JPH05160913A - Telephone system - Google Patents

Abstract

PURPOSE:To realize a conference speaking state with simple operations. CONSTITUTION:This system is provided telephone sets 1-1 to 1-n equipped with conference state requesting means 101 for requesting conference states with at least two opposite side telephone sets and dial input means 102 used for dial inputs, calling means 103 for calling the corresponding opposite side telephone sets together based on the requests due to the conference state requesting means 101 of the telephone sets 1-1 to 1-n and dial information inputted from the dial input means 102, and conference control means 104 for controlling the conference speaking state between the opposite side telephone set called by the calling means 103 and the telephone set requesting the conference state based on the state of the relevant opposite side telephone set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a private branch exchange (PB).
X) and key telephone devices.

[0002]

2. Description of the Related Art In a conventional PBX, the following operations have been performed to realize a conference state.
In other words, after making a call state with the first party, transitioning this call state to the hold state, making a call to the second party to realize the call state, and then holding with the first party. It is to restore the state.

[0003]

However, according to the above PBX, there is a problem that the procedure for reaching the conference state is complicated and the operation is difficult for a person who is particularly unfamiliar. The present invention has been made in view of the above problems of the telephone device, and an object thereof is to provide a telephone device which can realize a conference state by an easy-to-understand operation.

[0004]

According to the present invention, there is provided a telephone having a conference status requesting means for requesting a conference status with at least two partner telephones, and a dial inputting means used for dial input.

Based on the request from the conference status requesting means of the telephone and the dial information inputted from the dial inputting means, the calling means for calling the corresponding destination telephone together and the state of the destination telephone called by the calling means are set. And a conference control means for controlling the conference call state between the telephone and the telephone requesting the conference state based on the conference call.

[0006]

According to the above structure, a call is made to the other party and the conference state is realized only by inputting the conference request and the dial of the other party involved in the conference.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention. The extension telephones 1-1 to 1-n are equipped with a conference status requesting means 101 for requesting a conference status and a dial input means 102 used for dial input. The calling means 103 receives the request from the conference status request means 101 and the dial information related to the dial input from the dial input means 102, and calls the corresponding extension telephones. In response to this calling operation, the conference control means 104 detects the states of the extension telephones 1-1 to 1-n of the other party and controls the conference. That is, if all the other extension telephones are busy, a busy tone is returned to the extension telephones that requested the conference, and if some of the other extension telephones are busy, calling the other extension telephones in the ready state and the other extension telephones in the busy state. Wait for the phone to recover and call them all at the same time if they are all ready. When there is a response, the call paths are connected one after another to form a conference call state, and when the busy state is restored, a call is made. The speech path is formed by the speech path section 105.

FIG. 2 shows a PBX system according to an embodiment. The extension telephones 1-1 to 1-n are connected to the line circuits 2-1 to 2-n, and the station lines 3-1 to 3-m
Are connected to the trunk circuits 4-1 to 4-m. The switch circuit 5 is controlled by the central control circuit 7, and the line circuit 2-
1 to 2-n, or line circuits 2-1 to 2-n
And a communication path is formed between the central office and the central office lines 3-1 to 3-m. The central control circuit 7 centrally controls each unit based on the program and data in the memory 8. Then, it receives data from each unit and sends data and commands to each unit. More specifically, the central control circuit 7 uses the programs shown in FIGS. 3 and 5 and the memory table shown in FIG. On the other hand, the extension telephone 1-1
.. 1-n have the same structure, and are represented by FIG.
A plan view of the extension telephone set 1-1 is shown in FIG. A handset 11 is placed on a hook mechanism 12 extending leftward from the main body housing 16. On the other hand, on the upper surface of the main body housing 16, for example, a display unit 15 made of an LCD is provided. Display
A dial key 13 is provided below 15 and various function keys 14 are provided below and on the right side thereof. As the function key 14, for example, the transfer hold key 14
It includes an a, an extension DN key 14c, and a multi-call key 14d. The multi-transmission key (MDN) 14d is a key for requesting the conference status.

Generally speaking, a conference call can be made by three or more parties, but here, for the sake of simplicity, description will be given assuming that only a three-party conference state is realized. In the memory 8, an area in which the operating state (ready / busy) of each extension (extension telephone) is stored and a conference-related area 2
4 has a built-in memory table as shown in FIG. 4 in which an area for storing the extension number of the other party's extension telephone is provided.

In such a PBX, the central control circuit 7 operates based on the program of the flow chart shown in FIGS. 3 and 5 in the memory 8, which will be described. The system is started, the program in the flowchart of FIG. 3 is started, and the central control circuit 7 detects an off-hook (301) and further detects an operation of the multi-transmission key (MDN) 14d (302). If another key operation is performed here, the process proceeds to another process, and the multi-transmission key (MDN) 14d
If the operation is performed, the dial information input using the dial key 13 is fetched (303). Whether there is an error in the dial information fetched here is detected by, for example, detecting a number of digits greater than a predetermined number (304). In case of error, an alarm is issued and the process returns to step 303. On the other hand, if there is no error, it is checked whether or not the multi-transmission key (MDN) 14d has been operated again (306). If the re-operation is not performed here and the number data of the other party's telephone is input, the process returns to step 303 and the operation is continued. Thus, when the necessary dial input to the other party's telephone is completed, the number data of the other party's extension telephone is stored in the corresponding area of the memory table of FIG. Then, the multi-transmission key (MDN) 14d is operated again (306), and the central control circuit 7 responds to the operation again by at least one of the extension telephones corresponding to the dial information stored above.
Is detected based on the memory table of FIG. 4 (307). Here, if there is no partner telephone set in the ready state, a busy tone is returned to the calling side telephone set and the process ends (308). On the other hand, if there is a partner telephone in the ready state, a call signal is sent to the corresponding extension telephone to make a call, and the dial information of the busy extension telephone is stored in the wait queue register (309). , Start the response monitoring task (310). Further, the central control circuit 7 monitors whether the partner extension telephone of the waiting queue register is in the ready state based on the memory table of FIG. 4 (311). Note that the state of each extension telephone is monitored by another task and stored in the memory table. When a partner extension telephone set in the ready state appears, the corresponding extension telephone is called and the answer monitoring task is notified of the extension telephone number related to the call (312). Next, the central control circuit 7 detects whether there is any other extension telephone that is to be in a conference state and remains busy (313). Here, if there is a remaining portion, the process returns to step 311 to continue the operation, and if there is no remaining portion, the process ends.

FIG. 5 shows the operation of the response monitoring task. When it is started by activation, the response of the extension telephone of the other party regarding the call is detected (501), and every time there is a response, a connection is established through the switch circuit 5 so that a conference is possible (502). ), It is detected whether there is any remaining extension telephone that is being called (503), and if there is any, it returns to step 501 to continue the operation, and if there is no remaining, it ends. When the notification is given in step 312 of FIG. 3, response monitoring for the notification is performed. In this way, in this embodiment, basically, by simply inputting the dial information of the other party's telephone, both parties can be called together (substantially at the same time), and the response forms a conference call path. It In addition, recovery from the conference state,
It goes without saying that this is done by the on-hook of each telephone. Further, the conference state may be set including the office line.

[0012]

As described above, according to the present invention, it is possible to enter a conference call by a simple and easy operation.
It is convenient.

[Brief description of drawings]

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

FIG. 2 is a block diagram of a PBX system that is an embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 4 is a diagram showing a memory table used in a main part of one embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 6 is a plan view of an essential part of an embodiment of the present invention.

[Explanation of symbols]

1-1 to 1-n Extension telephone 13 Dial key 14 Function key 14a Hold transfer key 14c Extension DN key 15 Display 5 Switch circuit 6 Bus 7 Central control circuit 8 Memory 101 ₁ to 101 _n Conference state requesting means 102 ₁ to 102 _n
Dial input means 103 Calling means 104 Conference control means 105 Call path

Claims (1)

[Claims] 1. A telephone having a conference status requesting means for requesting a conference status with at least two partner telephones, a dial input means used for dial input, a request by the conference status requesting means of the telephone and the dial. Based on the dial information input from the input means,
And a conference control unit for controlling the conference call state between the telephone that requested the conference state and the telephone that requested the conference state based on the state of the other telephone called by the calling unit. Characteristic telephone device.