JP2638043B2 - Wireless telephone equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wireless telephone device in which a plurality of wireless telephones are wirelessly connected to a connection device connected to one telephone line. Related to the technology of transferring between.

(Prior Art) As is well known, a wireless telephone device basically includes a connecting device connected to one telephone line and a wireless telephone wirelessly connected to the connecting device.

A wireless telephone device is also called a cordless telephone device. A wireless telephone can be freely carried within a certain range, and a plurality of wireless telephones can be provided so that a so-called extension call can be made. Suitable for use. Therefore, it is well known that various types of wireless telephone devices have been conventionally proposed, for example, one in which a handset is also added to the connection device side.

Here, the wireless telephone device to which the present invention is applied includes a plurality of wireless telephones, and the connection device has one handset without a handset.
It has two transceivers, and manages and controls one wireless line formed by the transceivers to enable external line communication with one wireless telephone.

That is, since this wireless telephone device is developed with a mind that a plurality of wireless telephone devices having the same configuration are arranged close to each other in an office, for example, one of a plurality of extension telephones is used. The main purpose is to control outgoing / incoming calls between external lines, and the internal calls are not regarded as important.

Therefore, in a device conventionally proposed as this type of wireless telephone device, when one wireless telephone A among a plurality of wireless telephones is making an external call, the external telephone call is handled by another wireless telephone B. , The operator of the wireless telephone A performs the transfer as follows.
First, an operation of setting the outside line to the hold state is performed, and then, an operation of connecting the outside line to the wireless telephone B is performed to go on-hook.

As a result, the connection device sets the outside line to the hold state and performs an operation of calling the wireless telephone B (this call is also displayed on the wireless telephone A).
When the operator responds, the hold state of the outside line is released and the wireless line connecting the outside line and the wireless telephone B is set. If the operator of the wireless telephone B does not respond due to absence or the like, the operator of the wireless telephone A detects the non-response of the transfer destination because the "display" does not disappear, and performs an operation of releasing the hold. Then, the connection device releases the hold state of the outside line and sets the wireless line connecting the outside line and the wireless telephone A. In other words, it is ensured that the outside line is not left with being suspended due to the absence of the transfer destination.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional wireless telephone device, the transfer recipient is not notified to that effect, so that the person who received the transfer is surprised. It is necessary to respond to an outside-line caller in a state where it is in a state of being left undesirably.

This problem can be easily solved if the connecting device is provided with another set of transceivers and the number of wireless lines is set to two, but then the size of the connecting device becomes large, the price becomes high, and the economical requirement is not met.

The present invention has been made in view of such problems,
It is an object of the present invention to provide a wireless telephone device that can easily inform a transfer destination party of a so-called outside line when transferring a so-called outside line between wireless telephones without increasing the size and cost of the device. It is in.

(Means for Solving the Problems) In order to achieve the above object, a wireless telephone device of the present invention has the following configuration.

That is, the wireless telephone device of the present invention is a wireless telephone device in which a plurality of wireless telephones are connected via one wireless line to a connection device connected to one telephone line; External line hold control means for receiving a hold signal from the wireless telephone A and setting the telephone line to a hold state; and receiving a signal for calling the wireless telephone B transmitted from the wireless telephone A following the hold signal. The wireless telephone B
And the connection device and the wireless telephone B
Extension call control means for setting the same communication channel as the communication channel used by the connection device and the radio telephone A; and when an off-hook signal from the radio telephone B is received after the operation of the extension call control means, Extension call control means for disabling transmission of the radio telephone B and transmitting a signal from the radio telephone A to the radio telephone B via the receiver and the transmitter of the connection device; and Upon receiving the on-hook signal from the radio telephone A, the hold state is released and the radio line set between the connection device and the radio telephone A is released.
Outside line connection control means for canceling the transmission prohibition of the telephone line and setting the connection between the telephone line and the wireless telephone set B.

In addition, in addition to the above configuration, when a signal requesting release of hold is received from the wireless telephone A before the off-hook signal is received from the wireless telephone B after the operation of the extension calling control means, the wireless telephone B A wireless telephone device comprising a second external line connection control means for releasing a wireless line setting, releasing the hold state, and setting a connection between the telephone line and the wireless telephone A.

(Operation) Next, the operation of the wireless telephone device of the present invention configured as described above will be described.

When it is necessary to transfer the outside line call to the wireless telephone B in the wireless telephone A during the call, the operator of the wireless telephone A first operates the hold key. The line is set to the hold state (operation of external line hold control means). Next, upon receiving a signal for calling the radio telephone B based on the key operation of the operator of the radio telephone A, the connection device performs a call operation of the radio telephone B (operation of the extension call control means). If the signal received and input after the operation is an off-hook signal from the wireless telephone B, the connection apparatus sets up a wireless line between the wireless telephones A and B (extension call control means). as a result,
The operator of the wireless telephone B is notified that there is an external call, and when the notification is completed, the on-hook signal is received and input from the wireless telephone A in the connection device. The wireless line is released, and a wireless line connecting the telephone line and the wireless telephone B is set (operation of the first external line connection control means). In this way, the operator of the wireless telephone B responds to an outside-line call after being notified in advance, so that it is possible to respond smoothly without any doubt.

If the operator of the radio telephone B does not respond due to the operation of the extension call control means, the connection release device transmits the hold release signal from the radio telephone A. A wireless line connecting the line and wireless telephone A is set (second external line connection control means). That is, it is possible to appropriately notify the outside line talker of the absence of the other party.

As described above, according to the wireless telephone device of the present invention, when transporting a so-called outside line between wireless telephones, attention is paid to the fact that the outside line is on hold, that is, the wireless line is in an unused state. Since it is possible to make a call between wireless telephones using a wireless line, it is possible to easily notify the transfer destination without inviting an increase in size and cost of the device. Therefore, the person who has received the transfer can respond after preparing his / her mind, and this has the effect of providing a wireless telephone device with excellent usability.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a configuration example of a wireless telephone device according to one embodiment of the present invention. FIG. 1 shows a case where two wireless telephones 1 and 2 are connected to a connection device 3 via one wireless line.

In FIG. 1, a wireless telephone 1 (2) includes a transmitter 1-
1 (2-1), the receiver 1-2 (2-2), and the control unit 1
-3 (2-3), a transmitting antenna 1-4 (2-4),
The receiving antenna 1-5 (2-5) and the receiver 1-6a (2-
6a) and a handset 1-6 (2-6) equipped with a transmitter 1-6b (2-6b), and a hook switch 1-7 (2-6).
7), dial key 1-8 (2-8), and hold key 1
-9 (2-9), an extension key 1-10 (2-10), and a speaker 1-11 (2-11).

The connection device 3 includes a transmitter 3-1 and a receiver 3-2.
A control unit 3-3, a transmission antenna 3-4, a reception antenna 3-5, a two-wire / four-wire conversion unit 3-6, a call signal detection circuit 3-7, a line relay 3-8, Hold circuit 3-9
The two-wire / four-wire conversion unit 3-6 includes a line relay 3-8.
Is connected to the station line 3-10 via the.

First, the basic control operation will be described with reference to the sequence diagrams of FIGS.

(A) When a call is made from the wireless telephone 1 (FIG. 2) When the operator of the wireless telephone 1 tries to make a call and off-hook the handset 1-6, the state of the hook switch 1-7 changes and the information is controlled. It is transmitted to the unit 1-3.
The control unit 1-3 drives the transmitter 1-1 and controls the wireless telephone 1
The transmission signal to which the unique identification code is added is transmitted from the antenna 1-4 using the radio wave of the control channel.

In the connection device 3 which has received the identification code of the wireless telephone of the own system via the antenna 3-5 and the receiver 3-2 on the control channel, the connection device 3 generates a channel designation code for designating a vacant communication channel and an identification code. The transmitter 3-1 and the antenna 3-
4 via The radio telephone 1 receiving this radio wave with the antenna 1-5 and the receiver 1-2 switches the channel to the designated communication channel. Then, it confirms that the switched communication channel is vacant, that is, it is unused in another system, and transmits a channel switching completion signal to the connection device 3.

On the other hand, the connection device 3 also checks whether the communication channel is free. Then, the connection device 3 proceeds to the next operation on the assumption that a wireless line with the wireless telephone 1 has been formed.

That is, the line relay 3-8 on the connection device 3 side is closed to form a DC closed loop for the exchange, and at the same time, an audio circuit ON signal is transmitted to the wireless telephone 1.
As a result, in the wireless telephone 1, an audio circuit including the transmitter 1-6a and the receiver 1-6b in the handset 1-6 is driven.

The dial tone transmitted from the exchange side of the office line 3-10 in a closed DC loop is modulated by the connection device 3 and transmitted by radio, so that the dial tone is received by the receiver 1 in the handset 1-6 of the radio telephone 1. Generated from 6a.

Next, by operating a predetermined dial number with the dial keys 1-8 on the wireless telephone 1, the dial number is transmitted to the exchange via the wireless line and the connection device 3. Upon completion of the dial signal transmission, the exchange performs an exchange connection operation and calls a desired partner. As a result, if the other party answers, a call is made.

To end the call, use the handset 1-6 of the wireless telephone 1.
The control unit 1-3 determines that the state of the hook switch 1-7 has changed by on-hooking, and sends an on-hook signal to the connection device 3. Next, the control unit 1-
Reference numeral 3 sends a call end signal to the connection device 3 a fixed time after sending the on-hook signal. The connection device 3 receives the end signal and opens the line relay 3-8 to release the line.

(B) At the time of an incoming call from an outside line (FIG. 3) When an incoming call is received from the central office to the system in the standby state, the call signal sent from the exchange side is sent to the call signal detection circuit 3- of the connection device 3. 7, an incoming call signal having an identification code of each wireless telephone added to the channel number of the communication channel stored and checked during standby by using the control channel for the wireless telephones 1 and 2. Send.

Among the wireless telephones 1 and 2 receiving this on the control channel, for example, the wireless telephone 1, the channel of the receiver 1-2 is set to the designated communication channel, and it is confirmed whether the channel is free. After confirming the availability of the channel, the “channel switching completion signal” is transmitted to the connection device 3. On the other hand, the connection device 3 also switches to the designated communication channel and confirms the availability of the communication channel. Then, the connection device 3 transmits a bell ringing signal in order to transmit a ringing tone from the exchange to the wireless telephones 1 and 2.

In the radio telephones 1 and 2 that have received the bell ringing signal, a ringing tone is generated from the speakers 1-11 and 2-11 to notify the user that a call has been received from the central office. For example, when the user of the wireless telephone 1 goes off-hook on the handset 1-6 in response to this call, the state of the hook switch 1-7 changes, and this change is read by the control section 1-3, and the off-hook signal is sent to the connection device. 3 is sent.

Upon receiving the off-hook signal, the connection device 3 closes the line relay 3-8, forms a DC closed loop with the converter, and sends an audio circuit ON signal to the wireless telephone 1 at the same time. In the wireless telephone 1 receiving the audio circuit ON signal,
The voice circuit composed of the transmitter 1-6b and the receiver 1-6a in the handset 1-6 is turned on to enter a call state. The call ending operation after the end of the call is the same as the above-mentioned "when calling from the wireless telephone 1".

(C) Transfer control operation (FIGS. 4 and 5) Now, it is assumed that an outside line and the wireless telephone 1 are in a telephone call via the connection device 3, and the operator of the wireless telephone 1 Suppose you forward it to the handler

FIG. 4 shows the operation when the transfer destination responds, and FIG. 5 shows the operation when the transfer destination does not respond.

First, in FIG. 4, the operator of the radiotelephone 1 operates the hold key 1 to continue the external line DC loop “closed” during a call.
Perform the operation of -9. Then, the hold signal is transmitted from the wireless telephone 1 to the connection device 3 via the wireless line. In the connection device 3 that has received the hold signal, the hold circuit 3-9 is turned on to hold the closed state of the external line DC loop. At this time, a melody signal is sent to the other party for notification of the hold state (operation of the outside line hold control means).

Next, the operator of the radiotelephone 1 dials in the extension key 1-10 for setting an extension and the extension number assigned to the transfer destination radiotelephone 2 to be transferred, and the call channel S1 used so far. Is kept as it is, transmission is stopped, and the apparatus enters a signal reception waiting state on the same channel S1.

On the other hand, when the connection device 3 calls the wireless telephone 2 specified by the extension number and receives a response from the wireless telephone 2, it designates the wireless telephone 2 to shift to the communication channel S1. Then, the connection device 3 sets the communication channel of the wireless line to S1, and upon receiving a channel switching completion signal from the wireless telephone 2 on the communication channel S1, transmits a bell ringing signal on the communication channel S1 (extension call control). Operation of the means). As a result, since the wireless telephone 1 is waiting for a signal to be received on the communication channel S1, the bell ringing signal can be received. Therefore, an indication to the operator that the wireless telephone 2 is being called. I do. On the other hand, the wireless telephone 2 receives the bell ringing signal and generates a ringing tone.

When the operator of the wireless telephone 2 goes off-hook in response, an off-hook signal is transmitted from the wireless telephone 2 to the connection device 3, so that the connection device 3 stops the bell ringing signal,
A reception ON signal for reception ON and transmission inhibition is transmitted to the wireless telephone 2, and a transmission ON signal for transmission ON and reception inhibition is transmitted to the wireless telephone 1 (operation of the extension communication control means). As a result, the radio telephone 1 stops displaying the ringing of the radio telephone 2 because the bell ringing signal has disappeared, so that the operator knows the response of the radio telephone 2 and informs the handset 1-6 of the call transfer. Speak toward the transmitter 1-6b.

Since this message is transmitted from the wireless telephone 1 to the connection device 3 through the communication channel S1, the connection device 3 transmits the received signal as it is. Since the wireless telephone 2 is in the signal receiving state, the message is received and transmitted from the receiver 2-6a of the handset 2-6 to the operator.

Next, in the wireless telephone 1, when the on-hook is detected after the end of the message, the end signal is transmitted to the connection device 3. Therefore, the connection device 3 sends a line connection signal enabling transmission to the wireless telephone 2, Enables communication with an outside line (operation of the first outside line connection control means).

Next, an operation when there is no response from the wireless telephone 2 will be described with reference to FIG. The control operations from the call state to the ringing of the wireless telephone 2 are the same as those already described, and the description is omitted. If the display of calling the wireless telephone 2 continues for a long time on the wireless telephone 1, the wireless telephone 1
The operator presses the hold key again. Then, the connection device 3
, The connection device 3 releases the hold state of the external line and recovers the communication state between the external line and the wireless telephone 1 (operation of the second external line connection control means). As a result, the operator of the wireless telephone 1 can inform the outside caller that the operator of the wireless telephone 2 is absent. Then, when detecting the on-hook, the wireless telephone 1 transmits an end signal to the connection device 3 and enters a standby state. On the other hand, the connection device 3 releases the DC loop of the external line and enters a standby state.

(Effects of the Invention) As described above, according to the wireless telephone device of the present invention, when a so-called outside line is transferred between wireless telephones,
Paying attention to the fact that the outside line is in a hold state, that is, the wireless line is in an unused state, so that it is possible to make a call between wireless telephones using the wireless line,
This can be easily communicated to the transfer destination without increasing the size and cost of the device. Therefore, the person who has received the transfer can respond after preparing his / her mind, and this has the effect of providing a wireless telephone device with excellent usability.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a wireless telephone device according to an embodiment of the present invention, FIG. 2 is a control operation sequence diagram when a call is made from a wireless telephone, and FIG. 3 is a control operation when an incoming call is received. FIG. 4 is a sequence diagram, and FIG. 4 and FIG. 5 are transfer control operation sequence diagrams between wireless telephones. 1,2 ... wireless telephone, 1-1,2-1 ... transmitter, 1-2,2
-2: Receiver, 1-3, 2-3 ... Control unit, 1-4, 2-4
... Transmit antenna, 1-5, 2-5 ... Receive antenna, 1
-6,2-6 ... handset, 1-6a, 2-6a ... receiver, 1-6b, 2-6b ... transmitter, 1-7,2-7 ... hook switch, 1-8, 2-8: Dial keys, 1-9, 2-9
... Hold key, 1-10, 2-10 ... Extension key, 1-11, 2-
11 speaker, 3 connection device, 3-1 transmitter,
3-2: Receiver, 3-3: Control unit, 3-4: Transmitting antenna, 3-5: Receiving antenna, 3-6: 2-wire 4
Line conversion circuit, 3-7 ... Paging signal detection circuit, 3-8 ...
Line relay, 3-9 ... holding circuit.

Claims (2)

(57) [Claims] 1. A wireless telephone device in which a plurality of wireless telephones are connected to a connection device connected to one telephone line via one wireless line; Outside line hold control means for setting the telephone line to a hold state in response to the hold signal; and receiving a signal for calling the wireless telephone B transmitted from the wireless telephone A subsequent to the hold signal, and An extension call control means for performing a paging operation and setting the connection device and the radio telephone B to the same communication channel as the communication channel used by the connection device and the radio telephone A; When receiving an off-hook signal from the wireless telephone B, the wireless telephone B is prohibited from transmitting,
Extension call control means for transmitting a signal from the radio telephone A to the radio telephone B via a receiver and a transmitter of the connection device; and after the operation of the extension call control means, the radio telephone A
Receiving the on-hook signal from the device, releases the hold state, releases the wireless line set between the connection device and the wireless telephone A, releases the transmission inhibition of the wireless telephone B, and releases the telephone line and the wireless telephone B. And an external line connection control means for setting the connection of the wireless telephone. 2. If a signal requesting release of hold is received from the radio telephone A before the off-hook signal is received from the radio telephone B after the operation of the extension call control means, the radio line setting of the radio telephone B is performed. And cancel
2. The wireless telephone device according to claim 1, further comprising: a second external line connection control unit that releases the hold state and sets a connection between the telephone line and the wireless telephone A.