JPH04180394A - Private branch exchange device - Google Patents

Abstract

PURPOSE:To improve business efficiency by exchanging and connecting the corresponding telephone set to an external line with the off-hook of a telephone set and releasing the exchange connection with the external line at the time of hooking the telephone set before dial operation. CONSTITUTION:After the off-hook of a telephone set 1 or the like, the telephone set 1 is connected through an exchange connection part 2 to an external line 3. At this point, the connection with the external line is released when hooking the telephone set 1, switched to the exchange connection with an extension telephone set to become an extension telephone number waiting state. The signal by the dial operation of the telephone set 1 or the like is detected by a dial signal detection part 5 so as to be exchanged and connected to the extension telephone set with the corresponding number through an exchange connection part 2.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a private telephone switching system for connecting telephones and the like, and more particularly, to a private telephone switching system which disconnects the telephone from a telephone line by hooking an extension telephone and enables exchange connection to the extension telephone.

[Conventional technology]

In-house telephone exchange I! In a device that connects multiple telephones via a PBX (PBX), to connect the telephone to a telephone line (outside line), the telephone goes off-hook, calls the PBX, and then uses a specific For example, if you have to dial a number, ``0,'' and the number of calls made through an outside line is greater than the number of calls between telephones, you will end up dialing ``0'' most of the time when using the telephone, which is cumbersome. . In such a case, when the telephone goes off-hook, the telephone is already connected to an outside line and dialing can be made immediately. Rather, it is more convenient to perform a specific operation to switch when talking to an extension telephone.

[Problem to be solved by the invention]

The present invention has been made in view of the above points. When the telephone is off-hook, the telephone is exchange-connected to the outside line and dialing can be made immediately. When the telephone is hooked, the exchange connection with the outside line is canceled and the extension is connected. It provides a PBX that can be connected to telephones via exchange.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a PBX that performs exchange connection between a telephone line and a plurality of extension telephones. A PBX comprising an exchange connection section that releases the exchange connection with the telephone line and exchange connection to the extension telephone based on a dial signal, and a control section that controls the hook detection section and the exchange connection section.
It provides equipment.

[Effect]

With the configuration described above, in the PBXaX according to the present invention, the PBX connects the telephone to an outside line by switching when the telephone is off-hook, and when the telephone is hooked before dialing, the PBX connects the telephone to the outside line by connecting the telephone to the outside line. , and an exchange connection is made to the extension telephone based on the dial signal.

【Example】

Embodiments of the PBX apparatus according to the present invention will be described in detail below based on the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a PBX apparatus according to the present invention. In FIG. 0, 1 and 1' are telephones;
Multiple units are installed. 2 is the exchange connection part, telephone 1
Alternatively, the telephone 1' etc. can be exchange-connected to the outside line 3, or the telephone 1 and the telephone 1' can be exchange-connected to each other, and extension telephones such as the telephone 1 and 1' can be exchange-connected. 4 is a hook detection section which detects hooking of the telephone Ill, etc. 5 is a dial signal detection unit that detects when a dial operation is performed on the telephone 1 or the like. 6 is a control unit that controls each part of the device. Next, the operation of the PBX apparatus according to the present invention will be explained based on the flowchart shown in FIG. When making a call through an outside line from telephone 41111 or telephone 1', etc., first,
Off-hook the telephone 1 etc. (from step 11 onwards, ST
By this off-hook, the telephone 4111 is connected to the outside line 3 via the switching connection 2 (Si2). At this time, if the telephone III is hooked (Si2: Ye
s) The connection with the outside line is canceled, switching to an exchange connection with the extension telephone, and waiting for the extension telephone number (Si4), and the dial signal detection unit 5 detects a signal caused by dialing the telephone Ill, etc., An exchange connection is made to the extension telephone of the corresponding number via the exchange connection section 2 (Si2), and a conversation is made with the extension telephone (Si2). At the end of the call, the telephone 1 etc. is turned on-hook (ST?), thereby canceling the exchange connection with the extension telephone (ST?) and returning to the STI. Furthermore, if a dialing operation is performed without performing a hooking operation on the telephone 1, etc. (Si2: No) in ST3 (Si9: Yes), a dialing signal is sent to the outside line 3 via the switching connection section 2 (STIO), It becomes possible to make a call through an outside line (STII), and if you end the call and put the telephone Ill on-hook (ST12),
The connection with 13 is canceled (5-12), and the STI returns to the above-mentioned STI.

【Effect of the invention】

As explained above, according to the PBX device according to the present invention, when the telephone is taken off-hook, it is possible to connect to an out-of-county line without dialing a specific number such as "0", and a quick hook-up is required before dialing. Since the connection to the outside line is canceled and the connection is exchanged to the extension telephone by the required dialing operation, it is convenient for installation in a small office, etc., where calls are made frequently through the outside line. Yes, it is possible to measure the improvement of office efficiency.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a main part of an embodiment of a private branch telephone exchange according to the present invention, and FIG. 2 is a flowchart for explaining the operation of the private branch telephone exchange. In the figure, 1 and 1' are extension telephones, 2 is an exchange connection, and 4
5 is a hook detection section, 5 is a dial signal detection section, and 6 is a control section. Patent applicant: Fujitsu General Ltd. Figure 1 Figure 2

Claims (1)

[Claims] In a telephone exchange that connects a telephone line and a plurality of telephone extension telephones, there is a hook detection section that detects hooking of an extension telephone, and a hook detection section that releases the exchange connection of the extension telephone with the telephone line based on the detection of hooking by the hook detection section. 1. A private telephone switching device comprising: an exchange connection section that exchanges connection to an extension telephone based on a dial signal; and a control section that controls the hook detection section and the exchange connection section.