JPH07303268A - Private branch exchange and key telephone system - Google Patents

Abstract

PURPOSE:To provide a private branch exchange and a key telephone system, which can set the presence or absence of the connection of a single telephone set connected to a private exchange device or a main device without changing hardware or software by means of a person who sets it. CONSTITUTION:Call current detection means 5a, 5b-5n or dial detection means 6a, 6b-6n detect call current or dial signals from the respective single telephone units 2a, 2b-2n. When a judge means 10 judges that the single telephone units 2a, 2b-2n are connected, single telephone connection status corresponding to the single telephone set interfaces 4a, 4b-4n of a storage means 11 is changed from 'absence' to 'presence', and the private branch exchange device or the main device 1 operates by the information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a private branch exchange or a key telephone apparatus in which private telephones 2a, 2b to 2n and non-single telephones are connected to a private branch exchange or a main unit 1, and in particular, whether or not a private telephone is connected is installed. The present invention relates to a private branch exchange or a key telephone device that a person automatically determines without setting hardware or software.

[0002]

2. Description of the Related Art Conventionally, single telephones 2a, 2b to 2n or non-single telephones are connected to a private branch exchange or a main telephone apparatus 1 of this type of private branch exchange or button telephone system. In this case, the private branch exchange or the main device 1 has a telephone line and a data line and can exchange information relatively freely with the private branch exchange or the main device 1. You can easily check the connection. On the other hand, in the case of the individual telephones 2a, 2b to 2n, it is usually impossible to exchange information other than the dial signal with the private branch exchange or the main unit 1. Therefore, it is determined whether or not the single telephone is connected. 1 was difficult to recognize. In the case of a non-standalone telephone,
To call an incoming call, the private branch exchange or the main unit 1 need only send the data corresponding to the ringer signal to the corresponding non-single telephone by the data line, but the single telephones 2a, 2b to 2n.
In the case of, the ringer signal is actually created and the communication lines 3a, 3
It is necessary to send from b to 3n to the corresponding individual telephones 2a and 2b to 2n, and at the same time, to send a ringback tone for notifying the calling party that the call is being made. If there is not, it is necessary to send a tone other than the ring back tone to the caller to notify that there is no telephone connection. From this point as well, it is necessary to confirm the presence or absence of the individual telephones 2a, 2b to 2n. It was Therefore, conventionally, the installer has set the presence or absence of connection of the individual telephones 2a, 2b to 2n by changing the hardware or the software. That is, for example, the private branch exchange or the single telephone interfaces 4a, 4b to 4 of the main unit 1
A switch is provided near the connectors of the n communication lines 3a, 3b to 3n or at a place where it is easy to set, so that the presence or absence of the connection can be set, and the installer can change the presence or absence of the connection at the time of installation. Was set by.

[0003]

However, in the case of setting by hardware, if the configurator does not know the setting method, the setting cannot be made, there is a risk that the setting will be incorrect, and there is a disadvantage that the setting takes time. In addition, when changing software, it is usually done by key operation from a terminal device such as a non-single telephone, so workability is poor, operation is complicated and time consuming, and it is necessary to know the setting method. , There is also a risk of setting mistakes.

The present invention has been made in view of the above problems, and an object of the present invention is to provide independent telephones 2a, 2b.
It is an object of the present invention to provide a private branch exchange or a key telephone device that automatically determines the presence or absence of a single telephone connection without the installer setting the presence or absence of the 2n connection by changing the hardware or software.

[0005]

In order to solve the above problems, the present invention provides a private branch exchange and a key telephone system in which a plurality of individual telephones 2a, 2b to 2n are connected to a private branch exchange or a main unit 1. Single telephone interface 4
a. Telephones 2a, 2 corresponding to a, 4b-4n respectively
Storage means 11 for storing "present" and "absent" of connection of b to 2n, and connected individual telephones 2a, 2b to 2n.
Call current detecting means 5 for detecting the call current sent from
a, 5b to 5n and the call current detecting means 5a and 5b to
The presence or absence of a single telephone is automatically detected by the judgment means 10 which changes the contents of the storage means 11 in response to a signal from 5n.

Further, the present invention corresponds to each private telephone interface 4a, 4b-4n in a private branch exchange and a button telephone device in which a plurality of private telephones 2a, 2b-2n are connected to the private branch exchange or the main device 1. "Yes" and "No" for connection of individual telephones 2a, 2b-2n
, A dial detecting means 6a, 6b to 6n for detecting a dial signal sent from the connected single telephone, and the dial detecting means 6a, 6
The individual telephones 2a, 2b by the judging means 10 for changing the contents of the storage means 11 in response to the signals from b through 6n.
The presence or absence of 2n connection is automatically detected.

[0007]

Function: Single telephone interface 4a, 4b to 4n
With respect to, the contents of the single telephone connection status of the storage means 11 indicating the connection states of the single telephones 2a, 2b to 2n are set to "none" indicating the state of no connection as an initial value. The determination means 10 is the call current detection means 5a, 5b to 5 of the individual telephone interface 4a, 4b to 4n.
n, and when a call current satisfying a predetermined condition is detected, the contents of the single telephone connection status indicating the connection state of the single telephone interfaces 4a, 4b to 4n of the storage means 11 are in the state of no connection. Indicates “none”
Is changed to "present" indicating a state of connection, and thereafter, it can be determined that connection is made by referring to this storage means.

The call current detecting means 5a, 5b to 5n are also provided.
Dial detecting means 6 for detecting a dial signal instead of
a, 6b to 6n, the judging means 10 monitors the dial detecting means 6a, 6b to 6n, and when it judges that all or part of the effective dial signal is detected, the independent telephone interface 4a, 4b to. The individual telephone status of the storage means 11 corresponding to 4n is changed from "absent" to "present".
By changing to, it is possible to detect whether or not the individual telephones 2a, 2b to 2n are connected.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the basic configuration of an embodiment of the present invention. Reference numeral 1 in the figure represents a private branch exchange or a main unit in a private branch exchange or a key telephone system. Two
a, 2b to 2n are independent telephones connected to the private branch exchange or the main unit 1, and are DP dial type and DTMF (P
B) There is a dial system. 3a, 3b to 3n are telephone lines of the individual telephones 2a, 2b to 2n, 4a, 4
Reference numerals b to 4n are individual telephone interfaces for connecting the individual telephones 2a and 2b to 2n. 5a, 5b
5n is the detection current of the call current from each individual telephone.
A call current detecting means for detecting via a, 7b to 7n, which is constituted by, for example, a photo coupler or a relay. Reference numeral 10 receives the signals from the call current detecting means 5a, 5b to 5n via the signal lines 8a, 8b to 8n, and the individual telephones 2a, 2
The judgment means for judging the presence or absence of the connection of b to 2n and changing the contents of the storage means 11, for example, the private branch exchange or the main device 1
It is composed of a control CPU and the like. Reference numeral 11 indicates the individual telephone interface 4a, 4 by this judging means 10.
The storage means is capable of setting the connection state of the individual telephones 2a and 2b to 2n as the individual telephone connection status corresponding to b to 4n, and is constituted by a register of the control CPU or a RAM such as a main storage device.

Therefore, the single telephone 2a is connected to the private branch exchange or the main unit 1 by the call line 3a through the single telephone interface 4a and also to the call line in the private branch exchange or the main unit 1 not shown. ing. Further, there is a call current detecting means 5a in the single telephone interface 4a, and the call line 3 is detected by the detection line 7a.
a, and its output is connected to the judging means 10 by the signal line 8a.
Are connected in the same way. Further, the judging means 10
It is connected to the storage means 11.

Next, the operation of the present invention will be described. In the initial state, each individual telephone interface 4a, 4b-
Since the presence or absence of the individual telephones 2a, 2b to 2n connected to the 4n is unknown, all the individual telephone connection statuses of the corresponding storage means 11 are "none". Now, when the single telephone 2a goes off hook and the hook switch is turned on, a call current flows through the call line 3a. And the detection line 7
It is detected by the call current detecting means 5a via a, and the call current detecting means 5a converts it into a predetermined signal, for example, a constant voltage value, and sends it to the judging means 10 via the signal line 8a.
The judging means 10 judges whether or not this signal satisfies a predetermined condition, for example, that the power is supplied for a predetermined time or longer,
If it is satisfied, it is determined that the single telephone 2a is connected, and the corresponding single telephone status in the storage means 11 is changed from "absent" to "present". In this way, the presence / absence of connection of the other single telephones 2b to 2n is also determined.

Next, a second embodiment of the present invention will be described. FIG. 2 is a diagram showing the basic configuration of the second embodiment of the present invention. In the figure, dial detecting means 6a, 6b-6
n is replaced with the call current detecting means 5a, 5b to 5n in FIG. 1, and the other configuration is the same as that in FIG.

Next, the operation will be described. A dial signal (DP dial method or DTMF) is sent from the single telephone 2a.
(Dial method) is transmitted, the communication line 3a, the detection line 7
A dial signal is detected by the dial detecting means 6a via a, and the dial detecting means is composed of a relay, a photocoupler, a DTMF detector IC, or the like, and converts the dial signal into a constant signal to make a judging means. It is sent to 10 via the signal line 8a. The determination means 10 determines that the single telephone 2a is connected at the time when all or some of the valid dial signals are detected, and other operations are the same as in the embodiment of FIG.

[0014]

As described above, according to the present invention, the presence or absence of the connection of the individual telephones 2a, 2b to 2n is automatically detected. Therefore, when the private branch exchange or the key telephone device is installed, the installer No need to set the presence or absence of connection of a single telephone by hardware or software, the installer does not need to know the setting method, there is no fear of setting mistakes, setting time is shortened, work efficiency is improved, and cost is reduced. It also has the effect of reducing the amount.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic configuration of a first embodiment of the present invention.

FIG. 2 is a diagram showing a basic configuration of a second embodiment of the present invention.

[Explanation of symbols]

 1 Private branch exchange or main device 2a, 2b to 2n Single telephone 3a, 3b to 3n Call line 4a, 4b to 4n Single telephone interface 5a, 5b to 5n Call current detecting means 6a, 6b to 6n Dial detecting means 8a, 8b to 8n signal line 10 determination means 11 storage means

Claims (2)

[Claims] 1. In a private branch exchange and a button telephone device in which a plurality of individual telephones (2a, 2b to 2n) are connected to a private branch exchange or a main device (1), each individual telephone interface (4a, 4b to 4n) is respectively. On the other hand, the storage means (11) indicating whether the individual telephones (2a, 2b to 2n) are connected or not, and the connected single telephones (2a, 2a, 2n).
2b to 2n) and a call current detecting means (5a, 5b to 5n) for detecting a call current from the call current detecting means (5a, 5b to 5n).
a, 5b to 5n), the storage means (1
A private branch exchange and a key telephone device for automatically detecting the presence or absence of connection of a single telephone (2a, 2b to 2n) by the judging means (10) for changing the state of 1). 2. A private telephone exchange (4a, 4b-4n) in a private branch exchange and a button telephone device in which a plurality of single telephones (2a, 2b-2n) are connected to a private branch exchange or a main device (1), respectively. On the other hand, the storage means (11) indicating whether the individual telephones (2a, 2b to 2n) are connected or not, and the connected single telephones (2a, 2a, 2n).
2b to 2n) for detecting dial signals from the dial detecting means (6a, 6b to 6n) and the state of the storing means (11) based on the signals from the dial detecting means (6a, 6b to 6n). A private branch exchange and a key telephone device for automatically detecting the presence or absence of connection of a single telephone (2a, 2b to 2n) by a judging means (10) for changing the.