JP3414254B2 - Key telephone equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone device accommodating an ISDN line.

[0002]

2. Description of the Related Art ISDN lines are B1 and B2 per line.
Since it has two communication channels of, it corresponds to two external lines of the analog external line. Therefore, such ISD
When the N lines are accommodated in the key telephone device, one outside line may be used for home use and the other outside line may be used for stores, for example.

That is, when a plurality of outside lines are divided into groups as needed and used, in the button telephone device, an available outside line and a button telephone (slave unit) are set in advance for each group, and the corresponding group is thereby set. It is possible to make and receive calls via the applicable outside line of the cordless handset set to. Also, when adding an answering machine to such a key telephone device,
Set up absence for each group. Then, it is possible to access from the slave set in the corresponding group and reproduce the recorded message of the other party.

[0004]

In such a key telephone device, one of the ISDN lines is set as a group A for a store, and after the business is closed at the store and the absence setting is performed, the store is then set. The outside line set for use is rarely used and is in an empty state. However, there is a problem in that the outside line of the store in such a vacant state cannot be used by the home side of the group B to which the other outside line is assigned, and the usability is poor. Therefore, an object of the present invention is to improve the utilization efficiency of an ISDN line by making an external line, which is rarely used after being set absent, in another group.

[0005]

In order to solve such a problem, the present invention has a means for grouping an ISDN line into a plurality of outside lines and a means for allocating each key telephone to any one of the groups. When an answering machine is set for one outside line, an outside line capturing means is provided for enabling use of another group of button telephones for the outside line. Further, the key telephone is provided with an outside line lamp, and the outside line capturing means controls the display of the outside line lamp according to the usage state of the outside line. Further, there is provided means for sounding an alarm when a predetermined time has elapsed after the outside line capturing means has captured an outside line based on the use of a key telephone set of another group.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a key telephone device according to the present invention. In the figure, a key telephone device includes a main unit 1 that accommodates a digital office line (hereinafter, ISDN line) # 1 as an external line, and digital telephones (hereinafter, telephones) 3 _{1 to} 3n connected to the main unit 1 as extension lines. Consists of.

The main apparatus 1 is provided with a digital station line unit 11 which is an interface with the ISDN line # 1, and the digital station line unit 11 is the ISDN line # 1.
Circuit terminating circuit (DSU) 11A, transformer T
And a basic interface controller 11B which is a basic interface (2B + D) of ISDN.

Further, the main device 1 detects the clock signal (not shown) from the ISDN line # 1 and detects the present device by ISD.
Synchronization unit 13 for synchronizing to the N line side, each telephone 3 ₁
A recording / reproducing unit 14 for recording and reproducing a message message addressed to .about.3 _n, and a holding sound circuit 15 for sending a holding sound to an outside line when the outside line is held are provided.

Further, the main unit 1 includes a B channel control unit 18 for controlling the timing of transmission of two speech channels B1 and B2 of the ISDN line # 1 to the speech channel, and a time division multiplex speech channel which is a speech channel. Switch 19, telephone 3 _{1 to} 3n
A transmission circuit for transmitting data to and from the telephones, extension circuits 21 _{1 to} 21 n that are interfaces with the telephones 3 _{1 to} 3 n, a control unit 22 that controls the above respective units, and a storage unit in which the telephone number of the caller is registered. 23, and a power supply circuit 24 for supplying power to each unit of the main device 1.

On the other hand, in the telephone 3, as shown in FIG.
Controls the transmission circuit 31, the communication circuit 32, and the telephone 3 that perform transmission with the main device 1 and extract the power supplied from the main device 1 through the transmission line to supply each unit of the telephone. A CPU 33 is provided. CPU here
An operation unit such as an outside line key unit 34 including each outside line key, a dial key 35, a function key 36, and a hook switch 37 is connected to 33. Further, a memory 38, an LCD 39, an outside line lamp 40, and a tone ringer 41 for outputting a ring tone or the like are connected to the CPU 33. Then, the ring tone or the like output from the tone ringer 41 is transmitted from the speaker SP.

As is well known, the ISDN line # 1 has two communication channels (communication paths) B1 and B2 per line and corresponds to two analog lines. Therefore, the telephone 3 is normally provided with two outside line keys for one ISDN line # 1 and provided with two outside line lamps corresponding to the outside line keys. here,
In the present embodiment, one ISDN line # 1 corresponding to two accommodated analog lines is divided into groups and used as one outside line like an analog button telephone device. As shown in FIG. 3, one outside line key 34 and one outside line lamp 40 are provided. When the telephone 3 cannot use the ISDN line # 1, the outside line lamp 40 is turned on. Also, ISD
When the N line # 1 is available, the outside line lamp 40 is turned off, and by operating the outside line key 34 at that time, the outside line transmission becomes possible.

That is, an ISD having two communication channels
As shown in FIG. 7, the N line # 1 is divided into, for example, a store outside line and a home outside line into groups A and B, and among the respective telephones 3 _{1 to} 3 _n , for example, the telephone line 3 ₁ to 3 ₃ group a, the remaining telephone sets as a group B. In this way, by grouping, in the normal state of FIG. 7, the incoming call of the group A coming to the ISDN line # 1 belongs to the telephone set 3 belonging to the group A.
An incoming call is sent to _{1 to} 3 _3, and an incoming call of group B is received by a telephone belonging to group B. Here, the storage unit 23 of the main device 1
The caller number is registered in advance for the group B (that is, for home use), and if the caller number notified when the call arrives matches the registered number, the call is sent to the group B telephone. If they do not match, the incoming call is distributed to the groups A and B by making the telephone set of the group A receive the incoming call. Also, if the caller's number is not notified, it is considered as an incoming call of group A. On the other hand, when the telephones 3 ₁ to ₃ 3 belonging to the group A make a call, only the outside line assigned to the group A can be used, and when the telephones belonging to the group B make a call, only the outside line assigned to the group B can be used.

Next, when only the group A shown in FIG. 7 is set as the answering machine, the incoming call of the group A arriving at the ISDN line # 1 becomes an answering machine response, and the other party's message is recorded / reproduced in the main unit 1. Recorded in unit 14. Also,
The incoming call of group B is received by the telephone of group B. On the other hand, at the time of making a call to each of the telephones 3 ₁ to ₃ 3 belonging to the group A, only the outside line assigned to the group A can be used, but the telephone belonging to the group B makes a call via any outside line if each outside line is available. be able to.

Next, when only the group B shown in FIG. 7 is set to the answering machine, the incoming call of the group B coming to the ISDN line # 1 becomes an answering machine response, and the other party's message is recorded / reproduced in the main unit 1. Recorded in unit 14. Also,
The incoming call of the group A is received by the telephone set of the group A. On the other hand, at the time of making a call to the telephones 3 ₁ to ₃ 3 belonging to the group A, it is possible to make a call via any outside line if each outside line is available, and when making a call to the phones belonging to the group B, the outside line assigned to the group B is used. Can only be used.

Next, when the answering machine is set to both the groups A and B in FIG. 7, the incoming call of the group A arriving at the ISDN line # 1 becomes an answering machine response and the other party's message is stored in the main unit 1. Recorded in the recording / playback unit 14. Also, the incoming call of the group B becomes an answering machine response, and the other party's message is recorded in the recording / reproducing unit 14. On the other hand, when the telephones 3 ₁ to ₃ 3 belonging to the group A make a call, the group A
Only the outside line assigned to the group B can be used, and only the outside line assigned to the group B can be used when the telephone belonging to the group B is called.

FIG. 4 is a flow chart showing the operation of the control unit 22 of the main unit 1 which sets the answering machine (answering machine) for the groups A and B. When the store is closed and the telephone set belonging to the group A (store) sets up the answering machine, or when the telephone set belonging to the group B (home) sets up the answering machine when going out, step S
In 1, the setting information of the storage unit 25 is referred to, and it is determined whether or not the ISDN line # 1 having two communication channels is divided into groups. If it is divided into two groups A and B, it is determined in step S2 whether or not the absence set of group A is set. Here, if the absence set by the above-mentioned telephone is the absence set of group A, it is then determined in step S3 whether or not the absence set is set for group B. If the absence set is also set for group B, The process moves to the group A and B processing in step S4.

Further, in the case of the absence set of only the group A (in the case of "N" in step S3), the process proceeds to the process of group A in step S5, and the group A process shown in the flowchart of FIG. 5 described later is executed. It If the answering set by the above-mentioned telephone is not the answering set of the group A but the judgment in the step S2 is "N", it is next judged in the step S6 whether or not the answering set of the group B and the answering set of the group B. If so, group B in step S7
Move to processing.

FIG. 5 is a flow chart showing the above-mentioned group A processing, that is, the operation of the control unit 22 of the main unit 1 for controlling the incoming and outgoing calls of the telephones belonging to the group A. The main operation of the present invention will be described with reference to this flowchart.
When the outside line calling operation is performed on the telephone set belonging to the group A, "Y" is determined in "Send?" In step S11. Here, the other telephones belonging to group A are ISDN
If the line # 1 is not used, or if the outside line set as group A is not used by another group, or if the incoming call of group A has not arrived, the use of the outside line set as group A Therefore, the calling process via the ISDN line # 1 is performed in step S12, and the lamp display control process of turning on the outside line lamp 40 of the telephone 3 is executed in step S13.
In addition, another telephone belonging to group A is ISDN.
Even if line # 1 is being used, if the absence is not set for group A at this time, and the outside line set as group B is in the absence setting for group B, the outside line can be used. Then, the transmission process of step S12 is performed. Thus, an outgoing call is made by the telephone of group A via the ISDN line # 1.

If the telephone set goes off-hook during such an outgoing call, "End of call?" In step S14 becomes "Y". In this case, the ISDN line # 1 is released in step S15, and the telephone set in step S16. The lamp display control process of turning off the outside line lamp 40 is performed. Next, when the answering operation is performed by the telephone belonging to the group A and the judgment in step S17 becomes “Y”, the answering machine setting is canceled and the message of the group A recorded in the recording / reproducing unit 14 during the answering machine setting. In step S18, an answering machine reproducing process for reproducing is recorded.

Next, when an incoming call arrives at the ISDN line # 1, it is determined in step S19 whether or not the incoming call is for the group A. Here, when an incoming call is made to ISDN line # 1, group A
Is in the absence setting and the calling party number when the call arrives is stored in the storage unit 23.
If the caller number is not registered when the call is received, or if the caller's number is not notified when the call is received, the call is received in the group A and the determination in step S19 is "Y". Then, in step S20, it is determined whether or not the answering reply of the group A is possible, and if it is possible, the answering reply process of automatically answering the incoming call and recording the partner message in the recording / reproducing unit 14 is executed in step S21. On the other hand, if the answering response is not possible, then in step S22, processing such as transmitting the absence answering information to the telephone side and displaying it on the LCD of the telephone is executed.

When the incoming call to the ISDN line # 1 is not made, the answering machine is not set in the group A, and the caller number at the incoming call of the ISDN line # 1 is not registered and stored in the storage unit 23. In this case, or if the caller ID is not notified when the call arrives, the call will also come to Group A. In this case,
After "N" in step S19 and "N" in step S23, the telephone belonging to group A is ringed and the outside line lamp 40 is turned on. When a response operation from the telephone is input, it is determined in step S24 whether or not the telephone can answer the incoming call. If the telephone is a telephone belonging to group A and it is determined that the incoming call can be answered, the incoming call answering process is performed in step S25. Run.

If the calling party number notified at the time of the incoming call to the ISDN line # 1 is stored in the storage unit 23, the incoming call is an outside line incoming call set as the group B (that is, home). In this case, the process proceeds to “N” in step S19 and “Y” in step S23, and then proceeds to the group B process in step S27. Also in the group B process of step S27, if the absence setting is made, the same answering process as in step S21 is performed. If the absence setting has not been made, the incoming call response process similar to that in step 25 is performed.

Further, in the group B process, the same process as the group A process executed in each of the steps S11 to S18 described above is performed. That is, if another telephone belonging to group B is not using the ISDN line # 1, or if the outside line set as group B is not used by another group, or no incoming call for group B has arrived. In this case, the outside line set as the group B can be used. Therefore, in step S12, the calling process via the ISDN line # 1 is performed, and in step S13, the lamp display control process for turning on the outside line lamp 40 of the telephone 3 is executed. . Group B
Even if the other telephone belonging to the group is using the ISDN line # 1, the absence is not set for the group B at this time,
If the outside line set as the group A in the absence setting of the group A is available, the outside line can be used, and the transmission process in step S12 is performed. Similarly, when the telephone call of the group B telephone ends, "Y" in step S14 is similarly performed.
Through the line release process of step S15, step S1
The lamp display control process of 6 is similarly performed. Further, even when the operation of canceling the absence of the telephone of group B is performed, the step S
After "Y" of 17, the absence reproduction processing of group B is performed in step S18.

Next, regarding the processing of the groups A and B when both groups A and B are set to be out of office, in the case of an outside line transmission, only the outside line of the group to which each of the ISDN lines # 1 belongs belongs. Since the call origination is permitted, similarly, on the condition that the other telephones belonging to the own group are not using the ISDN line # 1 and the arrival of the own group has not arrived, step S12 of FIG. , And S13, a transmission process and a lamp display control process are performed, respectively. In the case of the end of the call, similarly, step S15,
In S16, the line opening process and the lamp display control process are performed, respectively. Further, in the case of canceling the absence, the absence reproducing process is similarly performed in step S18.

On the other hand, in the case of an incoming call, an answering / answering process is performed in each group. That is, group A
In the case of an incoming call, the determination in step S19 of FIG. 5 is “Y”.
Similarly, after "Y" of the judgment "whether the group A response is possible" in step S20, the group A is processed in step S21.
The absence answering process is performed. Further, in the case of an incoming call of group B, “N” in step S19 of FIG. 5 and step S
After “Y” in 23, the process proceeds to the group B process in step S27. Then, in the group B process of step S27, the same answering / answering process as that of the group A of step S21 is performed.

As described above, in the present embodiment, the ISDN line # 1 corresponding to two analog external lines is divided into two groups A and B, and the telephones are assigned to each group and assigned to each group. When a call is made to a telephone, the call is allowed when another telephone in the own group is not in use of the line, and when the call is received, the caller ID is notified and the caller ID is notified. The call is received by either one of the groups A and B.

Further, the group A. When both B and B are set to answering machine, when the call is made, the call is allowed when another phone in the group is not in use, and when the call is received, the presence or absence of the above notification of the calling number and registration are registered. The incoming call is distributed to each group according to each condition of the presence or absence of the call, and the answer is given. Also, when the answering machine is set for one of the groups A and B, the telephone set of the other group of the groups A and B will be used when the outside line used by the group for which the answering machine is set is free. Is made available. Here, when an outgoing call is made using an outside line other than its own group, the control unit 22 activates a timer (not shown), and when a predetermined time of this timer elapses, information indicating an alarm is transmitted to the corresponding telephone. , The tone ringer 41 of the corresponding telephone is driven, and the alarm sound is sent from the speaker SP. As a result, it is possible to prevent the outside line from being used by a telephone of another group for a long time, and thus avoid the problem that the telephone that should originally use the outside line cannot be used for a long time.

FIG. 6 is a diagram showing the status of the lamp display control executed in each step such as steps S13 and S16 in FIG. The display situation of the outside line lamp 40 of the telephone will be described based on this drawing. In the state of FIG. 6 where the ISDN line # 1 is divided into two groups, A and B, and both groups A and B are not set to leave, if the outside line of the group A is used, the telephone number of the group A is changed. Outside line lamp 4
0 lights up, but the outside line lamp 40 of the telephone of group B
Keeps off. If the ISDN line # 1 is not divided into groups, one ISDN line # 1 corresponds to two analog external lines. Therefore, the telephone is provided with two external line keys and an external line lamp as described above. Out of 1
The external line lamps will light up.

When the outside line of the group B is used in the state of FIG. 6, the outside line lamp 40 of the telephone set of the group A remains in the off state, and the outside line lamp 40 of the telephone set of the group B is maintained.
Lights up. In addition, when not grouped, one of the two outside line lamps is turned on. When the outside lines of the groups A and B are used together in the state of FIG. 6, the outside line lamps 40 of the telephones of the groups A and B are both turned on. In addition, when not grouped, two outside line lamps are turned on.

Next, in the state of FIG. 6 in which only the group A is set to be away, if the outside line of the group A is used and the outside line of the group B is not used, the outside line lamp 40 of the telephone set of the group A is turned on. However, the outside line lamps 40 of the telephones of the group B remain off. In addition, when not grouped, one of the two outside line lamps is turned on.

In the state shown in FIG. 6, when the outside line of the group A is unused and the outside line of the group B is used, the outside line lamps 40 of the telephones of the groups A and B both remain off. That is, in this case, since the outside line of the group A is not used, the outside line lamp of the telephone of the group A is turned off, but even if the outside line of the group B is used, the telephones belonging to the group B are as described above. Since the outside line of the group A can be used, the outside line lamp of the telephone does not light up. Then, at this time, the outside line of the group A is used by the telephone set of the group B, or the telephone line of the group A is assigned to itself (that is, the outside line of the group A).
Outside line), the outside line lamps 40 of both the telephones of groups A and B are turned on.

Next, when the outside line of the group A is used and the outside line of the group B is not used in the state of FIG. 6 in which only the group B is set to be away, the outside line lamps 40 of the telephones of the groups A and B are Both remain off.
That is, in this case, since the outside line of the group B is not used, the outside line lamp of the telephone of the group B is naturally turned off, but even if the outside line of the group A is used, the telephones belonging to the group A are as described above. Since the outside line of the group B can be used, the outside line lamp of the telephone does not light up.
Then, at this time, the group A telephone sets the group B
If the outside line of No. 1 is used, or the telephone of group B uses the outside line assigned to itself (that is, the outside line of group B), the outside line lamp 40 of both the telephones of groups A and B is turned on. In addition, in the state of FIG. 6, when the outside line of the group A is unused and the outside line of the group B is used, the outside line lamp 40 of the telephone of the group A is kept in the off state, but the outside line of the telephone of the group B is kept. The outside line lamp 40 is turned on.

Next, in the state of FIG. 6 in which the groups A and B are both set to the absence, the display state of the outside line lamp 40 is the same as the state of FIG. That is, when the outside line of the group A is used, the outside line lamp 4 of the group A telephone is
0 lights up, but the outside line lamp 40 of the telephone of group B
Keeps off. When the outside line of the group B is used, the outside line lamp 40 of the telephone set of the group B is turned on, but the outside line lamp 40 of the telephone set of the group A is kept off. When the outside lines of the groups A and B are used, the outside line lamps 40 of the telephones of the groups A and B are turned on.

As described above, one ISDN line # 1 is connected to two
The external lines are grouped as one external line, and the turning-off and turning-on of the external line lamps are controlled according to whether or not there is an absence setting in each group. Therefore, when the ISDN line # 1 can be used, the external line lamps must be turned off. When the telephone is used to make a call, whether or not the ISDN line # 1 can be used can be identified at a glance because the outside line lamp is always turned on when the telephone cannot be used.

In this embodiment, the ISDN line #
Although the example of the digital button telephone apparatus accommodating 1 has been described, the same effect can be obtained even when applied to an analog button telephone apparatus accommodating a plurality of analog lines. In addition, if the cordless telephone is applied to an analog key telephone device and the cordless telephone is accommodated as a key telephone, and there is a cordless telephone in the group set to answering machine, the outside line of that group is not used when making a call and the outside line of another group is used. To enable. Also, when a cordless telephone exists in the group set to be away, only incoming calls from other groups can be answered when an incoming call arrives.

[0036]

As described above, according to the present invention, I
When the SDN line is divided into a plurality of outside lines and each button telephone is assigned to any group, and when answering machine setting is performed corresponding to one grouped outside line, the button telephones of other groups for the outside line are set. Since it can be used, an outside line that is rarely used after the answering machine is set can be used by another group of button telephones, thus improving the utilization efficiency of the ISDN line. In addition, the key telephone is equipped with an outside line lamp, and the display control of the outside line lamp is performed according to the usage state of the outside line. Therefore, when the ISDN line is available, the outside line lamp is turned off, and when it is not available, the outside line lamp is turned off. Since is lit, whether or not the ISDN line can be used can be identified at a glance when making a call using the telephone. Also, after capturing an outside line based on the use of other groups of key phones,
Since the alarm sound is made to sound after the lapse of a predetermined time, it is possible to prevent an outside line from being used by a telephone of another group for a long time, and thus the telephone that should originally use the outside line cannot be used for a long time. Can be avoided.

[Brief description of drawings]

FIG. 1 is a block diagram of a main device constituting a key telephone device of the present invention.

FIG. 2 is a block diagram showing a configuration of a digital telephone.

FIG. 3 is a diagram showing a state of arrangement of each unit of the digital telephone.

FIG. 4 is a flowchart showing the operation of the main device when setting the absence.

FIG. 5 is a flowchart showing an operation of a main part of the main device.

FIG. 6 is a diagram showing a status of lamp display control of the main device.

[Fig. 7] Fig. 7 is a diagram for explaining a situation of access availability when ISDN lines are divided into groups.

[Explanation of symbols]

1 ... main unit, 3 ₁ to 3 _n ... digital telephones, # 1 ... digital station line (ISDN line), 11 ... digital office line unit, 19 ... time division multiplexing channel switch, 20, 31 ... transmission circuit, 21 ₁ ~ 21 _n ... extension circuit, 22 ... control unit, 2
3 ... storage unit, 34 ... outside line key, 40 ... outside line lamp.

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Claims (3)

(57) [Claims] 1. An IS for accommodating a plurality of key telephones
A button telephone device capable of accommodating a DN line as an outside line and setting an answering machine for each outside line, wherein the ISDN line is divided into a plurality of outside lines, and a means for assigning each button telephone to any group, and grouping An outside line capturing means for enabling use of a button telephone set of another group to the outside line when an answering machine is set for the outside line. 2. The button telephone device according to claim 1, wherein the button telephone is provided with an outside line lamp, and the outside line capturing means performs display control of the outside line lamp according to a usage state of the outside line. 3. The means according to claim 1, further comprising means for sounding an alarm sound when a predetermined time has elapsed after the outside line capturing means has captured an outside line based on the use of the key telephone set of the other group. Button telephone device.