JP3072775B2 - Wireless communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication device having a transfer function.

[0002]

2. Description of the Related Art It is possible to transfer a call in progress to a cordless telephone from an extension or an outside line connected to a conventional private branch exchange or key telephone.

[0003] In addition, it has been possible to transfer from a cordless telephone master to a cordless telephone as a slave.

[0004]

However, especially in cordless telephones, the power is often turned off, the radio wave does not reach, or the call cannot be made. However, the transferor cannot know whether the call is being made or cannot be made. That is, when the cordless telephone is out of the way, it is not known whether the cordless telephone is ringing or not.

[0005] Therefore, even when a call cannot be made, there is a case where the caller is continually waiting for a response from the cordless telephone as if the call is being made.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a first determining means for determining whether a wireless connection with a transfer destination has succeeded or failed, and a second determining means for determining whether a call to be transferred is on hold. hand
And when the first determination means determines that the wireless connection with the transfer destination has been successful , the second determination means
If it is determined that the call to be transferred is not on hold, a holding means for holding the call to be transferred and a display means for performing a display in accordance with the judgment by the first judging means are provided so that the transfer destination and the wireless If it is determined that the connection was successful ,
If the call to be transferred is not held, the call to be transferred is held, and a display is made according to the determination whether the wireless connection with the transfer destination has succeeded or failed .

[0007]

First Embodiment An embodiment of the present invention will be described below.

FIG. 1 shows a configuration diagram of a fixed machine and a slave phone according to an embodiment of the present invention. The fixed unit comprises a private branch exchange 12 and a main telephone 14 housed therein. 12 is a private branch exchange main unit, 13 is a private branch exchange housed in a central office, 1
4 is a parent telephone, 15 is a memory 129 (ROM, RAM)
The control unit 16 that controls each unit of the master telephone is included in the control unit 15 and mainly controls a communication protocol of each unit related to wireless. A wireless control unit 17 is included in the control unit 15 and each unit other than the wireless-related unit. A call control unit that controls a display key, a voice processing circuit, and the like, and performs application processing related to various calls.

Reference numeral 18 denotes a keypad including a dial key, a transfer key, a hold key, a speaker key, a hook switch, and the like; 19, a 14-digit two-stage display; 110, a busy tone, a dial tone, and a hold tone. An audible display 111, a line interface for interfacing with a wired communication line, a radio 112 for transmitting an audio signal or a control signal as a radio signal, or receiving a radio signal and conversely converting it into an audio signal or a control signal A processing circuit; 113, an antenna; 114, a voice processing circuit for performing voice processing through a transmitter, a receiver, a speaker, or the like;
5 is a speaker, 116 is a handset transmitter 117 is a handset receiver, 118 is a line interface 1
11, a switching circuit for disconnecting a communication path between the audible display 110, the wireless processing circuit 112, and the audio processing circuit 114;

The above is the configuration relating to the parent telephone. still,
The call control unit 17 and the wireless control unit 16 may exist as software in the control unit 15 as software.

Reference numeral 119 denotes a child telephone, 120 denotes a control unit for controlling each part of the child telephone, 121 denotes a keypad including a dial key and a call key, 122 denotes an audible display for transmitting a ringing tone and the like, 123 denotes a speaker, 124 Is a wireless processing circuit for transmitting a voice signal or a control signal as a wireless signal, or receiving a wireless signal and converting it into a voice signal or a control signal, and 125 is a voice processing for performing voice processing through a transmitter and a receiver. The circuit, 126 is a handset receiver, 127 is a handset transmitter, and 128 is an antenna. The above is the configuration of the slave telephone.

In this embodiment, the on-hook operation refers to an operation of capturing a call path by a user, and can be achieved by, for example, picking up a receiver or inputting a speaker key. The end of the transfer operation means that the transfer is not attempted unless the transfer is requested again. That is,
Completion of the transfer operation indicates that no interrupt request is required for the transfer.

The transfer from the parent telephone 14 to the child telephone 119 will be described.

First, along with FIG. 2 to FIG.
4 will be described.

When the transfer key is input while the parent telephone is busy (S201), the call controller 17 sends a request for calling the child telephone to the wireless controller 16 (S202).
The start of the transfer as shown in FIG. 10D is displayed on the display 19 (S203). Then, the wireless controller 16 starts calling (S204) or inputs a transfer key (S20).
5) Wait for one of the following events: off-hook operation of master telephone 14 (S206), input of hold key (S207), and call failure by wireless controller (S208).

When the radio control unit 16 connects the radio line to the slave telephone 119 by the radio control unit 16 in step S204 and starts calling, the call control unit 17 refers to the memory 129 to check whether the parent telephone 14 is holding the call. (S22
6). Here, if not on hold, line interface 1
11, audible display 11 via switching circuit 118
The call is put on hold (S
227), a display during the calling of the child telephone as shown in FIG. 10B is made on the display 19 (S228). or,
By sending a hold command to the private branch exchange 12, the private branch exchange 1
2 may be reserved. Here, the child telephone 11
9 off-hook (S229), or carrier off of the slave telephone 119 (S230), off-hook operation of the master telephone 14 or input of a hold key (S231), and input of a transfer key (S232).

When the off-hook of the slave telephone set 119 is detected in step S229 via the wireless processing unit 112, the call control unit 17 checks the hook state of the parent telephone set (S24).
5). If the parent telephone is off-hook at that time, the display 19 is cleared (S246), and the switching circuit 1
A connection is made to control the sub telephone 18 to make the sub telephone 119 and the parent telephone 14 talk (S247). In addition, the child telephone 119
When the control unit 120 detects the off-hook of the slave phone, it sends out a radio signal indicating the off-hook.

When the on-hook operation of the master telephone is detected (S249), the switching circuit 118 is controlled and connected so that the held call can talk to the slave telephone (S25).
0), a display indicating that the slave telephone set 119 is communicating as shown in FIG. 10C is displayed on the display unit 19 (S25).
1), end the transfer process.

If it is determined in step S245 that the parent telephone 14 is in the on-hook state, the above-described processing from step S250 is performed without connecting the child telephone and the parent telephone.

When the off-hook operation of the master telephone 14 or the input of the hold key is detected in step S231, the call control unit 17 stops calling by the wireless control unit 16 (S2).
42), the display 19 is cleared (S243), the hold is released (S244), and the transfer process ends.

When detecting the input of the transfer key in S232, the call control unit 17 stops the call by the wireless control unit 16 (S233) and checks the hook state (step S234). If it is not in the on-hook state at that time, the display 19 is cleared in order to bring the parent telephone 14 into the communication state again (S235), and the hold is released (S2).
36), end the transfer process.

When the call control unit 17 recognizes that the telephone is in the on-hook state in S234, the telephone control unit 17 controls the audible display 110 to sound a ringing tone in order to emphasize to the parent telephone 14 that there is a held call (S237). Then, upon detecting the on-hook operation of the master telephone or the input of the hold key (S238), the call control unit 17 clears the display 19 (S239), stops the ringing tone (S240), and releases the hold (S241). ). In this way, the parent telephone 1 again
The transfer process ends when 4 is in a busy state.

When the transfer by the wireless control unit 16 fails in S208, that is, when the wireless line cannot be connected to the slave telephone set 119 by a predetermined wireless procedure, or in S230, the wireless processing circuit 112
When the carrier off of the slave telephone 119 is detected, the display 19 displays that the transfer failed because the slave telephone could not be called (S209). FIG. 10A shows an example of the display. The user is also informed that one of the causes of the transfer failure is expected to be that the child telephone is not turned on. Then, the call control unit 17 checks the hook state (S210). At this time, if you are off-hook,
With reference to the memory 129, it is confirmed whether or not it is on hold (S211). If the call is not on hold, the audible controller 110 is controlled to emit a beep sound to emphasize that the transfer was not possible while maintaining the busy state (S21).
2) After a few seconds, the display of the transfer failure on the display unit 19 is cleared (S213), and the process ends.

When it is determined in S211 that the call is on hold, the call control unit 17 controls the audible display 110 to
Then, a busy tone is transmitted to S.4 (S214). Then, input of a hold key (215) and on-hook operation (216)
Wait for the event.

When the input of the hold key is confirmed in S215, the call control unit 17 stops the busy tone (S21).
8), the display 17 is cleared (S219), the hold by the switching circuit 118 and the audible display 110 is released (220), and the master telephone 14 is again in a busy state and the processing is terminated. If the private branch exchange 12 is put on hold, a hold release command is sent to the private branch exchange 12 to release the hold.

When the on-hook operation is confirmed in S216, the busy tone is stopped (S217), and S237 is executed.
The following operation is performed.

On the other hand, if the input of the transfer key is detected in S205, it is determined whether the transfer key is on hold (S22).
3) If it is recognized that the processing is suspended, the processing of S233 and subsequent steps is performed. If it is determined in S223 that the telephone is not on hold, the call of the child telephone by the wireless control unit 16 is stopped in order to make the parent telephone 14 talk directly (S22).
4) The display 19 is cleared (S225), and the transfer process ends.

When the off-hook operation of the master telephone set 14 is detected in S206, the processing from S242 is performed.

When the input of the hold key is detected in S207, it is determined whether the hold key is held at that time (S2).
21). If the call is on hold, the processing of the transfer interruption after S242 is performed, and if not, the call is held (S22).
2) The process enters the waiting state for the event after S204 again.

Next, the incoming call processing of the parent telephone radio control unit 16 will be described with reference to FIGS. 7 and 8 (the transfer process corresponds to the process of receiving a call to a child telephone for the radio control unit 16; explain).

The radio control unit 16 of the master telephone waits for a call request of the slave telephone by the call control unit 117 while performing the carrier sense of the communication channel by the radio processing circuit 112 (S301). Therefore, if there is a sub-telephone call request, the radio processing circuit 112 carries out the control channel carrier (S303), and specifies a communication channel to the sub-telephone and transmits an incoming signal. Then, the channel is switched from the communication channel to the control channel (S305), and a timer provided on the memory 129 is set (S306). Therefore, the wireless control unit 16 receives one of the event of receiving the notification of the completion of the channel switching from the slave phone 119 (S307), the call stop request from the call control unit 17 (S308), and the timer timeout (S309). wait.

The wireless control unit 16 resets the timer when the wireless processing circuit 112 receives the notification of the completion of the channel switching from the slave telephone set 119 in S307 (S3).
11). Further, it controls the wireless processing unit 112 to turn on the carrier of the communication channel (S318), and makes a bell call request to the slave telephone set (S319). Then, it notifies the call control unit 17 of the start of calling the slave telephone. Therefore,
The wireless processing circuit 112 waits for any of the following events: reception of the off-hook of the sub-telephone set (S321), detection of the off-hook of the sub-telephone set by the radio processing circuit 112 (S322), and a call stop request from the call control unit 17 (S323). .

In step S321, when the wireless processing circuit 112 receives the off-hook of the slave phone, the wireless controller 16 notifies the call controller 17 of the off-hook of the slave phone (S326), and ends the processing.

When the radio processing circuit 112 detects that the carrier of the slave telephone has been turned off in S322, the radio control unit 16 controls the radio processing circuit 112 to release the communication channel (S327), and the communication control unit 17 Then, a notification of the child telephone carrier off is made (S328), and the process is terminated.

In step S323, when there is a call stop request from the call control unit 17, the wireless control unit 16
2 to transmit a call channel release request to the slave telephone set 119 (S324), and release the call channel (S32).
5) End the process.

When there is a call stop request from the call control unit 17 in S308, next, the wireless processing circuit 112 receives the completion of channel switching from the slave phone 119 (S31).
2) Or wait for a timer timeout (S313) event.

When wireless controller 16 receives the completion of channel switching from slave telephone set 119 in S312, it resets the timer (S314). Then, the wireless processing circuit 112 is controlled to turn on the carrier of the communication channel (S315), transmit a communication channel release request to the slave telephone (S316), and release the communication channel (S317).
The process ends.

On the other hand, when the timeout of the timer is detected in S313, the process is terminated as it is.

When the timeout of the timer is detected in S309, the call control unit 17 is notified of the call failure (S310), and the process ends.

Next, the incoming call processing of the slave telephone will be described with reference to FIG.

When the radio processing circuit 124 receives an incoming signal from the parent telephone (S401), the control unit 120 performs carrier sense on the channel specified in the incoming signal (S402) and switches to the communication channel (S40).
3). Then, the carrier is turned on (S404), and the parent telephone is notified of the completion of channel switching (S40).
5). Therefore, a bell call request from the parent telephone (S40)
6) Or wait for an event of a call channel release request (S407).

When the wireless processing circuit 124 receives the bell call request from the parent telephone at S406 by the wireless processing circuit 124, the control unit 120 sounds a ringing tone (S408), inputs a call key (S409), or requests a call channel release (S41).
Wait for event 0).

When the input of the call key is detected in S409, control unit 120 stops the ringing tone (S413), notifies off-hook to parent telephone 14 by wireless processing circuit 124 (S414), and ends the processing.

If there is a request to release the communication channel from the parent telephone 14 in S410, the ringing tone is stopped (S411).
Then, the communication channel is released (S412), and the process ends.

In S407, if there is a request to release the communication channel from master telephone 14, the processing in S412 and subsequent steps is performed.

In the above embodiment, the fixed unit is composed of the private branch exchange 12 and the master telephone 14;
In this configuration, the housing is separated into two parts, as if the part related to wireless control was the adapter type and the other part was the telephone body part, and these two cases were connected as necessary. By doing so, a parent telephone may be used.

[0047]

Second Embodiment In this embodiment, as shown in FIG. 11, in the transfer process of the call control unit 17 of the parent telephone 14, it is determined whether or not the call is on hold between S201 and S202 (S276). If the call is not on hold, the call is put on hold (step S277).
The audible display 110 is controlled to control the line interface 111
Send music on hold to the other party via. Further, a beep sound is made to the parent telephone 14 in place of the processing of S214 and thereafter,
It is also possible to release the hold and put the call to the parent telephone again, and clear the display after a few seconds. In this way, even if there is a transfer start request and the call is immediately put on hold, if the calling of the child telephone fails, the hold can be released without forcing the user to operate.

[0048]

[Third Embodiment] Further, it may be selectively performed whether the determination in S226 and the processing in S227 are deleted, or whether the hold processing of the call in S227 is held by setting.

When the call is deleted, it is determined whether or not the call is put on hold instead of S226 and S227. If the call is put on hold, the hold is forcibly released.

Also, when not deleting, S246 and S24
It is determined whether or not the call is on hold between 7 and if the call is on hold, the process from S247 onward is performed.

On the other hand, when the call is not on hold or when the hold is forcibly released, the call control unit 17 detects the off-hook of the slave telephone set 119 and sends a call to the parent telephone set. A beep sound indicating that the other party will change will be heard by the audible indicator 110, and then the call is connected to the slave telephone. In addition, a beep sound is issued to the parent telephone, an indication that the child telephone is talking, and a busy tone is transmitted. Thereafter, when the master telephone performs the on-hook operation, the transfer processing is terminated, so that the call can be transferred from the master telephone to the slave telephone without going through a call holding process. Further, when a transfer call is connected to a child telephone, it is possible to display that the communication partner is switched to the parent telephone and the call.

[0052]

Fourth Embodiment In the above embodiment, the fixed unit is composed of the private branch exchange 12 and the parent telephone 14, but as shown in FIG. 12, the private branch exchange 12 and the parent telephone 14 are integrally formed as a radio interface 130. It may be.

In this case, the main control unit 1 of the private branch exchange 12
29 detects the transfer request from the extension telephone 133 via the extension interface 131, and
30 may be controlled to call the sub telephone 119.

The extension telephone 133 is another extension telephone,
Alternatively, the call may be transferred to another extension telephone line or an outside line during a call with the cordless telephone 119 or an outside line.

FIG. 13 shows another operation.

When the transfer key of the extension telephone 133 is depressed during a call, the control unit 15 of the extension telephone 133 places the transmission key depression code on the control channel by the line interface 111, and the extension interface 1 of the private branch exchange 12
Send to 31. The dial number for designating the transfer destination is also transmitted as a numeric keypad code.

The main control unit 129 of the private branch exchange 12 receives and analyzes the transfer key press code and the numeric key press code via the extension interface 131 and the switch circuit 134, controls the switch circuit 134 and presses the transfer key. The other party of the extension telephone 133 is connected to the sound source 132,
A hold sound is transmitted (step S502). Further, the extension or the outside line specified by the ten key press code is identified, and it is determined whether or not the extension or the outside line can be called (step S503). If the calling is not possible, the main control unit 129 stops the calling (step S504). Further, a control command is transmitted through the switch circuit 134 and the extension interface 131, a beep sound is transmitted to the extension telephone 133, and a message indicating that the call cannot be made is displayed on the display unit 129 (step S505). Calling is impossible if the extension specified by the pressed numeric keypad does not exist at all, if the extension telephone is out of order and no response command is returned even if the calling command is sent, And so on. Also, even during a call, if a call during a call is possible, it is determined that the call can be made. In the case of an outside line, a busy tone or a ring back tone is detected by the outside line interface 135, and if a ring back tone cannot be detected, it may be determined that calling is impossible. or,
The determination in step S503 may not be performed in the case of external line transfer.

When transferring to the cordless telephone 119, the main controller 129 controls the wireless interface 130 to call the cordless telephone 119. If a response from the cordless telephone 119 cannot be detected, the wireless interface 130 notifies the main control unit 129 of the call failure via the switch circuit 134. In this case, the main control unit 129 determines that the call cannot be made.

Then, in step S506, the main control unit 129 releases the hold and reconnects the line. That is, the main control unit 129 controls the switch circuit 134 to transfer the transfer call connected to the sound source 132 again to the extension telephone 133.
Connect to

If it is determined in step S503 that the call can be made, main controller 129 calls the transfer destination and performs an off-hook operation of the telephone that has performed the transfer operation (step S507) or an off-hook operation of the transfer destination (step S508). Wait). In step S507, the main control unit 1
29 detects the off-hook operation of the transfer source via the extension interface 131, suspends the hold, and reconnects the line (step S506).

In step S508, the main control unit 129
Similarly, when the off-hook of the transfer destination is detected, the switch circuit 134 is controlled to control the extension telephone 1 that has performed the transfer operation.
33 and the called party are connected (step S50).
9). When the transfer requester goes off-hook after notifying the transfer destination responder by telephone, the main controller 1
29 controls the switch 134 to connect the call held in step S502 and the transfer destination (step S510).

When the off-hook of the transfer destination is detected in step S508, when the transfer source is off-hook, the held call and the transfer destination are connected without connecting the transfer source and the transfer destination.

The same applies to a case where the other party is a facsimile when the extension telephone 133 responds to an incoming call on the outside line, and the call is transferred to one of a plurality of facsimile machines accommodated in the extension (including a cordless facsimile). .

In the above description, the case where the extension telephone 133 requests the transfer has been described.
When the main controller 129 requests a transfer from the antenna 113, the wireless interface 130,
It is detected via the switch circuit 134. By doing so, the same control can be performed when transferring from the cordless telephone 119 to another cordless telephone or an extension telephone.

In step S503, the main control unit 129
Since it is possible to identify the reason why the call cannot be made, the extension telephone requesting the transfer in step S504 displays that the call cannot be made and the reason for the call. That is, if the extension number specified by the extension telephone requesting the transfer does not exist, that is, if the extension number is not registered in the built-in memory, a display notifying of an extension number input error is displayed.
If a response to the calling command is not returned due to a failure, interruption, or the like, a display notifying the failure of the transfer destination is displayed. If the transfer destination is busy, a display indicating that the transfer destination is busy is displayed. If a wireless line cannot be connected when calling a cordless telephone, a message to that effect is displayed.

The transfer requester looks at the display and, if the input is incorrect, re-enters the input. If the user is busy, he inputs another extension number. If it fails, you can request repair later.

The above description is for the case of transfer, but transfer may not be possible, and a normal call may also be displayed.

[0068]

According to the present invention, a first determining means for determining success or failure in the transfer destination and the wireless connection, transfer to
Second determining means for determining whether a call to be held is on hold, and when the first determining means determines that wireless connection with the transfer destination has been successful , the second determining means should transfer the call.
When it is determined that the call is not on hold, the wireless connection with the transfer destination can be successfully established by providing the holding means for holding the call to be transferred and the display means for displaying according to the judgment by the first judging means. Call to be forwarded if
If the call is not on hold, the call to be transferred is put on hold, so if the wireless connection with the transfer destination fails, the communication can be continued as it is, and the wireless connection with the transfer destination succeeds or fails. Since the display is performed according to the determination as to whether the operation has been performed, the operator can perform an appropriate operation .

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a fixed machine and a mobile machine according to a first embodiment.

FIG. 2 is a flowchart of a transfer process (1) of the fixed machine according to the first embodiment.

FIG. 3 is a flowchart of transfer processing (2) of the fixed machine according to the first embodiment.

FIG. 4 is a flowchart of a transfer process (3) of the fixed machine according to the first embodiment.

FIG. 5 is a flowchart of transfer processing (4) of the fixed machine of the first embodiment.

FIG. 6 is a flowchart of a transfer process (5) of the fixed machine according to the first embodiment.

FIG. 7 is a flowchart of the incoming call processing (1) of the fixed machine of the first embodiment.

FIG. 8 is a flowchart of an incoming call process (2) of the fixed machine according to the first embodiment.

FIG. 9 is a flowchart of an incoming call process of the mobile device of the first embodiment.

FIG. 10 is a diagram of a display unit of the first embodiment.

FIG. 11 is a flowchart of a transfer process of the fixed machine according to the second embodiment.

FIG. 12 is a system configuration diagram of a fourth embodiment.

FIG. 13 is a flowchart of another transfer process.

[Explanation of symbols]

 14 Main telephone 15 Control unit 19 Display 119 Sub telephone

Continuing on the front page (72) Inventor Shinji Tsuchida 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Shunji Arai 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor: Shigeru Hiroki 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (56) References JP-A-61-24335 (JP, A) JP-A-56-123143 (JP, A (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04M 1/725 H04M 1/00 H04M 1/02 H04Q 7/38

Claims (1)

(57) [Claims] 1. A first determining means for determining whether a wireless connection with a transfer destination has succeeded or failed, and a second determining means for determining whether a call to be transferred is on hold.
When the first determination unit determines that the wireless connection with the transfer destination has been successful, the transfer is performed by the second determination unit.
A wireless communication apparatus comprising: a holding unit that holds a call to be transferred when a call to be forwarded is not held; and a display unit that performs display according to the determination by the first determining unit.