JPH03224392A - Key telephone system - Google Patents

Abstract

PURPOSE:To set a night setting state automatically by allowing a control section to revise an incoming call ring destination to other telephone set when a designated telephone set does not reply for a prescribed time or over with respect to an incoming call from a public telephone set and storing the revision of the incoming call ring destination to a storage means. CONSTITUTION:When a call comes from a public telephone line 2 at night and nobody is resident, an incoming call ring state remains in a telephone set 3-1. When a timer 16 reaches a setting state in this state, a detection signal is sent from the timer 16 to a control section 15. Upon the receipt of the detection signal, the control section 15 revises the incoming call ring destination and stores the night mode setting to a memory 17. Then an incoming call signal is sent to a telephone set such as 3-2 being an incoming ring destination at night and the incoming ring tone is sent from the telephone set 3-2. When the telephone set 3-2 replies the incoming call, the control section 15 drives a relay 8 to connect a link switch section 5 to a public telephone line 2 through a contact 8a.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a button telephone device that changes the telephone to which an incoming call rings between daytime and nighttime.

BACKGROUND OF THE INVENTION Conventionally, this type of button telephone device has been equipped with a night setting switching function by manual operation or an automatic night setting switching function using a clock, and the telephone to which an incoming call will ring can be changed manually or automatically at night. It is known whether the structure is capable of doing this or not. Hereinafter, an outline of the above-mentioned conventional button telephone device will be explained with reference to the drawings.

FIG. 2 is a schematic block diagram showing a conventional key telephone device. In FIG. 2, 51 is a key telephone main device, which is connected to a public telephone line 52 and a total of 7 telephones 53 and 54. Telephones 53 in groups 5 to 6 in total are installed, for example, in offices, stores, reception desks, etc., and ring in the daytime, and telephones 54 in groups 5 to 6 are installed, for example, in guard rooms, residences, etc. , the incoming call is set to ring at night, and this setting can be made by a night setting switching function manually operated from the telephone 53, 54, or by an automatic night setting switching function provided in the button telephone main device 51 and using a clock. It is done.

The operation of the above configuration will be described below.

When receiving a call from the public telephone line 52, during the daytime when there are people in the office etc., the button telephone main device 51 emits an incoming call ringing sound from the chargers 53 of groups of 4 to 4 in total. When someone disappears,
The button telephone main unit 51 causes the telephones 54 of groups 5 to 7 to emit incoming ringing tones by the night setting switching function.

In this way, even with the above-mentioned conventional button telephone device, the night setting switching function allows the incoming call to ring on the side of the telephone where a person is present when a call arrives at night.

SUMMARY OF THE INVENTION However, in the above-mentioned conventional button telephone device, when switching to the night setting by manual operation, the operation is troublesome because the setting operation has to be performed every day. If you change the settings, you will need to reset the settings every time you change business hours, holidays, etc.
There was a problem that it was difficult to operate.

The present invention solves the above-mentioned conventional problems, and can automatically set the incoming call ringing destination at night without performing any setting operations. It is an object of the present invention to provide a button telephone device that can improve convenience without having to change the settings every time a change is made.

Means for Solving the Problems In order to achieve the above object, the present invention detects the incoming state of a specified telephone in response to an incoming call from a public telephone line, and if the designated telephone does not respond for a certain period of time or more, the control section detects the incoming call. It is equipped with a detection means for sending a signal and changing the ringing light of an incoming call to another telephone, and a storage means for storing the fact that the ringing destination of an incoming call has been changed.

According to the present invention, when the detection means detects that the specified telephone does not respond to an incoming call from a public telephone line for a certain period of time or more, this detection signal is sent to the control section, and the The ring control unit changes the ringing destination of the incoming call to another telephone set and causes the incoming call to ring. By storing this change in the incoming ringing destination in the storage means, the night setting state is automatically set, so that the next time a call is received, the incoming call ring can be automatically set from the telephone set to the night setting.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram showing a key telephone device according to an embodiment of the present invention. In FIG. 1, 1 is a key telephone main device, 2 is a public telephone line, and 3-1, . . . , 3-n are telephones. In the button telephone main device 1, 4 is an incoming call detection unit that is connected to the public telephone line 2 and detects an incoming call, and 5 is a link switch unit that connects the central office line 2 and the telephone 31, . . .
3-n and connect via transformer 6.7.

A relay 8 has a contact 8a between the office line 2 and the link switch section 5 for connecting the relay. 9 and 10
is a resistor and a capacitor connected in parallel with contact 8a, 11
is a diode that is connected in parallel with relay 8 and absorbs the reverse voltage generated when relay 8 is turned on and off, and 12 is a ringer (
RBT), dial tone (DT), and busy tone (BT) on the phone 3.
-1, . . . 3-n, and is connected to the link switch unit 5. Reference numeral 13 denotes a communication interface section, which is connected to the telephones 3-1, . . . , 3-n via a transformer 14. Reference numeral 15 denotes a control section that controls the entire apparatus, into which an incoming call detection signal from the incoming call detection section 4 is inputted, and information from the communication interface section 13 is inputted thereinto. 16 is a timer, telephone 3-1,
. . 3-n is detected, and when the set value is reached, that is, when it is detected that there is no response for a certain period of time, a detection signal is sent to the control unit 15 to set the nighttime setting.

A memory 17 is connected to the control unit 15 and stores information that the telephones 3-1, . . . , 3-n are set for night time.

The operation of the above configuration will be described below.

When an incoming call is received from the public telephone line 2, the incoming call detection section 4 detects the incoming call, and an incoming call detection signal is input to the control section 15. Based on this, the controller 15 activates the controller 16, and
Controls the link switch unit 5 and selects the telephone 3- to which the incoming call will ring.
1, . . . 3-n. Assuming that the telephone 3-1 is the destination for ringing an incoming call, the ring tone from the common sound source section 12 is sent to the telephone 3-1 via the link switch section 5, and the telephone 31 rings for the incoming call. During the day, a person in an office, etc. hears the incoming call ringing from telephone 3-1 and answers the incoming call, but at night, when a call is received from public telephone line 2, no one is around telephone 3-1. If no one is present, the telephone 3-1 remains in the incoming call ringing state. When the timer 16 reaches the set value in this state, a detection signal is sent from the timer 16 to the control section 15.

When the control unit 15 receives the detection signal from the timer 16, it stores in the memory 17 that the incoming ringing destination has been changed during the night setting, and sends the incoming call signal to the telephone that is the night incoming ringing destination, for example, 3-2. and causes the telephone 3-2 to emit an incoming ringing tone. When the telephone 3-2 responds to the incoming call, the control section 15 drives the relay 8 to connect the link switch section 5 to the public telephone line 2 through the contact 8a. and,
As mentioned above, the memory 17 stores that the night setting is in progress, so the next time a call is received at night, the control unit 15 automatically controls the telephone 3 to ring the incoming call set to the night setting. -2 can be sent a ring tone and ring an incoming call.

In this way, according to the above embodiment, in response to an incoming call from the public telephone line 2 at night, the designated telephone 3-1, . . .
If the telephone 3-n does not respond for a certain period of time or more, the timer 16 operates and automatically sets the nighttime setting so that the telephone set to ring the incoming call at night can ring the incoming call.

In this embodiment, it will be more convenient if the night setting is automatically set or the night setting is canceled automatically. That is, if even one of the telephones 53 in the group that rings during the daytime in FIG. No release operation is required.

Effects of the Invention As described above, according to the present invention, when the detection means detects that the specified telephone does not respond to an incoming call from a public telephone line for a certain period of time or more, this detection signal is sent to the control unit. Based on this, the control unit changes the incoming call destination to another telephone and causes the incoming call to ring. By storing this change in the incoming ringing destination in the storage means, the night setting state is automatically established, so that the next time a call is received, the incoming call ring can be automatically set from the telephone set to the night setting. Therefore, even if there is a change in business hours, holidays, etc., the settings need not be changed each time, and convenience can be improved.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram showing a key telephone device according to an embodiment of the present invention, and FIG. 2 is a schematic block diagram showing a conventional key telephone device. 1... Key telephone main device, 2... Public telephone line, 1
,...3-n...telephone, 4...incoming call detection section,...
- Link switch unit, 12... Common sound source unit, 1... Communication interface unit, 15... Control unit, 1... Timer,
17...Memory.

Claims (1)

[Claims] Detection means for detecting the incoming state of a specified telephone in response to an incoming call from a public telephone line, and if the designated telephone does not respond for a certain period of time or more, sends a detection signal to the control unit and changes the incoming call destination to another telephone. and a key telephone device comprising a storage means for storing a change in the ringing destination for incoming calls.