JPH06101863B2 - Private branch exchange - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention requires input of a special number for capturing an office line when an emergency telephone number is called from an extension telephone. There is no private branch exchange.

(Prior Art) A conventional private telephone exchange system is, for example, as shown in FIG. As shown in the figure, in the private telephone exchange system, the extension circuit 3-a, ..., 3-
m, subscriber circuits 4-a, ..., 4-m, leased line circuits 6-a ,.
-M is connected. Extension telephones 2-a, ..., 2-m are connected to the extension circuits 3-a, ..., 3-m. Subscriber circuit 4-a,
, 4-m are connected to station lines 5-a, ..., 5-m, and dedicated line circuits 6-a, ..., 6-m are connected to dedicated lines 7-a, ..., 7-m. It Further, the control unit 8 is connected to the exchange circuit 1 and the control unit 8
The storage unit 9, the maintenance terminal 10, and the dial reception unit transmission unit 11 are connected to the. The part surrounded by a dotted line in the figure is a private branch exchange A.

In such a telephone exchange system, extension telephones 2-a, ..., 2
-M extension calls are made and extension telephones 2-a, ..., 2
-M to station lines 5-a, ..., 5-m or leased lines 7-a, ..., 7-
It is possible to talk with a telephone outside the building via m. To make a call with a telephone outside the campus, dial the special number of the office or leased line to be captured, and then dial the telephone number of the other party.

FIG. 4 is a flow chart showing the operation at this time, and when the extension telephone (for example, 2-a) dials a special number for capturing an office line or a leased line (step 401),
The control unit 8 checks whether there is a vacancy in the office line or the leased line (step 402), and if there is no vacancy, sends a busy tone to the extension telephone set 2-a (step 403). If there is a vacancy, the control unit 8 captures an office line or a dedicated line and the extension telephone 2-a
A dial tone is sent to (step 404). The caller who confirms the dial tone dials the telephone number of the other party from the extension telephone 2-a, and the control unit 8 analyzes this dial signal and sends it to the station or the leased line (step 405).

(Problems to be solved by the invention) As described above, in the conventional private telephone exchange system, when a call is made from an extension telephone to an off-premise telephone via a station line or a leased line, the special number of the station line or the leased line must be entered. It is necessary to dial the other party's telephone number after that, and when dialing the emergency telephone number in the event of an emergency (for example, in the event of a fire), you must enter the special number of the station line or leased line. However, there was a problem that communication with the outside could not be performed if the special number was not remembered. The present invention has been made in view of the above problems, and an object of the present invention is to provide a private branch exchange in which it is not necessary to enter a special number of an office line or a dedicated line when dialing an emergency telephone number. is there.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention has at least one extension telephone, and the dial number sent from the extension telephone includes a line capture special number. In the private branch exchange that captures the line corresponding to the line capture special number, a first memory that stores at least one emergency telephone number and a line for capturing the line corresponding to the emergency telephone number The second memory for storing the special acquisition number, the receiving means for receiving the dial number sent from the extension telephone, the dial number received by the receiving means and the emergency telephone number in the first memory match. In this case, the line capturing means for capturing the line based on the line capturing special number of the second memory and the dial signal corresponding to the emergency telephone number are transmitted to the line after capturing the line. Characterized by comprising a control means.

(Operation) When the dial number sent from the extension telephone matches the emergency telephone number stored in the first memory, after the line is captured based on the line capture special number stored in the second memory, the emergency is executed. The dial signal corresponding to the telephone number is sent to the line.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings. The configuration of the private branch exchange system in this embodiment is the same as that shown in FIG. 3, but the following table is stored in the storage unit 9 and the control unit 8 performs processing while searching the storage unit 9. .

FIG. 1 shows a table stored in the storage section 9.
It has a general extension telephone number registration table 102, an emergency telephone number registration table 103, and an emergency telephone number-corresponding acquisition station line group registration table 103. The special numbers for catching station lines and leased lines are registered in the station line dedicated line capturing special number table 101. General extension numbers are registered in the general extension telephone number registration table 102. An emergency telephone number (for example, "110" or "119") is registered in the emergency telephone number registration table 103. In the emergency telephone number-corresponding capturing station line group registration table 104, the line capture special number to be captured when transmitting the emergency telephone number registered in the emergency telephone number registration table 103 is registered. The registration of such numbers is performed by the maintenance terminal 10.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG.

For example, when a dial signal is sent from the extension telephone 2-a, the dial receiving unit transmitting unit 11 receives the dial signal (step 201). The control unit 8 searches whether or not this dial signal is in the office line leased line acquisition table 101 (step 202), and if there is, performs the conventional station line leased line processing (step 203). If there is no corresponding number in the leased line special number registration table 101, the control unit 8 searches the general extension telephone number registration table 102 (step 20).
Four). If there is a corresponding number, conventional extension processing is performed (step 205). If there is no corresponding number, the control unit 8 searches the emergency telephone number registration table 103 (step 206). If there is no corresponding number, there is no telephone to be connected, so the control unit 8 sends a connection restriction sound to the extension telephone 2-a (step 207). When there is a corresponding telephone number in the emergency telephone number registration table 103, the control unit 8 searches the emergency telephone number-corresponding acquisition station line group registration table 104 and determines whether or not there is a vacancy in the corresponding station line group. (Step 208). If there is no free space, the control unit 8 sends a busy tone to the extension telephone 2-a (step 20).
9). If there is a vacancy, the station line is captured and the pre-bose timer is set (step 210). The control unit 8 monitors the time-out of the timer, and at the time of the time-out, sends the dial information sent from the extension telephone set 2-a to the office line. This dial information is already stored in the storage unit 9, and the stored information is sent to the central office line (step 211).

As described above, in the present embodiment, when an emergency telephone number is dialed from the extension telephone in the event of an emergency, the control unit 8 searches the table in the storage unit 9 and the emergency telephone number registration table 103
If there is an emergency telephone number corresponding to, the extension telephone is connected to a predetermined office line, so that it is not necessary to enter a special number.

[Effects of the Invention] As described in detail above, according to the present invention, when dialing an emergency telephone number, it is not necessary to enter a special number for an office line or a leased line, so an emergency telephone can be used even if the special number is not remembered. The number can be dialed and emergency situations can be dealt with quickly.

[Brief description of drawings]

FIG. 1 shows a table stored in the storage unit 9, and FIG.
FIG. 3 is a flow chart showing the operation of this embodiment, FIG. 3 is a block diagram of the private branch exchange system, and FIG. 4 is a flow chart showing the general operation of the private branch exchange system. 101 …… Registration line dedicated special line acquisition special number registration table, 102 …… General extension phone number registration table, 103 …… Emergency phone number registration table, 104 …… Emergency phone number correspondence acquisition station line group registration table.

Claims (1)

[Claims] 1. A private branch exchange having at least one extension telephone, and when a dial number sent from the extension telephone includes a line capture special number, at least a private branch exchange that captures a line corresponding to the line capture special number, A first memory for storing an emergency telephone number of 1; a second memory for storing a line capture special number for capturing a line corresponding to the emergency telephone number; and a dial number sent from the extension telephone When the dial number received by the receiving unit and the emergency telephone number of the first memory match, the line capturing for capturing the line based on the line capturing special number of the second memory A private branch exchange comprising: means and a control means for sending a dial signal corresponding to the emergency telephone number to the line after the line is captured.