described above, a private branch exchange has a terminal having a plurality of function buttons capable of registering functions as an extension and a plurality of dials. In a private branch exchange system accommodating an in-contract office line, the plurality of terminals are grouped, and an incoming call display condition for displaying an incoming call on the function button is set for each terminal group. In such a case, according to the incoming call display condition of the one terminal group, an incoming call display or a detour to another terminal group is performed, so the number of function buttons for dial-in incoming call display is reduced, and the remaining function buttons are displayed. By assigning and using other service functions, the function buttons can be effectively used.

Further, by providing a switching means for switching the setting of the incoming call display condition, it is possible to change the number of backlogged calls and the destination of the incoming call, thereby making it possible to select a detailed incoming call display in accordance with the operating conditions, Incoming call control that can support a private branch exchange system becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing an incoming call control system of a private branch exchange system according to the present invention.

FIG. 2 is a plan view showing a function button panel of a multifunction telephone (MFT) used in the present invention.

FIG. 3 is a plan view showing a function button panel of a multi-function telephone (MFT) of another group.

FIG. 4 is a plan view showing a function button panel of a multifunction telephone (MFT) of another group.

FIG. 5 is a correspondence table showing an incoming call display extension group with respect to a dial-in incoming number.

FIG. 6 is a memory map showing MFT function button registration data.

7 (1) is a memory map showing dial-in incoming call bypass data, (2) is a key, (3) is a memory map showing key scan data, (4) is a memory map showing a response waiting queue and a next pointer 5 is a memory map showing a trunk memory connected by a.

FIG. 8 is a flowchart illustrating an incoming call control processing procedure.

FIG. 9 is a flowchart illustrating an incoming call response control processing procedure.

FIG. 10 is a plan view showing a function button panel of a multi-function telephone (MFT) used for an incoming call control system of a conventional private branch exchange system.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Private branch exchange (PBX) 106 Storage unit (storage device: MM) 200 Terminal unit (multifunctional telephone: MFT) 300 Office line 400 Switching unit (electronic key)

Continuation of the front page (56) References JP-A-2-295331 (JP, A) JP-A-2-285796 (JP, A) JP-A-3-217158 (JP, A) JP-A-1-291596 (JP) JP-A-3-7458 (JP, A) JP-A-2-291792 (JP, A) JP-A-3-145857 (JP, A) JP-A-4-74092 (JP, A) 4-104695 (JP, A) JP-A-4-165895 (JP, A) JP-A-5-268361 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04Q 3/58 101-107 H04M 3/42-3/58

Claims (3)

(57) [Claims] To 1. A private automatic branch exchange, accommodates a plurality of terminals having functions can be registered multiple function buttons as an extension, and
In the incoming call control system of a private branch exchange system accommodating a plurality of dial-in office lines, the number of the plurality of function buttons is reduced.
One and dial ring display function button with the da of each terminal for each group by grouping the plurality of terminals
Multiple dial-ins for the ear-ring incoming call display function button
Incoming dial numbers and corresponding dial-in
Dial-in calls that can be displayed on the display function button
Set the number and dial in incoming calls to the private branch exchange.
The dial-in number received
Dial-in corresponding to the dial-in call display function button
Incoming call number and the dial-in
The number of backlogged dial-in incoming calls for the
When the value is within the set value, the dial-in
An incoming call control method for a private branch exchange system, wherein an incoming call is displayed on a ruin incoming call display function button . 2. The method according to claim 2, wherein the number of back-up calls of the dial-in incoming call is set.
If the set value is exceeded, dial in another terminal group.
2. The incoming call control method of the private branch exchange system according to claim 1 , wherein a bypass display is made on an incoming call display function button . 3. The method according to claim 2, wherein the number of the accumulated calls of the dial-in incoming call is duplicated.
Number and select one of them to dial in
2. The incoming call control method for a private branch exchange system according to claim 1, wherein whether or not it can be indicated is determined .