JP3135652B2 - Electronic 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 an electronic switching system, and more particularly to an improvement in a group holding function in an electronic switching system.

[0002]

2. Description of the Related Art Electronic exchanges for private branch exchanges are digitized and controlled by software, and have various functions in addition to basic functions such as exchange connection between internal and external lines and exchange between internal lines. Service is now possible.

A group holding function, which is one of various service functions provided by the electronic exchange,
Dial a group hold special number after hooking from a busy telephone in a group hold group consisting of several telephones, or press a function key registered in advance as a group hold function key on a digital multifunction telephone. Call on hold,
This function allows the user to release the hold and make a call by dialing the group hold response connection special number from another telephone in the group hold group or by pressing the group hold telephone key.

In such a group holding function, only one call can be held in one group holding group. That is, only one call can be held in the same group.

[0005]

The group hold function is:
This is a very convenient function when the incoming call is temporarily held after being answered and a call is made to a person who requests the call, or when it is desired to move from a seat to answer the call.

However, since the group hold function can only hold one call in the same group, if there is a call that has already been put on hold when the user wishes to use the group hold function, the group hold function is activated. The function cannot be used.

[0007] Therefore, when a group hold group is constituted by a large number of telephones, the frequency with which the group hold function cannot be used becomes higher. Therefore, the conventional group reservation group is extremely half-functional in function, and there is a need for improvement.

Therefore, the object of the present invention is to:
A group hold function for a plurality of calls in the group hold group is enabled, and a response to any of the calls in the plurality of group hold calls is enabled, so that a more convenient group hold function can be provided . Misoperation
Even if it is performed, the process ends as it is or it is incorrect
Prevent registration and incorrect hold-response connection
To provide an electronic switching system.

[0009]

In order to solve the above-mentioned object, the present invention is configured as follows. That is, the extensions are divided into groups in advance, and a predetermined group hold operation is performed from the extension telephone during a call to hold the call of the other party,
In a switching system having a group hold function in which the hold call can be answered and connected by performing a hold response connection operation from an extension phone in the group to which the extension phone to which the group hold operation belongs belongs, firstly, An identification number for collation at the time of hold response connection is set for each extension, and when a group hold operation is performed, a registration management means for registering a call held for the operated extension, and a group hold operation from one of the extension telephones When a response connection operation is performed on the called call, the system waits for the identification number for the verification
When the identification number is entered, the
Determines whether a hold call with the line on hold is registered
If a held call is registered, the
Connects to the extension phone that performed the answering operation and registers the held call
If it is not, control means for notifying the operator to that effect is provided.

Second, when a group hold operation is performed, an input of an identification number for verification upon connection of a hold response is waited. If an arbitrary identification number is input, the input identification number is already registered.
Determines whether it has been recorded and determines that it has not been registered
If the extension is performed, the extension
Register the held call and the input identification number,
If it is determined that the information has been recorded, the
Registration management means to know , when a response connection operation to the group-hold call from any extension telephone is performed,
Waiting for the input of the identification number for collation, if there is input of information that matches the registered identification number of the extension of the telephone that performed the hold operation, the extension of the matching identification number is held in the group on hold And control means for performing a connection for answering the call.

[0011]

In the apparatus having the above-mentioned structure, when a call during a call is put on hold using the group hold function, the call during the call is put on hold. The registration management means registers the call during the call corresponding to the operated extension, and when a hold response connection operation is performed from a telephone in the group, the control means inputs an identification number to the extension telephone which has performed the hold response connection operation. It waits and checks whether there is an identification number of the extension of the telephone which has performed the hold operation that matches the input identification number, and when there is a matching one,
The call held at the extension for which the matching identification number is set is connected to the extension for which the hold-response connection operation has been performed, and the hold is released for connection.

In the case of the second configuration, when an on-call call is put on hold, by inputting an arbitrary identification number,
The registration management means registers the call and the identification number corresponding to the extension that performed these operations, and when a hold response connection operation is performed from a telephone in the group, the control means controls the extension telephone that has performed the hold response connection operation. Waiting for the input of the identification number, and checking whether there is an identification number of the extension of the telephone which has performed the hold operation that matches the input identification number. The call held at the extension for which the number has been set is connected to the extension for which the hold response connection operation has been performed, and the hold is released and connected.

As described above, the call is registered in the extension corresponding to the extension operated during the hold operation, and the held call is entered by inputting the identification number at the time of the hold response connection operation. The call is held and the call is released and the call is connected if the match is made with the matching identification number registered for the extension whose extension was operated. Since the call holding is registered in association with the identification number for collation identification so that the held call can be distinguished, a plurality of calls can be held in a group in the group holding group, Can be answered.

[0014] Therefore, when performing procedures such as call holding, calling, and answering, if such a group holding function is used, the responder releases the holding of an arbitrary held call from any telephone in the group holding group and answers. This makes it possible to obtain an electronic exchange system that can be used as a convenient group holding function. Also hold
If the identification number entered during the response connection operation is incorrect
Is notified to the operator. For this reason, the operator
You can re-enter the correct identification number by knowing the erroneous input
You. In addition, the identification number entered when setting the hold
If used, the operator is notified to that effect and
In response, the operator enters another unused identification number.
It is possible to re-force. Therefore, duplicate identification numbers
Registration is prevented, which results in incorrect response
Answer connection can be prevented.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an exchange body, 2-1 to 2-n denote extension telephones, and 3-1 to 3-m denote office lines (external lines). is there.

The exchange body 1 accommodates extension terminals and office lines.
It performs exchange connection between extensions, between extension and outside line, and the like. Switching circuit 11, trunk circuits 12-1 to 12-m, line circuits (subscriber circuits) 13-1 to 13-n, control unit (Central control unit)
14, a storage unit 15, and the like.

The exchange circuit 11 performs exchange connection between extensions or from extension to extension and from extension to extension. The control section 14 controls the exchange operation of the switching circuit 11 and various other controls. Is the one that governs.

The storage unit 15 stores programs and various tables of the control unit 14 and data such as set function contents. The storage unit 15 updates and stores various information generated in the exchange. At the same time, although not shown, a program for controlling data exchange between the exchange 1 and a connectable maintenance terminal is also stored. The line circuits 13-1 to 13-n of the switch body 1 are connection interfaces provided for each extension, and serve as connection interfaces between the switching circuit 11 and each extension terminal.

The trunk circuits 12-1 to 12-m are connected to a switching circuit 11
This is a circuit that interfaces with the corresponding office lines 3-1 to 3-m, and also performs incoming call detection, DC loop closing for line capture, and the like. Although not shown, a tone transmitting circuit is connected to the switching circuit 11, so that various signal sounds required for the telephone system can be transmitted.

The above-mentioned components in the electronic exchange main body 1 are connected to a control unit 14 via a control highway 16,
The control unit 14 controls the line circuits 13-1 to 13-n and the trunk circuits 12-1 to 12 according to a control program stored in the storage unit 15 in advance.
The switching circuit 11 is controlled such that a communication path between -m is formed to enable a normal switching operation.

The control unit 14 has a preset group holding group (a group holding group in the example shown in FIG. 1) composed of several extension telephones among the extension telephones accommodated in the electronic exchange body 1. Group is the extension telephone
2-1 to 2-k) by dialing the group hold special number after hooking from the telephone during a call, or in advance if the telephone is a digital multifunction telephone. By pressing a function key registered as a group hold function key, a call can be put on hold, and for such held call, a group hold response connection special number from another telephone in the group hold group can be given. A function is provided in which the user can release the hold and make a call by dialing or pressing the group hold function key. Next, the operation of the present apparatus having such a configuration will be described.

(General operation) In such a configuration, if there is an incoming call from an outside line, the control unit 14
An incoming call is detected from 12-1 to 12-m, and an incoming call is made to an extension terminal set as a representative or directly to a corresponding extension. Then, a communication path is secured by the response of the extension terminal, and communication between the two is enabled.

When a call is made from an extension to an outside line, the control unit 14 searches for an empty one of the trunk circuits 12-1 to 12-m by a call operation of an extension terminal, and uses this empty trunk circuit to make a call. This is done by securing a route and outputting dial information to the central office. Then, when connected to the other party through the central office, communication becomes possible.

Between the extensions, receiving the extension number from the calling extension,
The incoming call is controlled for the line circuit of the extension number, and the connection terminal of the line circuit responds to secure the communication path,
Enable communication.

The above is the basic function of the electronic exchange main body 1 as an electronic exchange. Next, a description will be given focusing on a function which enables a group hold of a plurality of calls in a group hold group, which is a characteristic part of the present invention. 2 and FIG. (Group hold function (1))

First, a unique number is set in advance to a telephone constituting a group hold group as a group hold distinction number for collation at the time of a group hold response connection for a call that has been placed on hold by the telephone. By using this, an example in which the control unit 14 is provided with a function of enabling group hold for a plurality of calls within the group hold group and release of the held calls individually from the held calls is illustrated in FIG. This will be described with reference to FIG.

[A] to [C] in FIG. 2 indicate telephones of different extensions connected to the electronic exchange body 1, respectively, and sequentially show the operation transition based on the operation.

[A] and [C] are telephones in the same group holding group, and [A] and [B] are currently talking. Here, from [A], if the group hold special number dial or the group hold function key is pressed after hooking, in this case, the control unit 14 sets [B] to the group hold state.

The storage unit 15 stores a preset individual number (group hold individual number) corresponding to each member of the group hold group. Is used as a collation number for confirming which is the target when connecting to and communicating with an arbitrary telephone in the same group holding group. For example, if it is desired to connect a call held by a telephone set assigned a unique number of "2", dial "2" in the state of the group hold response connection and dial "2" to transfer the call to the telephone set that has performed the group hold response connection operation. You will be able to connect.

Therefore, in the case of the example of FIG. 2, the control unit 14 stores the call [B] in the storage unit 15 corresponding to the terminal that has performed the holding operation when holding the group, and sets the group hold response connection. When performing the operation, the user can dial the individual number corresponding to the terminal that has performed the hold operation to release the hold and connect to the terminal that has performed the group hold response connection operation.

FIG. 3 shows a data structure of the storage unit 15 for realizing the group holding function. For each group holding group number, an LDN (line directory number; extension) of a member of the group holding group is displayed. A management number consisting of a separately allocated management number), a group hold individual number (an identification number to be collated for identification when a specific held call is specified and answered and connected), and an LDN of a held call It is a table.

Which extension belongs to the group of which group holding group number, to which extension the group holding specific number of the belonging extension is, and the number of calls (holding calls) held by the extension by the group. If there is not, and if so, what LDN the partner has is known.

Therefore, when a call is put on hold by the group hold function, for example, the extension that has performed the operation belongs to the group with the group hold group number 1 LDN = ldn
Assuming that the extension number is 3, the group hold individual number is 1, and the other party is the extension number LDN = ldn8,
Ldn8 will be registered in the item corresponding to ldn3 in the table of the group of group holding group number 1, and ldn8 will be held by ldn3 of group holding individual number "1" belonging to group number 1. Is managed so that it can be understood.

In this management mode, [A] becomes [B]
Is registered in the group pending state. In this state, it is assumed that another telephone (in the example, [C]) belonging to the same group hold group as [A] goes off-hook, and then the off-hook telephone (ie, [C]) enters the group hold response connection special number. When a dial operation is performed or the group hold function key is pressed, the control unit 14 checks the storage unit 15 to determine whether there is a call that is on hold in the group.

In this case, since it is registered that [B] is in the group hold state, the control unit 14 knows that there is a call on hold in the group and changes [C] to a certain time.
Waiting for input of group hold individual number.

If there is no call on hold, the control unit 14 connects [C] to the tone transmitting circuit, thereby transmitting a reorder tone to [C] and notifying the erroneous operation. It is assumed that in the state of waiting for the input of the group hold individual number, the individual number “5” is dialed from [C] in the state of waiting for the input.

The control unit 14 compares the number dialed within the predetermined time ("5" in the example) with the group hold individual number corresponding to the group hold call stored in the storage unit 15. If there is a matching held call, the call ([B] in the example) is connected to [C] to enable communication.

The control unit 14 determines that there is no held call that matches the dialed number during the period of waiting for input of the group hold individual number, or that no dial was performed during the period. In this case, by connecting [C] to the tone transmission circuit, a reorder tone is transmitted to [C] and an erroneous operation is notified.

In this embodiment, when each extension belonging to a group hold group has a call whose extension is held in a group, the call is released and the call is answered (that is, in the case of a group hold response connection). ) Is assigned in advance a unique number for verification, and if the numbers match by dialing the number, the call on hold is connected to the extension on which the group hold response connection operation was performed. It is made to be able to communicate.

Therefore, since it is possible to freely select which of the plurality of calls on hold to answer, a plurality of calls can be held in a group hold group or a desired hold call can be held. Response connection to By the way, when the number of telephones in each group of the group holding group is small, this method in which the group holding fixed number is fixedly set for each telephone is convenient.

However, when the number of telephones in each group is large, it is inconvenient to fix the group hold unique number for each phone fixedly because the group hold unique number becomes too large. In such a case, it is more convenient to set an arbitrary group hold distinction number when performing group hold and use it for collation at the time of hold response connection. Therefore, this method will be described next. (Group hold function (2))

At the time of the group hold operation, the operator can give an arbitrary number as a group hold unique number for collation at the time of connection of a group hold response to a hold call. With reference to FIG. 4, a description will be given of a function of enabling group hold and individual hold response of the held call for the call of FIG.

[D] and [F] are telephones in the same group holding group, and [D] and [E] are currently talking. Here, if the group holding special number after hooking or the group holding function key is pressed from [D], the control unit 14 sets [E] to the group holding state and sets [D] for a certain period of time. , Waiting for input of the group hold individual number.

The control unit 14 recognizes the number dialed during this time as a group hold individual number ("2" in the example) for [E], and associates this number with the group hold individual number of the call already held in the group. If there is no overlap, and if there is no group-holded call, the storage unit 15 stores the call as the group-hold individual number for [E], and at the same time stores the call for [E]. FIG. 5 shows a data structure of the storage unit 15 for realizing the group holding function. Further, at this time, by connecting [D] to the tone transmitting circuit, a service reception tone is transmitted, and [D] is notified of the completion of group hold.

On the other hand, when the group hold individual number for [E] overlaps with the group hold individual number for a call that has already been held in the group, the control unit 14 also dials nothing within the predetermined time. If not, by connecting [D] to the tone transmission circuit, a reorder tone is transmitted to [D] and an erroneous operation is notified.

When another telephone (eg, [F] in the example) in the group hold group presses the group hold response connection special number dial after the off-hook or presses the group hold function key, the control unit 14 sets The storage unit 15 is checked to see if there is a call on hold in the group, and if there is a call on hold in the group, [F] is set to a state of waiting for input of an individual number on the group for a certain period of time. When there is no call on hold, the reorder tone is transmitted to [F] by connecting [F] to the tone transmission circuit to notify the erroneous operation.

The control unit 14 compares the number dialed within the predetermined time ("2" in the example) with the group hold individual number for the call on hold in the group stored in the storage unit 15 and matches. If there is a held call, the call ([E] in the example) is connected to F to enable communication. Control unit
14 is to connect [F] to the tone sending circuit when there is no held call that matches the dialed number within the fixed time, and when no dial is performed within the fixed time. Thus, a reorder tone is transmitted to [F], and an erroneous operation is notified.

As described above, in the embodiment (2), if the communicating party performs a group hold operation using the group hold function, the system waits for input of a unique number, and inputs a desired group hold unique number. With this unique number, the other party communicating is registered in group hold, a group hold response connection is made from a phone in the same group hold group, and when the previous group hold unique number is entered, group hold registration is performed with that unique number. The held call is connected to enable communication.

Therefore, when performing group hold, an arbitrary group hold unique number can be set to perform group hold, and it can be used for collation at the time of hold response connection. This is convenient when a group is suspended, for example, when there are many units.

The embodiments of the two types of group holding functions have been described above. Which of the methods for enabling group holding of a plurality of calls in the group holding group described above depends on which method is adopted. The best one should be selected according to the needs at the site where this system is used.

As a result, a plurality of calls can be held in a group within the group holding group, and an arbitrary call can be answered from the calls held in the group. As a result, an electronic exchange system having a more convenient group holding function can be obtained, for example, when calling a person who wants an incoming call.

As described above, in the system according to the present invention, extensions are grouped in advance, and a predetermined group hold operation is performed by the extension telephone during a call to hold the call of the other party. In a switching system having a group hold function in which an on-hold response connection operation is performed from an extension telephone in a group to which the hold call can be answered and connected, firstly,
An identification number for collation at the time of hold response connection is set for each extension, and when a group hold operation is performed, a registration management means for registering a call held for the operated extension, and a group hold operation from one of the extension telephones When the response connection operation to the performed call is performed, it waits for the input of the identification number for the collation, and when there is input of information that matches a preset hold number in the extension of the telephone that performed the hold operation. And control means for performing a response connection to a call on hold of a group held by the extension having the matching identification number.

Second, when a group hold operation is performed, an ID number for verification at the time of holding response connection is input, and if an arbitrary ID number is input, the hold is performed for the extension that performed these operations. Registration management means for registering a call and the identification number, and when an extension telephone performs a response connection operation to the call held in the group, waits for input of the identification number for verification, and Control means for executing a response connection to a call in a group on hold where the extension of the matching identification number is held when information corresponding to the registered identification number of the extension of the telephone that has performed is input. It is configured.

In the system having such a configuration, when a call during a call is put on hold using the group hold function, the call during the call is put on hold. At this time, in the case of the first configuration, the call is put on hold. The registration management means registers the call during the call corresponding to the extension for which the hold operation was performed, and when a hold response connection operation is performed from a telephone in the group, the control means inputs an identification number to the extension telephone which has performed the hold response connection operation. To determine whether there is an identification number of the extension of the telephone that has performed the hold operation that matches the input identification number, and if there is a match, the extension with the matching identification number is set. The call held by is connected to the extension for which the hold-response connection operation has been performed, and the call is released and the connection is released.

Further, in the case of the second configuration, when holding a call in progress, by inputting an arbitrary identification number,
The registration management means registers the call and the identification number corresponding to the extension that performed these operations, and when a hold response connection operation is performed from a telephone in the group, the control means controls the extension telephone that has performed the hold response connection operation. Waiting for the input of the identification number, and checking whether there is an identification number of the extension of the telephone which has performed the hold operation that matches the input identification number. A call held at an extension for which a number has been set is connected to the extension for which a hold response connection operation has been performed, and the hold is released and connected.

As described above, the call is registered in the extension corresponding to the extension operated during the hold operation, and the held call is entered by inputting the identification number at the time of the hold response connection operation. The call is held and the call is released and the call is connected if the match is made with the matching identification number registered for the extension whose extension was operated. Since the call holding is registered in association with the identification number for collation identification so that the held call can be distinguished, a plurality of calls can be held in a group in the group holding group, Can be answered.

Therefore, when a procedure such as call holding, ringing, and answering is performed, if such a group holding function is used, a respondent can release an arbitrary held call from any telephone in the group holding group and answer. This makes it possible to obtain an electronic exchange system that can be used as a convenient group holding function. Also hold
If the identification number entered during the response connection operation is incorrect
Is notified to the operator. For this reason, the operator
You can re-enter the correct identification number by knowing the erroneous input
You. In addition, the identification number entered when setting the hold
If used, the operator is notified to that effect and
In response, the operator enters another unused identification number.
It is possible to re-force. Therefore, duplicate identification numbers
Registration is prevented, which results in incorrect response
Answer connection can be prevented. The present invention is not limited to the embodiment described above and shown in the drawings, but can be implemented with appropriate modifications without departing from the scope of the invention.

[0058]

As described above in detail, according to the present invention, a group hold for a plurality of calls in a group hold group can be performed, and a response to an arbitrary call among the plurality of calls in the group hold can be made. If possible, a more convenient group hold function can be used , and erroneous operations can be performed .
Even if it is terminated,
Prevent registration and incorrect hold-response connection
An electronic switching system can be provided.

[Brief description of the drawings]

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

FIG. 2 is a diagram for explaining an operation example of the first embodiment of the device of the present invention.

FIG. 3 is a diagram showing an example of a management table structure for group hold management in the first embodiment of the present invention.

FIG. 4 is a diagram for explaining an operation example in a second embodiment of the device of the present invention.

FIG. 5 is a diagram showing another example of a management table structure for group hold management in the second embodiment of the device of the present invention.

[Explanation of symbols]

1: Electronic exchange body, 2-1 to 2-n: Extension telephone (extension communication terminal), 3-1 to 3-m: Office line (external line), 11: Exchange body, 12-1 to 12-m: Trunk Circuits, 13-1 to 13-n: line circuits, 14: control unit (central control unit), 15: storage unit.

Claims (2)

(57) [Claims] An extension is divided into groups in advance, and a predetermined group hold operation is performed by an extension telephone during a call to hold a call of a communication partner, and an extension in a group to which the extension telephone having performed the group hold operation belongs. In a switching system having a group hold function in which a call can be answered and connected to a hold call by performing a hold / answer connection operation, an identification number for hold / response connection verification is set in advance for each extension, and the group is held. A registration management means for registering a call held for the extension in which the operation was performed; and a response connection operation to the call held in the group from any of the extension telephones, the identification number for verification. Wait for input, and when the identification number is entered, this input identification number
A hold call is registered with the extension corresponding to
And if a held call is registered,
Connect the incoming call to the extension telephone that performed the answer connection operation,
If the held call has not been registered, the operator
An electronic exchange system comprising: a control unit for notifying the user of the electronic exchange. 2. An extension is divided into groups in advance, and a predetermined group hold operation is performed by an extension telephone during a call to hold a call of the other party, and an extension in a group to which the extension telephone having performed the group hold operation belongs. In a switching system having a group hold function in which a call can be answered and connected to a hold call by performing a hold response connection operation from a telephone, when the group hold operation is performed, an input of an identification number for hold response connection verification is performed, and any If there is an identification number input, this
Determine whether the input identification number is already registered,
This group is suspended if it is determined that it is not registered
The held call and the input identification corresponding to the operated extension
When the number is registered and it is determined that it is registered
Registration management means for notifying the operator of the fact, and when a response connection operation to the group-holded call is performed from any extension telephone, the system waits for the input of the identification number for verification, and Control means for executing a response connection to a call on hold in a group in which the extension of the telephone having performed the operation is input when information corresponding to the registered identification number of the extension is inputted. An electronic switching system, comprising: