JPH01221940A - Radio telephone system - Google Patents

Abstract

PURPOSE:To perform speech with satisfactory operability by transmitting a message to an opponent easily by performing the speech between radio telephone sets by utilizing a radio line not being used when a so-called line wire is transferred between the radio telephone sets. CONSTITUTION:The server of a telephone system 1 operates a holding key first, and a connection device 3 radio-receiving the holding signal sets a telephone line at a holding state. Next, the device 3 performs the call operation of the radio telephone set 2 by receiving the call signal of the telephone set 2 based on the key operation of the server of the radio telephone set 1. And the device 3 sets a radio circuit between the telephone sets 1 and 2 after the above operation when a received and inputted signal shows an off-hook signal from the telephone set 2. As a result, the fact of line wire speech is informed to the server of the telephone set 2, and the reception of an on-hook signal is inputted from the telephone set 1 to the device 3, thereby, based on the above, the holding state and the radio line are cancelled, and also, the radio line to connect the telephone line to the telephone set 2 is set. And the server of the telephone set 2 responds after being informed, therefore, smooth response can be performed.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a wireless telephone device in which a plurality of wireless telephones are wirelessly connected to a connecting device connected to one telephone line, and in particular, the present invention relates to a wireless telephone device in which a plurality of wireless telephones are wirelessly connected to a connecting device connected to one telephone line. Regarding 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 this connecting device.

Wireless telephone devices are also called cordless telephone devices, and can be carried freely within a certain range, and multiple wireless telephones can be installed so that so-called internal calls can be made, so they can be used in offices, etc. suitable for use. Therefore, it is well known that various types of wireless telephone devices have been proposed, for example, those in which a handset is also added to the connecting device side.

Here, the wireless telephone device to which the present invention is directed includes a plurality of wireless telephones, and the connecting device does not have a handset but has one transmitter/receiver and manages and controls one wireless line formed thereby. This allows outside calls to be made with one wireless telephone.

In other words, this wireless telephone device was developed with the idea in mind that multiple wireless telephone devices of the same configuration would be placed close to each other in an office, for example, so it would be considered one of a plurality of so-called extension telephones. Its main purpose is to control calls between outside lines, and calls from internal lines are not considered important.

Therefore, in conventionally proposed radio telephone devices of this type, when one radio telephone A among a plurality of radio telephones is making an outside call, the outside call is transferred to the operator of another radio telephone B. , the operator of wireless telephone A would perform the transfer as follows. First, an operation is performed to set the outside line on hold, and then an operation is performed to connect the outside line to wireless telephone B to go on-hook.

As a result, the connecting device places the outside line on hold and calls radiotelephone B (this call is also displayed on radiotelephone A), and if the operator of radiotelephone B answers, the outside line is placed on hold. Release the hold state and set up a wireless line to connect it to wireless telephone B. If the operator of radio telephone B does not respond due to absence or the like, the operator of radio telephone A detects the transfer destination's non-response since the "display" does not disappear, and performs an operation to release the call from hold. Then, the connecting device releases the hold state of the outside line and sets up a wireless line to connect it to wireless telephone A. In other words, the outside line is not left on hold due to the absence of the forwarding destination.

(Problem to be Solved by the Invention) However, in the conventional wireless telephone device described above, there is no notification to that effect to the transferee, so the transferee may be caught by surprise. This is undesirable because the user has to deal with the caller on the outside line while the user is in a state where the caller is on an outside line, and the result is confusion.

This problem can be easily solved by installing another set of transmitter/receiver in the connection device, or by making the number of wireless lines two. However, this would make the connection device larger and more expensive, which would not meet the economic requirements. .

The present invention was devised in view of the above problems, and its purpose is to: 1. transfer so-called outside lines between wireless telephones; To provide a radio telephone device that can easily notify a transfer destination without increasing the size and price of the device.

(Means for Solving the Problems) In order to achieve the above object, the 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 connecting device connected to one telephone line; external line hold control means for setting a telephone line on hold in response to a hold signal from the wireless telephone A; receiving a signal calling the wireless telephone B transmitted from the wireless telephone A subsequent to the hold signal; extension call control means for calling the radio telephone B; when the signal received and input after the operation of the extension call control means is an off-hook signal from the radio telephone B, a wireless communication is established between the radio telephones A and B; an extension call control means for setting up a line;
After the extension call control means operates, receiving an on-hook signal from the wireless telephone A, canceling the hold state and canceling the set wireless line, and setting a wireless line connecting the telephone line and the wireless telephone B. a first outside line connection control means; when the signal received and input after the operation of the extension call control means is a hold release signal from the wireless telephone A, the hold state is canceled and the telephone line and the wireless telephone A are disconnected; A second external line connection control means for setting a wireless line to be connected.

(Function) Next, the function of the radio telephone device of the present invention configured as described above will be explained.

When it becomes necessary for wireless telephone A to transfer an external call to wireless telephone B, the operator of wireless telephone A first operates the hold key, and the connecting device that receives the hold signal wirelessly transfers the call to wireless telephone B. Place a line on hold (
Operation of extension call holding control means) 0 Next, upon receiving a signal to call radio telephone B based on the key operation of the operator of radio telephone A, the connecting device performs a calling operation of radio telephone B (operation of extension call control means) Then, in the connecting device, when the signal received and input after the operation is an off-hook signal from the wireless telephone B, a wireless line is set up on the same day as that of the wireless telephone A (extension call control means), and as a result, The operator of wireless telephone B is notified that there is an outside call, and when the notification is finished, the connecting device receives an on-hook signal from wireless telephone A. Upon receiving this, the on-hook signal is released from the hold state and the setting is made. The wireless line is canceled and a wireless line connecting the telephone line and the wireless telephone B is set up (operation of the first outside line connection control means). In this way, the person handling the wireless telephone B is notified in advance and then responds to the outside call, so he or she can respond smoothly without any confusion.

Note that if the operator of radio telephone B does not respond due to the operation of the extension call control means, the connection device releases the hold state and disconnects the call because a hold release signal is transmitted from radio telephone A. It is possible to set up a wireless line connecting the line and the wireless telephone A (second outside line connection control means), that is, to appropriately notify the outside line caller of the absence of the other party.

As described above, according to the wireless telephone device of the present invention, when transferring a so-called outside line between wireless telephones, it is possible to transfer the outside line by focusing on the fact that the outside line is on hold, that is, the wireless line is not in use. Since it is possible to make a call between wireless telephones using a wireless line, it is possible to easily notify the transferee party of the transfer without increasing the size and price of the device. Therefore, the person receiving the transfer is able to respond after mentally preparing himself, which has the effect of providing an easy-to-use wireless telephone device.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

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

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

The connection device 3 also includes a transmitter 3-1, a receiver 3-2, a control section 3-3, a transmitting antenna 3-4, a receiving antenna 3-5, and a 2-wire/4-wire converter 3- 6, a ringing signal detection circuit 3-7, a line relay 3-8, and a hold circuit 3-9. 10.

First, the basic control operation will be explained with reference to the sequence diagrams of FIGS. 2 and 3.

(a) When making a call from the wireless telephone 1 (Figure 2) When the operator of the wireless telephone 1 attempts to make a call, the handset 1-6
When the hook switch 1-7 goes off-hook, the state of the hook switch 1-7 changes, and the information is transmitted to the control unit 1-3. Control part 1
-3, the transmitter 1-1 is driven, and a call signal to which the unique identification code of the radio telephone 1 is added is transmitted from the antenna 1-4 using radio waves of the control channel.

The connection device 3, which has received the identification code of the wireless telephone of its own system on the control channel via the antenna 3-5 and the receiver 3-2, sends a message consisting of a channel designation code and an identification code that designate an available communication channel. A transmitter 3-1 and an antenna 3-4 use the call response signal as a control channel radio wave.
Send via. This radio wave is received by antenna 1-5, f
The wireless telephone 11!11 received by il-2 switches the channel to the specified communication channel, confirms that the switched communication channel is vacant, that is, is not used by another system, and then connects the connected device. A channel switching completion signal is sent to 3.

On the other hand, the connection device 3 also checks whether the communication channel is free. Then, the connecting device 3 assumes that a wireless line with the wireless telephone 1 has been established and moves on to the next operation.

That is, close the line relay 3-8 on the connecting device 3 side,
At the same time, forming a DC closed loop with the exchange,
A voice circuit ON signal is transmitted to the wireless telephone 1. As a result, in the radio telephone 1, the audio circuit comprised of the transmitter 1-6a and the receiver 1-6b in the handset 1-6 is driven.

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

Next, by operating a predetermined dial number on the radio telephone 1 using the dial keys 1-8, this dial number is sent to the exchange via the radio line and the connection device 3.

Upon completion of sending the dial signal, the exchange performs an exchange connection operation and calls the desired party. If the other party responds, the call status is established.

To end the call, by putting the handset 1-6 of the wireless telephone 1 on-hook, the control unit 1-3 determines that the state of the hook switch 1-7 has changed, and sends an on-hook signal to the connecting device 3. Zero-order control unit 1-3 to send
sends a call termination signal to the connection device 3 after a certain period of time after sending the on-hook signal. The connection device 3 receives the call termination signal and opens the line relay 3-8 to release the central line.

(b) When a call is received from an outside line (Fig. 3) When the system in standby mode receives a call from the central office line, the ring signal detection circuit 3 of the connecting device 3 detects the ring signal sent from the exchange. Wireless telephone 1 receives an incoming call signal in which the identification code of each wireless telephone is attached to the channel number of the communication channel detected by 7, checked for availability during standby, and memorized.
Transmit to the same 2 using the control channel.

For example, radio telephone 1 among radio telephones 1 and 2 that receives this on the control channel sets the channels of receivers 1 and 2 to the designated communication channel, and confirms whether the channel is free. If the availability of that channel is confirmed, a "channel switching completion signal" is sent to the connection device 3.Meanwhile, the connection device 3 also switches to the specified communication channel and confirms the availability of that communication channel.Then, the connection device 3 sends out a bell ringing signal to convey the ringing tone from the exchange to the radio telephones 1 and 2.

The radio telephones 1 and 2 that have received the bell ringing signal generate a ringing tone from the speakers 1-11 and 2-11 to notify the user that a call is coming from the central office line. When the user takes the handset 1-6 off-hook in response to this call, the state of the hook switch 1-7 changes, this change is read by the control unit 1-3, and an off-hook signal is sent to the connecting device f3. be done.

The connection device 3 that has received the off-hook signal closes the line relay 3-8, forms a DC closed loop with the exchange, and at the same time sends an audio circuit ON signal to the radio telephone 1. In the radio telephone 1 that has received the audio circuit ON signal, the transmitter 1-6b in the handset 1-6 and the receiver 1-
The voice circuit constituted by 6a'''C' is turned on to enter a telephone call state.The call termination operation after the telephone call is completed is the same as in the case of "calling from radio telephone 1" described above.

(c) Transfer control operation (Figs. 4 and 5) Suppose that an outside line and wireless telephone 1 are currently talking through connection device 3, and the person handling the wireless telephone fill is transmitting the call to wireless telephone 2. Suppose you want to forward it to the handler.

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

First, in FIG. 4, the operator of the radio telephone 1 presses the hold key 1 to continue "closing" the outside line DC loop during a call.
- Perform operation 9. Then, a hold signal is transmitted from the wireless telephone 1 to the connecting device 3 via the wireless line. When the connecting device 3 receives the hold signal, it turns on the hold circuit 3-9 to keep the outside line DC loop closed.
Send a signal (operation of outside line hold control means).

Next, the operator of the wireless telephone 1 dials in the extension key 1-10 for setting an extension and the extension number attached to the forwarding destination wireless telephone 2 to which he/she wishes to transfer, and also dials in the call channel S1 that has been used until now. is held as it is, stops transmission, and enters a signal reception wait state on the same channel S1.

On the other hand, when the connecting device 3 calls the wireless telephone 2 specified by the extension number and receives a response from the wireless telephone 2,
A channel designation is made for the wireless telephone 2 to move to the communication channel S1. Then, the connection device 3 sets the communication channel of the wireless line to 81, and when it receives a channel switching completion signal from the wireless telephone 2 on the communication channel S1, it 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 to receive a signal on the communication channel S1, it is able to receive the bell ringing signal, so that the operator can receive an indication that the wireless telephone 2 is currently ringing. Meanwhile, the radio telephone 2 receives the bell ringing signal and generates a ringing tone.

Then, when the operator of the wireless telephone 1f12 answers and goes off-hook, an off-hook signal is sent from the wireless telephone 2 to the connecting device 3, so the connecting device 3 stops the bell ringing signal and turns on the reception to the wireless telephone 2. A receive ○N signal for prohibiting transmission is transmitted to the radio telephone 1, and a transmit ON signal for prohibiting reception is transmitted to the radio telephone 1 (operation of extension call control means). As a result, the wireless telephone 1 stops displaying that it is calling the wireless telephone 2 because the bell ringing signal is no longer present, so the operator learns of the response from the wireless telephone 2 and informs the handset 1-6 that the call will be transferred. Transmitter 1-
Speak to 6b.

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

Next, when the wireless telephone 1 finishes the message and detects on-hook, it transmits a call termination signal to the connection device 3.
The connection device 3 sends a line connection signal to the wireless telephone 2 to enable transmission, and enables communication with an outside line (first
operation of external line connection control means).

Next, the operation when there is no response from wireless telephone 2 is described in the fifth section.
Wireless telephone 8!12 from 6 call state explained with reference to the figure
Since the control operations up to the ringing of the bell are the same as those already explained, the explanation will be omitted. If the display calling wireless telephone 2 continues for a long time on wireless telephone 1,
! The operator at No. 11 presses the hold key again. Then, a hold signal is sent to the connection bag W, 3, so the connection device 3 releases the hold state of the outside line and restores the communication state between the outside line and the wireless telephone 1 (the second outside line connection control means As a result, the operator of the wireless telephone 1 can notify the outside line caller that the operator of the wireless telephone 2 is absent. When the wireless telephone 1 detects on-hook, it transmits a call termination signal to the connection device 3 and enters a standby state. on the other hand,
The connecting device 3 releases the DC loop of the outside line and enters the standby state.

(Effects of the Invention) As explained above, according to the wireless telephone device of the present invention,
When transferring a so-called outside line between wireless telephones, we focus on the fact that the outside line is on hold, that is, the wireless line is not in use, and use that wireless line to make a call between the wireless telephones. This makes it possible to easily notify the recipient of the transfer without increasing the size or price of the device. Therefore, the person receiving the transfer is able to respond after mentally preparing himself, which has the effect of providing an easy-to-use wireless telephone device.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the configuration of a radio telephone device according to an embodiment of the present invention, Fig. 2 is a control operation sequence diagram when a call is made from the radio telephone, and Fig. 3 is a control operation when there is an incoming call. Sequence diagrams FIGS. 4 and 5 are sequence diagrams of transfer control operations between wireless telephones. 1.2... Radio telephone, 1-1.2-1...
......Transmitter, 1-2.2-2...Receiver, 1-3.2-3...Control unit, 1-4.2
-4...Transmission antenna, 1-5.2-5...
...Receiving antenna, 1-6.2-6...
Handset, 1-6a, 2-6a---Telephone receiver,
1-6b, 2-6b...Transmitter, 1-7.2
-7...Hook switch, 1-8.2-8.
...Dial key, 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...Transmission antenna, 3-5...
...Receiving antenna, 3-6...2-wire 4-wire conversion circuit, 3-7... Calling signal detection circuit, 3
-8... Line relay, 3-9...
Holding circuit. Agent: Patent Attorney Yoshi Yahata Addressed to Hiromoto: 11 tons of Q&A, Manmerii line $ / Diagramless phone style / 5/) Calling 2 Diagram Circulation to wireless telephone glue

Claims (1)

[Claims] A wireless telephone device in which a plurality of wireless telephones are connected via a single wireless line to a connecting device connected to one telephone line; the connecting device receives a hold signal from a wireless telephone A during a call. external line hold control means for setting the telephone line on hold; an extension line for receiving a signal for calling the wireless telephone B transmitted from the wireless telephone A subsequent to the holding signal and performing a calling operation for the wireless telephone B; a call control means; an extension call control means for setting a radio line between the radio telephones A and B when the signal received and input after the operation of the extension call control means is an off-hook signal from the radio telephone B; After the operation of the extension call control means, receiving an on-hook signal from the wireless telephone A, canceling the hold state and canceling the set wireless line;
a first outside line connection control means for setting a radio line connecting a telephone line and the radio telephone B; when the signal received and input after the operation of the extension call control means is a hold release signal from the radio telephone A; and second outside line connection control means for canceling the hold state and setting up a wireless line for connecting the telephone line and the wireless telephone set A.