JPH07235986A - Telephone exchange - Google Patents

Abstract

PURPOSE:To make handleability excellent and to eliminate the necessity of providing an extension telephone set with a special key by receiving and detecting the line wire originating call dial number from the extension telephone set and automatically switching to the operation mode corresponding to the number. CONSTITUTION:When a line wire originating call operation is performed from an extension exclusive telephone set 112, the information is transmitted to an extension interface 107 via a line 110. When it is received, the interface 107 transmits a line wire originating call request to a control part 115 via a control bus 117. The control part 115 forms a DC loop for a line wire interface 103 via the control bus 117. When DC is detected, it is notified to the control part 115 via the bus 117. When the control part 115 receives the notification, a speech path switch 105 is controlled via the bus 117, and a speech path 104 and a speech path 106 are connected. Therefore, dial tone comes into the extension exclusive telephone set 112 from a local exchange 101 and an operator performs a dial operation after the dial tone is confirmed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone exchange device which allows an extension telephone to set an operation mode.

[0002]

2. Description of the Related Art Conventionally, there is known a telephone exchange device which is provided with a specific key on an extension telephone, and switches to a specific operation mode by detecting that the key is pressed. .

[0003]

By the way, in the above conventional example, when the operation mode is, for example, the time setting mode, the function of switching to the time setting mode must be assigned to a specific key of the extension telephone.

However, since the time is not set frequently, it is not a good idea to assign such a function to the limited keys of the telephone. Also, whenever it becomes necessary to set or correct the time,
It is necessary to assign the function to a specific key, which is inconvenient and cumbersome.

It is an object of the present invention to provide a telephone exchange device capable of setting an operation mode without providing a specific key on an extension telephone.

[0006]

According to the present invention, a storage means for storing a specific outside line dialing number and an operation mode associated therewith in advance, and reception detection for detecting an outside line dialing number from an arbitrary extension telephone. When the means and the operation mode corresponding to the received calling number are detected,
A control means for switching the extension telephone to the operation mode is provided, and the operation mode can be automatically switched to a desired operation mode when an outside line transmission operation is performed.

[0007]

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

The main unit 10 of the telephone exchange system of this embodiment
0 indicates a central office switch 1 such as NTT via the outside line 102.
01, and the extension lines 110 and 1
An extension telephone 112 that can display the time via 11
Accommodates 113. In addition, in this figure, one external line and two internal lines
Although an example of a book is shown, the same operation can be performed in a system accommodating a plurality of lines each having two or more lines.

The main device 100 is composed of the following elements. The outside line interface 103 accommodates an outside line from the central office switch 101, and has a communication path 104.
Is connected to the communication path switch 105 via. The extension interface 107 connects the extension telephone 112 to the line 1
It is accommodated via the communication path 10 and is connected to the communication path switch 105 via the communication path 106. Similarly, the extension interface 109 accommodates the extension telephone 113, and is connected to the call path switch 105 via the call path 108.

The just-time detection unit 114 is a just-time sound indicating "just" in the time signal (notifying the "just" of the NTT time service.
"Sound" of "P", and is connected to the communication path 105 via the communication path 118. The clock unit 116 measures time, and is connected to the control unit 115 that controls the entire system via a control bus 117.

Further, the control unit 115 has a control bus 117.
The external line interface 103, the internal line interfaces 107 and 109, and the just time detection unit 1 via the
14 are connected to each. In addition, in the storage unit 119,
The time setting mode is stored in association with the dial number "117".

FIG. 2 is a flow chart showing the internal operation of the telephone exchange apparatus when the time is set from the extension telephone in this embodiment.

The time setting operation will be described below with reference to FIGS. 1 and 2.

Here, the time is set from the extension telephone 112 that can display the time. First, the extension telephone 1
When an outside line transmission operation is performed from 12, the information is transmitted to the extension line interface 107 via the line 110. Upon receiving it, the extension interface 107 sends an outside call request to the control unit 115 via the control bus 117 (S200).

As a result, the control unit 115 is controlled by the control bus 11
A command is issued to the outside line interface 103 via 7 to capture the outside line. Outside line interface 10
In accordance with this command, the third circuit 3 forms a direct current loop on the external line 102, and when it detects a direct current, it notifies the control unit 115 via the control bus 117.

Upon receiving the notification, the control unit 115 controls the communication path switch 105 via the control bus 117,
The call path 104 and the call path 106 are connected. Thereby,
The dial tone arrives at the extension telephone 112 from the central office 101, and after the operator confirms the dial tone,
Operate the dial.

Here, in order to hear the time signal, the operator dials, for example, "117" of NTT time service. On the other hand, the control unit 115 receives the dial information via the extension interface 107 (S20
1) When the content of the dial information is detected (S20)
2) A command to set the extension telephone 112 to the time setting mode is notified via the extension interface via the control bus 117 (S204).

At that time, the control unit 115 reads out the current time of the clock unit 116 and takes the extension telephone 112 by the same route.
To notify. The present time read out from the clock unit 116 is displayed on the display of the extension telephone 112 in the time setting mode. Then, the operator can hear the voice of the time service of the central office 101 from the handset when the handset is in the talking state and from the speaker when the speaker is in the listening state.

Further, the control unit 115 controls the call path switch 105, connects the call path 104 and the call path 118, and feeds the voice of the time service from the central office 101 to the just time detecting section 114. Just time detector 1
Reference numeral 14 is for detecting a just time signal included in the voice of the time service, for example, 1000 Hz which is just notified in the voice signal of the time service of NTT.
Signal is included, but only that signal is extracted and detected.

Here, the operator sets the time while listening to the voice of the time service. For example, "10
I will tell you the exact time "
The operator sets the display of the time on the display at 10:00 by pressing the dial key. The set time information is notified to the control unit 115 via the extension interface 107.

After that, a signal indicating just the time service sound arrives, and the signal is detected by the just time detection unit 114. Then, this signal is detected (S
205), when it is transmitted to the control unit 115 via the control bus 117, the time information set by the extension telephone 112 is set in the clock unit 116 (S206).

As a result, the time adjustment is completed. After that, when the operator confirms that the time has been set correctly in the time setting mode state, the key indicating the end of setting (for example, the data setting key is diverted) is pressed to return from the setting mode to the outside line call state. (S20
7).

Then, when the operator is on-hook (S2
08), the control unit 115 detects it, and
The call path 106 and the call path 104 and the call path 118 are disconnected. At the same time, when the external line interface 103 is instructed to open the line, the external line interface 103 opens the DC loop and returns to the standby state.

In the above description, by pressing the key indicating the end of setting, the recovery from the setting mode and the line opening operation by the on-hook operation are separated, but these operations can be performed simultaneously. For example, by pressing the setting end key, recovery from the setting mode and opening of the line are performed at the same time. Alternatively, an on-hook operation is performed to simultaneously recover from the setting mode and release the line.

Further, when the recovery from the setting mode and the opening of the line are performed in two steps, and if there is an error in the time setting, the time is set again by pressing the setting key while the line is captured. You can return to mode.

In addition, the above-mentioned dial number "117"
No. and time setting mode are associated with each other.
It is also possible to perform a setting operation from 12 and register it in the storage unit 119. For this operation, for example, a predetermined special number operation is performed to select a process for registering the association, and then a specific code indicating the time setting mode is input, and then the dial number “117” is input.

In the above embodiment, the time setting mode has been described, but other operations can be similarly applied.

[0028]

As described above, according to the present invention,
Detects the external dialing number from the extension phone,
By automatically switching to the operation mode corresponding to the number, there is an effect that it is easy to use and there is no need to provide a special key on the extension telephone, and an economical telephone exchange apparatus can be provided.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing the operation of the above embodiment.

[Explanation of symbols]

 100 ... Main device, 101 ... Central office switch, 102 ... Outer line, 103 ... Outer line interface, 104, 106, 108, 118 ... Call path, 105 ... Call path switch, 107, 109 ... Extension interface, 110, 111 ... Line, 112 , 113 ... Extension dedicated telephone, 114 ... Just time detecting section, 115 ... Control section, 116 ... Clock section, 117 ... Control bus, 119 ... Storage section.

Claims (1)

[Claims] 1. A storage means for storing a specific outside line outgoing dial number and an operation mode associated therewith in advance, a reception detecting means for receiving and detecting an outside line outgoing dial number from an arbitrary extension telephone, and the received outgoing number. And a control means for switching the extension telephone to the operation mode when the operation mode corresponding to is detected.