JPH10210515A - Connection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the connection device by applying incoming call control to a terminal equipment with high possibility of connection desired by a caller so as to relieve useless reception thereby quickly starting communication with a desired opposite party. SOLUTION: A caller number detection means 117a detects caller number information being a caller telephone number by means of a control signal detected from a trunk line by a network interface section 113 at the arrival of a call. In the case of establishing a path in response to an incoming call, a communication recording processing means 117b stores the caller number information detected by the caller number detection means 117a in cross reference with an identification number of a slave set for final communication through the use of the path and its communication time to an incoming call communication data table 116a of a storage section 116. A re-incoming call control means 117c decides a slave set being a called destination among slave sets T11-T1n based on the recording in the re-communication data table 116a in the case of the arrival of an incoming call.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to, for example, ISDN
Private exchange which is connected to a network having a function of notifying a called party of a caller's telephone number to a destination, such as a network, and which accommodates a plurality of extensions and selectively exchanges and connects these extensions with the above network. The present invention relates to a device and a connection device such as a base unit of a cordless telephone system for accommodating a plurality of slave units via a wireless line and connecting these slave units to the network.

[0002]

2. Description of the Related Art As is well known, in a private branch exchange which accommodates a plurality of extension terminals, when a call is received, the extension terminal to which the call is to be received is preset by fixed data. For this reason, it is general that the user of the representative terminal set by the fixed data once responds to the incoming call and relays the call to the extension terminal of the communication partner desired by the caller.

In an office or a business office, a plurality of extension terminals are grouped by the fixed data. One of the terminal users in the group responds to the incoming call, and the responder responds to the call. The call is forwarded to the extension terminal of the communication partner desired by the user (within the group and outside the group).

As described above, in the conventional private branch exchange,
Since the caller needs to perform an intermediary operation before the caller is connected to the desired communication partner, the intermediary work is not only for the caller but also for the caller, and it takes time before the conversation with the desired person starts. There was such a problem.

On the other hand, in the prior art, Japanese Unexamined Patent Publication No.
No. 39, "An incoming call control method for telephone terminals"
In advance, a table in which the user sets the correspondence between the caller and the destination terminal is created, and the destination is determined based on the source information sent from the network at the time of the incoming call. I had to decide.

However, in this method, since the correspondence is fixed, it cannot cope with a change.
Since the user must update the data each time, there is a problem that it takes time and effort. This problem also exists in a cordless telephone system provided with a plurality of slave units used in homes, small stores, and the like.

[0007]

In connection devices such as a private branch exchange device and a cordless telephone system, a transfer operation is required until a caller is connected to a desired communication partner. There is a problem that the transfer work is troublesome for a user, and it takes time until communication with a desired partner is started.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has the advantage of reducing the needless work of routing a call to an extension terminal or a slave unit which is likely to be desired by a caller, and promptly communicating with a desired partner. It is an object to provide a connection device that can be started.

[0009]

In order to achieve the above object, a connection device according to the present invention is connected to a communication network having a function of notifying destination information of source identification information and a communication terminal. In a connection device that accommodates a plurality of communication lines connectable to the device and selectively connects between the communication line and the public network, a transmission that detects the identification information of the transmission source from a control signal coming from the communication network when a call is received. Source information detecting means, and communication for storing identification information of a communication terminal device that has last communicated with the source as an incoming communication record in association with the source identification information detected by the source information detecting means. When there is an incoming call with identification information of the caller, a communication terminal device corresponding to the caller detected by the caller information detecting means is determined from the incoming call record from the incoming call. And to constitute by and a call control means for terminating control communication terminal device as a destination.

In the connection device having the above-described configuration, the identification information of the transmission source notified at the time of the incoming call is associated with the identification information of the communication terminal device that last communicated in response to the incoming call, and is stored as an incoming call communication record. Keep it. Then, when there is an incoming call from the same source again, the incoming call is made to the communication terminal device (the terminal with which communication was last performed) stored in the incoming call communication record.

Therefore, according to the connection device having the above-described configuration, it is possible to control the incoming call to the terminal device which is likely to be desired by the caller, to reduce useless work, and to quickly start communication with a desired partner. Becomes

In the present invention, the communication record processing means may correspond to the identification information of the transmission source detected by the transmission source information detecting means, and may identify the identification information of the communication terminal device which has communicated with the transmission source last. And the end time of the last communication are stored as an incoming call record, and when there is an incoming call with the identification information of the caller, the incoming call control means records the incoming call record in the incoming call record corresponding to the caller of the incoming call. The present invention is characterized in that the communication end time is compared with the current time, and when the elapsed time is within a predetermined time, the incoming call is controlled with the communication terminal device corresponding to the source as the destination.

According to the connection device having this configuration, if a predetermined time has elapsed since the last communication was performed, no incoming call is made to the communication terminal device recorded in the incoming call communication record. For this reason, even if a communication terminal device with a low communication frequency, that is, a communication terminal device that is unlikely to be desired by the caller is recorded in the incoming communication record, after a predetermined time has elapsed, the above-described specific communication terminal device is repeatedly transmitted to the specific communication terminal device. Incoming calls can be prevented.

Further, in the present invention, the communication record processing means corresponds to the identification information of the transmission source detected by the transmission source information detecting means, and the communication record processing means of the communication terminal apparatus which has communicated with the transmission source until the end of the communication. The identification information and the number of times of communication are stored as an incoming call communication record, and when there is an incoming call with the identification information of the caller, the incoming call control means records the call in the incoming call record corresponding to the caller of the incoming call. It is characterized in that, among the communication terminal devices, a communication terminal device to be a destination is determined according to the number of times of communication, and the incoming call is controlled.

According to the connection device having this configuration, among the communication terminal devices that have communicated with the source of the incoming call until the end of the communication, the communication terminal device to be called is determined according to the number of times of communication. I have. For example, by setting a terminal device having the largest number of communication times or a terminal device having a history of a predetermined number of communication times or more as a destination, the terminal device most likely to be desired by the caller, Incoming call control can be performed for a plurality of terminal devices having different characteristics, and unnecessary communication work can be reduced, and communication with a desired partner can be started quickly.

Further, according to the present invention, the incoming call control means includes:
If the communication terminal device that has controlled the incoming call does not respond within a predetermined time, the incoming call control is performed on another communication terminal device.

According to the connection device having this configuration, even if there is no user of the communication terminal device which is likely to be desired by the caller, the incoming call control is performed for another communication terminal device.
For example, if the above-mentioned other communication terminal device is set to a terminal having a person who is always on standby, such as reception, even if the caller repeatedly makes a call, a specific communication terminal device with a high possibility of absence is provided. It is possible to prevent such a problem that the connection is not received forever.

A connection device according to the present invention accommodates a plurality of communication lines that can be connected to a plurality of grouped communication terminal devices, and stores, in a destination, identification information of a destination group and identification information of a transmission source. A connection device which is connected to a communication network having a function of notifying and selectively connects between the public network and the communication line. Information detection means for detecting the original identification information; and identification information of the group detected by the transmission source information detection means, identification information of the transmission source, and information of the communication terminal device which has last communicated with the transmission source. Communication record processing means for storing as an incoming communication record in association with the identification information; and when there is an incoming call with the identification information of the group of the destination and the identification information of the transmission source, from this incoming call A communication terminal device corresponding to the group and the transmission source detected by the source information detection means is obtained from the incoming communication record, and when the obtained communication terminal device is a communication terminal device in the group detected by the transmission source information detection means, ,
An incoming call control means for performing incoming call control using the obtained communication terminal device as an incoming call destination is provided.

In the connection device having the above configuration, the incoming call communication is made to correspond to the identification information of the group notified at the time of the incoming call, the identification information of the transmission source, and the identification information of the communication terminal device that has last communicated with the transmission source. It is stored as a record. When there is an incoming call again from the same source addressed to the same group, and when the communication terminal device recorded in the incoming communication record corresponding to the group and the source is a terminal of the group, the communication terminal device Is to be called.

Therefore, according to the connection device having the above configuration, even when a plurality of communication lines connectable to a plurality of grouped communication terminal devices are accommodated, a terminal device which is highly likely to be desired by a caller is provided. Since the incoming call control is performed, useless relay work is reduced, and communication with a desired partner can be started quickly. In addition, when communication is performed to the end with a communication terminal device in a group different from the group specified at the time of the incoming call, the communication terminal device will not be received at the next incoming call. It is possible to prevent ignoring and arriving at another group.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of the connection device according to the first embodiment of the present invention. The connection device shown in this figure is a base unit 100 of a cordless telephone system that accommodates a plurality of wireless communication terminal devices T11 to T1n (hereinafter referred to as slave units) via a wireless communication channel and exchanges connection with an ISDN network.

Base unit 100 includes a terminal interface (LIF) 112 having an antenna 111, a network interface (NIF) 113, a time switch circuit (TSW) 114, and a time switch control circuit (SW).
C) 115, a storage unit 116, a central control unit 117,
Clock section 118 and external interface section (IF) 11
9 and a maintenance terminal device 120.

The terminal interface unit 112 is
Various terminal interface operations such as transmission detection and transmission of an incoming signal are performed between the terminal 11 and T1n via the antenna 111 and the wireless channel.

The network interface 113 is an ISDN
A plurality of office lines from the network are accommodated, and control signals transmitted and received through the office lines are detected to perform various office line interface operations such as acquisition of office lines and detection of incoming signals.

The time switch circuit 114 is controlled by a time switch control circuit 115 to be described later, and the terminal interface section 112 and the network interface section 113
Are exchange-connected to establish a path between the slave units T11 to T1n and the public network. The time switch control circuit 115
The switching connection operation of the time switch circuit 114 is controlled in accordance with an instruction from the central control unit 117 described later.

The storage unit 116 uses a semiconductor memory such as a ROM or a RAM or a hard disk as a storage medium. The storage medium includes a control program of the central control unit 117 described later, various control data, and a normal incoming call control. In addition to the data indicating the destination at the time, a table 116a for storing the incoming communication record (hereinafter, referred to as an incoming communication data table) is stored.

This incoming communication data table 116a is
For example, as shown in FIG. 2, this is a record in which the calling number is associated with the identification number of the slave unit that has performed the communication with the calling number last and the time when the communication was completed.

The central control unit 117 includes, for example, a microcomputer as a main control unit. Its control functions include a new calling number detecting means 117a in addition to ordinary control means such as outgoing / incoming control and exchange control. And a communication record processing unit 117b and a re-incoming call control unit 117c.

Calling number detecting means 117a detects calling number information, which is the telephone number of the caller, from the control signal detected by the network interface unit 113 from the office line at the time of an incoming call. When a path is established in response to the incoming call, the communication record processing means 117b adds, to the calling number information detected by the calling number detecting means 117a, the identification number of the slave unit that has communicated last using the path. This time is recorded in the incoming communication data table 116a in association with the time.

The re-incoming call control means 117c determines an incoming call destination handset from the handset sets T11 to T1n based on the record of the incoming call communication data table 116a when there is an incoming call.

In addition, base unit 100 includes a clock unit 118 for controlling time, and an external interface unit 119 for connecting a maintenance terminal device 120 for performing maintenance and setting of base unit 100, and stores these units. The unit 116 is connected to the central control unit 117 via a bus line BL.

Next, with reference to the flowchart shown in FIG. 4, the operation of the base unit 100 having the above configuration when there is an incoming call with the calling number information from the ISDN network will be described. First, when there is an incoming call accompanied by calling number information from the ISDN, the calling number detecting means 117a detects the calling number information from the control signal detected by the network interface unit 113 (step 4a), and proceeds to step 4b.

In step 4b, the incoming call control means 117c searches the incoming communication data table 116a for the calling number information detected in step 4a. Then, in step 4c, it is determined whether or not the calling number information detected in step 4a is recorded in the incoming communication data table 116a.

If there is a record, step 4d
Move to On the other hand, when there is no record (for example, in the case of the first calling number to be received), the process proceeds to step 4g, and normal incoming control is performed.

The normal incoming call control means the central control unit 1
By means of the control 17, for example, a slave unit in which a responder is always on standby is set for control to make a call to the slave unit corresponding to the slave unit identification number stored in the storage unit 116 in advance.

In step 4d, the re-call control means 117
c is the date and time information (the last communication time information) recorded in the incoming communication data table 116a in association with the calling number information detected in step 4a, the current time (date and time) information from the clock 118, To determine whether the difference is within a predetermined time. Here, if it is within the predetermined time, the process proceeds to step 4e, and if it is longer than the predetermined time, the process proceeds to step 4g to perform normal incoming call control.

In step 4e, the re-call control means 117
c performs incoming call control on the slave unit having the slave unit identification number recorded in the incoming communication data table 116a in association with the calling number information detected in step 4a.

Here, for example, when the data shown in FIG. 2 is recorded in the incoming communication data table 116a, the calling number detected in step 4a is "0425-12-34".
If it is 56 ", incoming call control is performed on the slave unit T12.

In step 4f, the re-incoming call control means 117
c monitors whether or not the slave unit responds to the incoming call control in step 4e within a predetermined time. Here, if a response is made within a predetermined time, path establishment control is performed.
Go to g.

At step 4g, normal incoming call control is performed as described above, and the routine goes to step 4h. In step 4h, the central control unit 117 monitors whether or not the slave unit responds to the incoming call, performs path establishment control on the slave unit that has responded, and proceeds to step 4i.

In step 4i, the communication record processing means 11
7b monitors whether the established path has been released with the end of the communication, and if the path has been released, proceeds to step 4j.

In step 4j, the communication record processing means 11
7b records, in the incoming communication data table 116a, the identification number of the slave unit that has finally communicated and the end time thereof in association with the calling number. Here, if the same calling number already exists, its content is updated.

As described above, in the base unit 100 having the above configuration, when a path is established by an incoming call, the identification number of the slave unit that last communicated with the caller and the time at which the slave unit ends are identified by the calling number. Incoming communication data table 116
Stored in a. Thereafter, when there is an incoming call from the same calling number, the incoming call is made to the slave unit having the identification number stored in the incoming communication data table 116a.

Therefore, according to base unit 100 having the above configuration, when there is an incoming call from the same calling number, the incoming call control is performed for the last unit that communicated last. As a result, an unnecessary incoming call is reduced, and communication with a desired partner can be started immediately.

In the first embodiment, if a predetermined time or more has elapsed from the time recorded in the incoming communication data table 116a, the incoming communication data table 1
The incoming call control is not performed on the slave unit recorded in 16a.

For this reason, the slave unit having a low communication frequency, that is, the possibility that the sender has a low possibility is determined by the incoming communication data table 1.
Even if it is recorded in 16a, it is possible to prevent repeated arrival at the same handset after a predetermined time has elapsed.

Further, in the first embodiment, when the incoming call-controlled slave unit does not respond within a predetermined time, normal incoming call control is performed. Therefore, it is possible to prevent a problem that even if a slave unit that is likely to be absent is recorded in the incoming call communication data table 116a, it will not be answered forever.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the communication record processing unit 117b records the identification number of the slave unit that has finally communicated and the end time in the incoming communication data table 116a in association with the calling number, and If there is a record with the same calling number, it is updated.

Instead of this, for example, as shown in FIG. 3, the incoming communication data table 116a stores the calling number, the identification numbers of a plurality of slaves that have communicated last, and the number of times of communication for each of these slaves. Are stored in association with each other, and the communication record processing means 117b performs the control. The re-incoming call control unit 117c performs incoming call control on the slave unit having the largest number of communications based on the record in the incoming call communication data table 116a.

In master unit 100 having such a configuration, IS
The operation when there is an incoming call with the calling number information from the DN network will be described. FIG. 5 is a flowchart thereof. First, when there is an incoming call accompanied by calling number information from the ISDN, the calling number detecting means 117a detects the calling number information from the control signal detected by the network interface unit 113 (step 5a), and proceeds to step 5b.

In step 5b, the incoming call control means 117c searches the incoming communication data table 116a for the calling number information detected in step 5a. Then, in step 5c, it is determined whether the calling number information detected in step 5a is recorded in the incoming communication data table 116a.

If there is a record, step 5d
Move to On the other hand, if there is no record, step 5f
Then, normal incoming call control (similar to step 4g) is performed.

In step 5d, the re-incoming call control means 117
c searches for the slave unit with the largest number of communications among the slave units recorded in the incoming communication data table 116a in association with the calling number information detected in step 5a, and performs incoming call control on this slave unit. Do.

Here, for example, when the data shown in FIG. 3 is recorded in the incoming communication data table 116a, the calling number detected in step 5a is "0425-12-34".
If "56", the incoming call control is performed for the slave unit T12 having a large number of communication times.

At step 5e, the re-incoming call control means 117
c monitors whether or not the slave unit responds to the incoming call control in step 5d within a predetermined time. Here, if a response is made within a predetermined time, path establishment control is performed. If no response is made after a lapse of a predetermined time, step 5
Shift to f.

At step 5f, normal incoming call control is performed as described above, and the routine goes to step 5g. In step 5g, the central control unit 117 monitors whether or not the slave unit responds to the incoming call, performs path establishment control on the slave unit that has responded, and proceeds to step 5h.

In step 5h, the communication record processing means 11
7b monitors whether or not the established path has been released with the end of communication, and if the path has been released, the process proceeds to step 5i.

In step 5i, the communication record processing means 11
7b adds “1” to the value of the number of times of communication corresponding to the identification number of the slave unit that has communicated last, and updates the storage content of the incoming communication data table 116a. Note that “0” in FIG.
425-12-3456 ", the communication count is updated from" 5 "to" 6 ".

As described above, in base unit 100 having the above-described configuration, the identification number of the slave unit that has communicated with the caller lastly and the number of times are associated with the calling number in the incoming communication data table 11.
6a. Thereafter, when there is an incoming call from the same calling number, the incoming call is made to the slave unit that communicated most with this calling number.

Therefore, according to base unit 100 having the above configuration, the incoming call control is performed for the slave unit that has most frequently communicated with the detected calling number, so that the slave unit that is likely to be desired by the caller is called. As a result, an unnecessary incoming call is reduced, and communication with a desired partner can be started immediately.

In the above description, the normal incoming call control is performed when the slave unit that has performed the largest number of communications does not answer within a predetermined time. May be successively received in descending order of the number of times of communication with the child device.

Further, in the above description, the incoming call operation is performed only for the slave unit having the largest number of communications. However, instead of this, the incoming call operation is performed for a plurality of slave units up to a predetermined order. It may be performed.

Next, a connection device according to a second embodiment of the present invention will be described with reference to FIG. Master device (connection device) 200 shown in FIG.
0, but has two child unit groups (Gr1; child units T11 to T1) in comparison with the parent unit 100.
n, Gr2; slave units T21 to T2n), and the central control unit 217 and the storage unit 216 are different.

The above-mentioned slave unit group assumes a case where telephone numbers are assigned to each group, for example, as in the case of dial-in. In addition, the same components as those shown in FIG. 1 are denoted by the same reference numerals, and different configurations will be mainly described in the following description.

The storage unit 216 is, like the storage unit 116,
For example, a semiconductor memory such as a ROM or a RAM or a hard disk is used as a storage medium. In addition to a control program and various control data of a central control unit 217 to be described later, an incoming call communication for storing an incoming call record is provided. A data table 216a is stored.

Note that the terminating communication record referred to here is, for example, as shown in FIG. 8, for each group number, the calling number of the incoming call, and the identification number of the slave unit that last communicated with this calling number. This is a record corresponding to the above.

The central control unit 217 includes, for example, a microcomputer as a main control unit. Its control functions include, in addition to ordinary control means such as outgoing / incoming control and exchange control, a new incoming call group determining means 217a. When,
Calling number detection means 217b and communication record processing means 217c
And re-incoming control means 217d.

The destination group determining means 217a determines the destination group (Gr1 or Gr2) based on the control signal detected from the office line by the network interface unit 113 at the time of reception.
Is determined.

The calling number detecting means 217b, like the calling number detecting means 117a, detects calling number information, which is the telephone number of the caller, from the control signal detected by the network interface unit 113 from the office line when receiving a call. .

The communication record processing means 217c records the incoming call number received for each group in the incoming communication data table 216a in association with the incoming call and the identification number of the slave unit that communicated last. .

The re-incoming call control means 217d determines, when there is an incoming call in a group, the slave unit of the incoming call based on the record in the incoming call communication data table 216a corresponding to each group.

Next, with reference to the flowchart shown in FIG. 7, the operation of the base unit 200 having the above configuration when there is an incoming call with the calling number information from the ISDN network will be described.

First, when there is an incoming call with calling number information from the ISDN network, the incoming call group determining means 217a detects the destination group from the control signal detected by the network interface unit 113, and the calling number detecting means 217b outputs Calling number information is detected (step 7a). In the following description, it is assumed that the group that has received an incoming call is the group Gr1.

Next, at step 7b, the re-incoming call control means 2
17d retrieves the calling number information detected in step 7a from the table of the group Gr1 of the incoming communication data table 216a. In step 7c, as a result of the search in step 7b, it is determined whether or not there is a corresponding child device.

If there is a record, step 7d
Move to On the other hand, if there is no record (for example, the case of the first incoming call number), the process proceeds to step 7g to perform normal incoming call control. Note that the normal incoming call control here refers to the slave unit T11 constituting the group Gr1.
To T1n.

In step 7d, it is determined whether or not the slave unit stored in association with the calling number information searched in step 7a is of the group Gr1. Here, the searched child device belongs to the group Gr1 (T11 to T1).
n) In the case of (n), the process proceeds to step 7e, where the group Gr1
If not (T21 to T2n), step 7g
Then, the incoming call control is performed.

At step 7e, the re-call control means 217
d performs the above-described incoming call control on the slave unit corresponding to the calling number information retrieved in step 7b, and proceeds to step 7f.

Here, for example, when the data shown in FIG. 8 is recorded in the incoming communication data table 216a, the calling number detected in step 7a is "0425-12-34".
If it is 56 ", incoming call control is performed on the slave unit T12.

In step 7f, the re-call control means 217
d monitors whether or not the slave unit responds to the incoming call control in step 7e within a predetermined time. Here, if a response is made within a predetermined time, path establishment control is performed, and if a response is made after a lapse of a predetermined time, the process proceeds to step 7g.

At step 7g, normal incoming call control is performed as described above, and the routine goes to step 7h. In step 7h, the central control unit 217 monitors whether or not the slave unit responds to the incoming call, performs path establishment control for the slave unit that has responded, and proceeds to step 7i.

In step 7i, the communication record processing means 21
7c monitors whether or not the established path has been released upon termination, and if the path has been released, step 7
Go to j.

At step 7j, the communication record processing means 21
7c is the group G of the incoming communication data table 216a corresponding to the identification number of the slave unit that communicated last and the calling number.
Record in the table of r1. Here, if the same calling number already exists, its content is updated.

As described above, in the base unit 200 having the above configuration, when a path is established by a group incoming call, the incoming communication data table 216a corresponding to the group
Is stored in association with the calling number information and the identification number of the slave unit that communicated last with the caller. Thereafter, when there is an incoming call from the same calling number in the same group, the incoming call is made to the slave unit having the identification number stored in the incoming communication data table 216a.

Therefore, according to base unit 200 having the above configuration, when there is a group incoming call, the incoming call control is performed for the slave unit that last communicated with the caller, so that the caller may desire. The incoming call arrives at the child device having a high degree of reliability, so that useless relay work can be reduced and communication with a desired partner can be started quickly.

In addition, a group incoming call is received, and thereafter, the call is transferred to a handset of a group different from the group where the call was received, and the communication is terminated as it is, and the identification number of the transfer destination handset is recorded in the incoming call communication data table 216a. In such a case, the next call from the same caller does not receive an incoming call to the above slave unit, so that it is possible to prevent the group specified by the caller from being ignored and to control incoming calls to another group. .

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, an incoming call operation is performed only on one slave unit that satisfies a predetermined condition based on an incoming call communication record. Instead, for example, an incoming call may be made to a plurality of slaves, and an incoming call control (type of ringtone, presence / absence of light emission, etc.) different from that of the other slaves may be performed for a slave that meets a predetermined condition. It may be.

Further, in the above embodiment, the identification number of the slave unit with which communication was performed last is stored in the incoming communication data table 11.
Although the information is recorded in 6a (or 216a), instead of this, for example, means for monitoring the communication time may be provided, and the identification number of the slave unit having the long communication time may be recorded.

Further, in the above-described embodiment, the case where the master unit and the slave unit are connected via a wireless channel has been described as an example. However, for example, a connection is established via a wired line like a private branch exchange. It goes without saying that the same effect can be obtained even if there is. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0089]

As described above, according to the present invention, the identification information of the transmission source notified at the time of an incoming call is associated with the identification information of the communication terminal device which last communicated in response to the incoming call. It is stored as an incoming communication record. Then, when there is an incoming call from the same source again, the incoming call is made to the communication terminal device (the terminal with which communication was performed last) stored in the incoming call communication record.

Therefore, according to the present invention, since the incoming call is controlled to the terminal device which is highly likely to be desired by the caller, the unnecessary exchange work is reduced, and the private branch exchange which can start the communication with the desired partner quickly. Equipment can be provided.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of a base unit of a cordless telephone system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of an incoming communication data table 116a stored in a storage unit 116 of the master unit shown in FIG.

FIG. 3 is a diagram showing an example of an incoming communication data table 116a stored in a storage unit 116 having another configuration of the master unit shown in FIG.

FIG. 4 is a flowchart for explaining an operation when there is an incoming call with calling number information at the master unit shown in FIG. 1;

FIG. 5 is a flowchart for explaining an operation when a parent device having the table shown in FIG. 3 receives an incoming call with calling number information;

FIG. 6 is a circuit block diagram showing a configuration of a base unit of the cordless telephone system according to the second embodiment of the present invention.

FIG. 7 is a flowchart for explaining an operation when a group incoming call accompanied by calling number information is received by the base unit shown in FIG. 6;

FIG. 8 is a view showing an example of an incoming call communication data table 216a stored in a storage unit 216 of the master unit shown in FIG.

[Explanation of symbols]

 T11 to T1n, T21 to T2n slave units 100, 200 master unit 111 antenna 112 terminal interface unit (LIF) 113 network interface unit (NIF) 114 time switch circuit (TSW) 115 time switch control circuit ( SWC) 116, 216: Storage unit 116a, 216a: Incoming communication data table 117, 217: Central control unit 117a, 217b: Calling number detecting means 117b, 217c: Communication record processing means 117c, 217d: Recall control means 217a: Incoming call Group determination means 118 clock section 119 external interface section (IF) 120 maintenance terminal BL bus line

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04M 11/00 303 H04M 11/00 303

Claims (5)

[Claims] 1. A communication network which is connected to a communication network having a function of notifying a receiver of identification information of a caller and accommodates a plurality of communication lines which can be connected to a communication terminal device. A connection device for selectively connecting between the two, comprising: source information detecting means for detecting source identification information from a control signal arriving from the communication network at the time of an incoming call; and a source of the source detected by the source information detecting means. Communication record processing means for storing, as an incoming call record, the identification information of the communication terminal device that has communicated with the sender last, in accordance with the identification information; and, when there is an incoming call with the identification information of the sender, From the incoming call, a communication terminal device corresponding to the transmission source detected by the transmission source information detecting means from the incoming communication record, and incoming control means for performing incoming control with the obtained communication terminal device as a destination. A connection device comprising: 2. The communication recording processing means according to claim 1, wherein said communication record processing means is adapted to correspond to the identification information of the transmission source detected by said transmission source information detecting means, The end time of the last communication is stored as an incoming communication record, and when there is an incoming call with the identification information of the caller, the incoming call control means records the incoming call record in the incoming call record corresponding to the caller of the incoming call. Comparing the current communication end time with the current communication end time, and if the elapsed time is within a predetermined time, performs incoming control with the communication terminal device corresponding to the transmission source as a destination. Item 2. The connection device according to Item 1. 3. The communication record processing means corresponds to the identification information of the transmission source detected by the transmission source information detection means, and identifies the communication terminal apparatus which has communicated with the transmission source until the end of the communication. And the number of times of communication are stored as an incoming call record, and when there is an incoming call with identification information of the caller, the incoming call control means records the incoming call record corresponding to the caller of the incoming call. 2. The connection device according to claim 1, wherein a communication terminal device to be a destination of the communication terminal device is determined according to the number of times of communication, and the incoming call is controlled. 4. The incoming call control unit according to claim 1, wherein the incoming call control unit performs incoming call control on another communication terminal device when the incoming call-controlled communication terminal device does not respond within a predetermined time. Connecting device. 5. A function for accommodating a plurality of communication lines connectable to a plurality of grouped communication terminal devices and for notifying a destination of the identification information of the group of the destination and the identification information of the source of the destination. A connection device that is connected to the communication network and selectively connects the public network and the communication line, based on a control signal arriving from the communication network at the time of an incoming call, the identification information of the destination group and the transmission source. Information detection means for detecting identification information; identification information of the group detected by the transmission source information detection means; identification information of the transmission source; and identification of a communication terminal device which has last communicated with the transmission source. Communication record processing means for storing as an incoming communication record in association with information, and when there is an incoming call with the identification information of the destination group and the identification information of the transmission source, the A communication terminal device corresponding to the group and the transmission source detected by the transmission source information detection means from the incoming communication record, and the obtained communication terminal device is a communication terminal device in the group detected by the transmission source information detection means. In the connection device, the communication terminal device further includes an incoming call control unit that performs incoming call control using the obtained communication terminal device as an incoming call destination.