JPH04172743A - Interrupt connection system during busy state - Google Patents

Abstract

PURPOSE:To attain interrupt connection to plural lines by detecting an incoming call to inform it to a controller and holding the incoming call of a telephone set in first reply when a reply signal from the telephone set is detected to connect the above line. CONSTITUTION:When the arrival of a new incoming call is detected by a notice from an incoming call detector 1, a 2nd incoming call signal is sent from a signal transmitter-receiver 5 to one or plural telephone sets during holding. Then whether a telephone set in first reply with the 2nd incoming call signal is busy or in holding is discriminated, and when busy, the connected call is in holding. Then a channel 2 is operated and a newly arrived line is connected to the telephone set in first reply.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to switching processing for incoming calls when all representative incoming lines are busy or on hold, and particularly relates to busy interrupt connections.

[Conventional technology]

If all representative incoming calls are busy or on hold, subsequent incoming calls will not be connected unless you try again. In order to solve this problem, conventionally, the number of incoming lines is set to be greater than the number of telephones that can accept calls at the same time, and when all the telephones are busy or on hold, the incoming line is temporarily put on hold. Reception 1 - A method has been used in which the telephone is connected to a key device, etc., and the connection is switched when a telephone becomes available (Prior Art 1).

Furthermore, as a conventional method for functioning on a single line, a so-called interrupt connection (call waiting) has been implemented (Prior Art 2).

[Invention or problem to be solved]

However, the prior art 1 had the disadvantage that when connected to a standby reception talkie device, the telephone would not be connected unless one waited until at least one telephone became available.

Furthermore, since Prior Art 2 functions for a single line, even when implemented in combination with a representative incoming call line, there is a drawback in that only one line is capable of interrupt connection.

An object of the present invention is to solve the deficiencies of the prior art as described above, to connect another line without waiting for the line being accepted by the telephone to be disconnected, and to connect multiple lines (interrupt connection to two lines). The purpose of the present invention is to provide a busy interrupt connection method.

[Means to solve the problem]

In order to achieve the above object, the present invention includes an incoming call detection device that detects an incoming call to a communication path, one or more telephones, a state detection device that detects whether each of the telephones is free, busy, or on hold. A switching system comprising a signal transmitting/receiving device that transmits a second incoming signal to each telephone and detects a response to the second incoming signal from each telephone, and a control device (= in which the control device is in the state The state of each of the telephones is detected through the detection device, and when it is detected that all the telephones are busy or on hold, the incoming call detection device detects an incoming call to the line and notifies the control device. Then, if there is a telephone with an incoming call on hold, the control device selects one or more telephones on hold and causes the signal transmitting/receiving device to transmit a second incoming signal, and the signal transmitting/receiving device When detecting a response signal from a telephone and notifying the control device, the control device connects the line to the first telephone that answered, and if there is no telephone with an incoming call on hold, the control device connects all telephones. When the signal transmitting/receiving device sends out a second incoming signal, and the signal transmitting/receiving device detects a response signal from the telephone and notifies the control device, the control device puts the incoming call of the telephone that responded first on hold and disconnects the line. It is characterized by connection.

[Effect]

In the present invention, when the control device detects the state of each telephone through the state detection device and detects that all the telephones are busy or on hold, the incoming call detection device detects an incoming call to the line. and notifies the control device.
If there is a telephone with an incoming call on hold, the control device selects the telephone or multiple telephones on hold, causes the signal transmitting/receiving device to send out a second incoming signal, and then transmits the second incoming signal from the signal transmitting/receiving device or the telephone. When a response signal is detected and notified to the control device, the control device connects the line to the telephone that answered first, and if there is no telephone with an incoming call on hold,
The control device causes all telephones to send a second incoming signal from the signal transmitting/receiving device, and when the signal transmitting/receiving device detects a response signal from the telephone and notifies the control device, the control device transmits the incoming call of the telephone that answered first. By placing the call on hold and connecting the line, the conventional technology allows you to connect to another line without waiting for the line being accepted by the telephone to be disconnected, and also enables interrupt connections to be made to multiple lines. are different. Examples will be described below based on the drawings.

〔Example〕

FIG. 1 is a block diagram of an exchange system showing an embodiment of the present invention. In the figure, 1 is an incoming call detection device, 2 is a communication path, 3 is a telephone, 4 is a state detection device, 5 is a signal transmitting/receiving device, and 6 is a control device.

The incoming call detection device 1 has the function of detecting an incoming call to the incoming line and notifies the control device 6, the communication path 2 has the function of connecting the incoming line and the telephone 3, and the telephone 3 responds to the incoming call. The status detection device 4 has a function of detecting the status of each telephone 3, such as whether it is available or unavailable, busy, on hold, or free, and notifying the control device 6. indicates that a new call has arrived while all available telephones are busy or on hold.
A function to send out a second value attached signal such as a sound or a flashing lamp to notify the user, and a function to detect a response signal such as a hooking signal from the telephone 3 to the second value attached and notify it to the control device 6. The control device 6 has a function of controlling the call path 2 and the signal transmitting/receiving device 5 based on notifications from the incoming call detecting device 1, the status detecting device f, 4, and the signal transmitting/receiving device 5.

FIG. 2 is an embodiment of the present invention, and is a diagram showing the operation procedure of the control device 6 when it is detected that all telephones are busy or on hold when the present invention is implemented.

B1 detects that a new call has arrived based on a notification from the call detection device l.

In B2, based on the notification from the status detection device 4, it is determined whether there is a telephone on hold.

In B3, if there is no telephone on hold, the signal transmitting/receiving device 5 sends out a second call value to all telephones that are busy.

B4, if there is a telephone on hold, the signal transmitting/receiving device 5 sends a second signal to one or more telephones on hold.
Sends a price tag.

At B5, based on the notification from the signal transmitting/receiving device 5, it is determined whether there is a telephone that has responded to the second price tag.

At B6, the transmission of the second price tag from the signal transmitting/receiving device 5 is stopped.

At B7, it is determined whether the telephone that first responded to the second call number is busy or on hold.

B8 puts the connected call on hold if it is busy.

B9 then operates call path 2 to connect the newly received line to the telephone that answered first.

BIO monitors whether the caller of a newly received line is disconnected.

Bll releases the communication path for the newly received line.

At B12, based on the notification from the status detection device 4, it is determined whether or not there is a telephone that has changed from being on hold to being busy or from being busy to being on hold during the sending of the second bid number.

In B13, if there is a telephone that has changed from on hold to busy or from busy to on hold, the transmission of the second bid number from the signal transmitting/receiving device 5 is temporarily stopped, and the processing from B2 is repeated.

At B14, based on the notification from the status detection device 4, it is determined whether or not there is a telephone that has transitioned from busy or on hold to idle while the second priced number is being sent.

At B10, if there is a telephone that has changed from busy or on hold to idle, the transmission of the second quoting number from the signal transmitting/receiving device 5 is stopped, and normal exchange processing is resumed.

At B16, disconnection of the caller while the second bid number is being sent is monitored.

The present invention can be implemented either a) as a function of a PBX or business phone main device, or b) as a function of a network exchange.

In the case of a), the control signals between the PBX or business phone main device and the telephone are used to determine whether the telephone is busy or on hold, detect the response operation of the telephone, send the second call number, and send the response signal. All you have to do is receive it. In the case of b), in order to selectively send a second call signal to a telephone on hold, an analog network is implemented by adding a device to determine whether the telephone is busy or on hold. Alternatively, the second call value may be sent to all telephones at all times. Further, the second call number may be transmitted as a voice signal in the same way as the current call waiting system, and a hooking signal may be used as the response signal. In a digital network, control signals between the network exchange and the telephone set may be used, as in case a).

The operation of the control device 6 may be controlled by software or by hardware logic.

According to the features of the present invention, a telephone that holds an incoming call and accepts a new incoming call may be considered to be on hold;
You don't have to consider it.

〔Effect of the invention〕

As explained above, the present invention detects the state of each telephone through the control device or the state detection device, and when it is detected that all the telephones are busy or on hold, the incoming call detection device or the line When an incoming call is detected and notified to the control device, if there is a telephone with an incoming call on hold, the control device selects one or more telephones on hold and transmits the call from the signal transmitting/receiving device to the second telephone. When an incoming call signal is sent and the signal transmitting/receiving device detects a response signal from the telephone and notifies the control device, the control device connects the line to the telephone that answered first and indicates that there is a telephone with an incoming call on hold. If not, the control device causes all telephones to send out a second incoming signal from the signal transmitting/receiving device, detects a response signal from either the signal transmitting/receiving device or the telephone, and notifies the control device. This function puts the incoming call on hold and connects the line, so you can connect another line without waiting for the line connected to the telephone to be disconnected, and you can also connect to multiple lines without interrupting the connection. It has the advantage of being possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the present invention, and FIG. 2 is an operational procedure of the control device a6 when it is detected that all telephones are busy or on hold when the present invention is implemented. ]...Incoming call detection device 2...Call path 3...Telephone 4...Status detection device 5...Signal transmitting/receiving device 6...Control device Patent applicant Nippon Telegraph and Telephone Corporation Agent Patent attorney Figure 1: A configuration diagram of an exchange system showing an embodiment of the present invention; Figure 1: An explanatory diagram of the operating procedure of the control device when all telephones are detected to be busy or on hold when implementing the present invention. Figure 2

Claims (1)

[Scope of Claims] An incoming call detection device that detects an incoming call on a communication path, one or more telephones, a state detection device that detects whether each of the telephones is free, busy, or on hold, and a state detection device that detects whether each of the telephones is idle, busy, or on hold; In a busy interrupt connection method of a switching system comprising a signal transmitting/receiving device that transmits a second incoming signal and detects a response to the second incoming signal from each of the telephones, and a control device, the control device detects the state. When the state of each of the telephones is detected through the device and all the telephones are busy or on hold, when the incoming call detection device detects an incoming call to the line and notifies the control device. If there is a telephone with an incoming call on hold, the control device selects one or more telephones on hold and causes the signal transmitting/receiving device to send a second incoming call signal, and the signal transmitting/receiving device When the control device detects a response signal from the telephone and notifies the control device, the control device connects the line to the telephone that answered first, and if there is no telephone with an incoming call on hold, the control device connects the line to all telephones. When the signal transmitting/receiving device sends out a second incoming signal, detecting a response signal from the signal transmitting/receiving device or the telephone, and notifying the control device, the control device holds the incoming call of the telephone that responded first and connects the line. A busy interrupt connection method characterized by: