Communication method, command and control device, and control program

Abstract

To provide a command control device that can continue a call even if a failure or the like occurs during the call.SOLUTION: A command control device includes a call information communication unit that, when itself is an operating rack, receives call information of another communication party from a communication network and notifies another command control device that is a standby rack of the call information, and an operation switching unit that performs processing to switch from the operating rack to the standby rack when itself switches to the standby rack during a call of a command terminal.SELECTED DRAWING: Figure 1

Claims

1. A communication method in a system comprising at least a command terminal and a plurality of command control devices, The command terminal registers its terminal information with the first command control device, which is an operational unit, and the second command control device, which is a standby unit. The first command control device receives call information of the caller from the communication network and notifies the second command control device of the call information without going through the command terminal, The second command control device holds the notified call information, If, during a call on the command terminal, the first command control device switches to standby mode and the second command control device switches to operational mode, the second command control device continues the call on the command terminal using the retained call information, How to call.

2. The aforementioned communication method further, The command terminal includes, when it receives a notification message from the second command control device indicating that the operational status is operational, sending a connection destination switching message to the second command control device. The communication method described in claim 1.

3. The aforementioned call information includes at least the telephone number or IP address of the call recipient, the port number, and media information. The communication method according to claim 1 or 2.

4. A registration means that receives terminal information from a command terminal and registers said terminal information, When it is the operational unit, it receives call information of the caller from the communication network and notifies another command control device, which is the standby unit, of the call information communication means, without going through the command terminal, The command terminal includes an operational switching means that performs a process to switch from the operational position to the standby position when it switches to the standby position during a call, When it is in standby mode, the call information communication means receives the call information of the call partner from another command control device which is in operational mode. The system further comprises a holding means for holding the received call information, If the command terminal switches to the operational position while a call is in progress, the operational switching means shall, before performing the process of switching from the standby position to the operational position, continue the call of the command terminal using the call information held in the holding means. Command and control device.

5. The operation switching means, upon receiving a connection destination switching message from the command terminal, performs a process to switch from the standby rack to the operational rack. The command control device according to claim 4.

6. The aforementioned call information includes at least the telephone number or IP address of the call recipient, the port number, and media information. The command control device according to claim 4 or 5.

7. A control program for operating a computer as a command and control device as described in claim 4, the control program for causing the computer to function as each of the means described above.

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