JPH04208755A - Communication controller - Google Patents

Abstract

PURPOSE:To reduce the processing operation of an operator when the call destination cannot be called at the time of transfer by providing a call means which calls the transfer destination based on a transfer request of the call during speech and a control means which responds to the transfer call again in the case of a failure in call of this call means. CONSTITUTION:When a master telephone set is busy and a transfer key is inputted, a radio control part 16 is requested to call a slave telephone set. The slave telephone set 119 and a radio line are connected by the radio control part 16 to start calling and a speech control part 17 refers to a memory to check whether the master telephone set 14 holds the call or not. When it does not hold the call, the call is held. When detecting hooking-off of the slave telephone set 119 through a radio processing part 112, the speech control part 17 confirms the hook state of the master telephone set. When the master telephone set is in the off-hook state at this time, the slave telephone set 119 and the master telephone set 14 are connected for speech. When the on-hook operation of the master telephone set is detected, a switching circuit 118 is so controlled that the held call is connected to the slave telephone set.

Description

[Detailed description of the invention]

[00011

[Industrial Field of Application] The present invention relates to a communication control device that controls transfer. [0002] Some conventional private branch exchanges and key telephone devices provide transfer services. In addition, it was also possible to transfer information between a base unit and a slave unit in a cordless telephone device. [0003]

[Problem to be Solved by the Invention] However, in the above-mentioned conventional example, if an attempt is made to transfer but the number of the transfer destination is inputted incorrectly and an impossible number is entered, or the transfer destination is malfunctioning or the wiring is If the call was missed or if the call was busy, an operation had to be performed to cancel the transfer. Therefore, not only is the operation troublesome, but a call on hold may also be disconnected due to an erroneous operation. [0004]

[Means for Solving the Problems] The present invention provides a calling means for calling a transfer destination based on a request for transfer of a call in progress, and a control means for making the transfer call and re-answer when the calling means cannot make the call. By providing this, when a call in progress cannot be transferred, the call to the transfer destination is canceled without waiting for an operation by the operator. [0005] The present invention also provides a holding means for holding a line in use based on a transfer request, a calling means for calling a transfer destination, and when the calling means cannot make a call,
By providing a control means for releasing the hold by the holding means, when the transfer destination cannot be called, the transfer call is released from hold without waiting for an operation by the operator. [0006] Further, the present invention includes a calling means that calls a transfer destination based on a transfer request, and when an off-hook operation of a transfer source telephone is detected during a call by the calling means, the calling means stops the call, and the transfer call is stopped. By providing a control means for releasing the call from hold, the transfer source telephone can resume the transferred call and the conversation by raising the handset during the transfer. [0007]

[First Embodiment] An embodiment of the present invention will be described below. [00081 FIG. 1 shows a configuration diagram of a fixed device and a slave telephone in an embodiment of the present invention. The fixed equipment consists of a private branch exchange 12 and a main telephone set 14 accommodated therein. 12 is a private branch exchange main device, 13 is a central office line accommodated in the private branch exchange, 1
4 is the main phone, 15 is the memory 129 (ROM, RAM
) and controls each part of the base phone.The control unit 16 is included in the control unit 15 and mainly controls the communication protocols of each part related to wireless.The control unit 17 is included in the control unit 15 and controls each part other than wireless. This is a call control unit that controls the display keys, voice processing circuit, etc., and processes various call-related applications. [0009] 18 is a keypad consisting of a dial key, transfer key, hold key, speaker key, hook switch, etc.; 19 is a display consisting of 14 digits in two rows; 110 is an audible device that sends out a busy tone, dial tone, hold tone, etc. 111 is a line interface that interfaces with a wired communication line, and 112 is a wireless processing unit that transmits audio signals and control signals as wireless signals, or receives wireless signals and converts them into audio signals and control signals. circuit,
113 is an antenna, 114 is an audio processing circuit that performs audio processing through a transmitter, receiver, speaker, etc., 115 is a speaker, 116 is a handset transmitter 117 is a handset receiver, 118 is a line interface 111
, the audible display 110, the wireless processing circuit 112, and the audio processing circuit 114. [00101 The above is the configuration related to the parent phone. still,
The call control section 17 and the wireless control section 16 may exist as software programs in the control section 15. [00111119 is a slave phone, 120 is a control unit that controls each part of the slave phone, 121 is a keypad consisting of a dial key, a call key, etc., 122 is an audible display that sends out a ring tone, etc., 123 is a speaker, and 124 is an audio signal 126 is a wireless processing circuit that processes audio and control signals as wireless signals, or receives wireless signals and converts them into audio signals and control signals; 125 is an audio processing circuit that processes audio through a transmitter, receiver, etc.; 127 is a handset receiver, 127 is a handset transmitter, and 128 is an antenna. The above is the configuration of the slave phone. [0012] In this embodiment, the on-hook operation refers to an operation in which the user seizes the communication path, and can be achieved by, for example, lifting the receiver or inputting the speaker key. Furthermore, termination of the transfer operation means that no transfer is attempted unless there is a request for transfer again. That is,
Completion of a transfer operation indicates that no abort request is necessary for that transfer. [0013] Transfer from the parent phone 14 to the child phone 119 will be explained. [0014] First, in accordance with FIGS. 2 to 6, the main phone 1
The transfer processing of the call control unit 17 of No. 4 will be explained. [00151 When the transfer key is input while the parent phone is in the middle of a call (S201), the call control unit 17 requests the wireless control unit 16 to call the slave phone (3, 202).
, the display 19 indicates the start of transfer as shown in FIG. 10(d).
(3203). Then, the wireless control unit 16 starts calling (S204) or inputs the transfer key (S204).
05), off-hook operation of the main phone 14 (S206),
It waits for either the input of a hold key (S207) or the failure of a call by the wireless control unit (3208). [00161 When the radio control unit 16 connects the wireless line to the slave telephone 119 and starts a call in 5204, the call control unit 17 refers to the memory 129 and checks whether the master telephone 14 is holding the call. (S22
6). Here, if it is not on hold, line interface 1
11, audible indicator 11 via switching circuit 118
Put the call on hold by sending a hold tone from 0 to 5.
227), the display 19 displays that the child telephone is calling as shown in FIG. 10(b) (S228). Alternatively, a hold command may be sent to the private branch exchange 12 to cause the private branch exchange 12 to hold the data. Here, slave phone 1
19 off-hook (S229), or carrier off of slave telephone 119 (S230), off-hook operation of master telephone 14, input of hold key (S231), and input of transfer key (S232). [0017] When the call control unit 17 detects off-hook of the child phone 119 via the wireless processing unit 112 in 5229, it checks the hook state of the parent phone (S245).
). If the main phone is off-hook at that time, the display 19 is cleared (5246), and the switching circuit 11
8 to connect the slave telephone 119 and the master telephone 14 for conversation (S247). In addition, slave phone 119
When the control unit 120 detects that the slave phone is off-hook, it sends out a radio signal indicating off-hook. (0018) Therefore, when the on-hook operation of the parent phone is detected (S249), the switching circuit 118 is controlled to connect the held call to the slave phone 525.
0), the display section 19 displays an indication that the child telephone 119 is in communication as shown in FIG. 10(c) (S251).
, ends the transfer process. [0019] When it is recognized in 5245 that the master telephone 14 is in an on-hook state, the above-mentioned processing from 8250 onwards is performed without connecting the slave telephone and the master telephone. [0020] When the call control unit 17 detects an off-hook operation of the main phone 14 or an input of the hold key in 5231, the call control unit 17 stops the call by the wireless control unit 16.
42), clear the display 19 5243), release the hold 3244), and end the transfer process. [00211 Also, when the call control unit 17 detects the input of the transfer key in 5232, it stops the call by the wireless control unit 16 (S233) and checks the hook state (Step S234). If it is not on-hook at that time, clear the display 19 in order to make the main phone 14 communicate again (5235) and release the hold (5235).
236), the transfer process ends. [00221 When the call control unit 17 recognizes that the call is on-hook in 5234, it controls the audible display 110 to emit a ring tone in order to emphasize to the base phone 14 that there is a held call (S237). When the call control unit 17 detects the on-hook operation of the parent telephone or the input of the hold key (S238), it clears the display 19 (5239), stops the ringtone (5240), and releases the hold (S241). In this manner, when the main telephone 14 becomes in a busy state again, the transfer process is terminated. [0023] When the transfer by the wireless control unit 16 fails in 5208, that is, when the wireless line cannot be connected to the slave phone 119 due to a predetermined wireless procedure, or when the wireless processing circuit 11
When the carrier off of the slave phone 119 is detected by 2,
A message is displayed on the display 19 to the effect that the child telephone cannot be called and the transfer has failed (S209). An example of the display is shown in FIG. 10(a). The user is also informed that one of the causes of the transfer failure is likely to be that the slave phone is not powered on. Then, the call control unit 17 checks the hook state (S210). At this time, if it is in an off-hook state, the memory 129 is referenced to check whether the call 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 (5212), and after a few seconds, the transfer failure message is displayed on the display 19. Clear the display (5213) and end the process. [00241 When the call control unit 17 determines that the call is on hold in 5211, it controls the audible display 110 and calls the parent phone 1.
4 (S214). Then, input of the hold key (215) and on-hook operation (216)
) wait for the event. [0025] Furthermore, when the input of the hold key is confirmed in step 5215, the call control unit 17 stops the busy tone.
8), clear the display 17 (5219), release the hold by the switching circuit 118 and the audible display 110 (220), and place the main telephone 14 in the busy state again to end the process. Further, when the private branch exchange 12 puts the application on hold, a hold release command is sent to the private branch exchange 12 to release the hold. [0026] If on-hook operation is confirmed in 5216, stop the busy tone. 5217), 32
Perform the following actions. [0027] On the other hand, when the input of the transfer key is detected in 5205, it is determined whether the transfer key is on hold (S22
3) If it is recognized that the request is on hold, the processing from 8233 onwards is performed. Further, if it is recognized in 5223 that the child phone is not on hold, the wireless control unit 16 stops calling the child phone in order to continue calling the parent phone 14 (522).
4) Clear the display 19 (5225) and end the transfer process. [0028] When an off-hook operation of the main telephone 14 is detected in 5206, the processing in 8242 and subsequent steps is performed. [0029] When the input of the hold key is detected in 5207, it is determined whether or not the hold key is on hold at that time (S
221). If the call is on hold, perform the transfer interruption process below 8242, while if it is not on hold, put the call on hold and send 52.
22), enters the waiting state again for events 5204 and below. [00301] Next, the incoming call processing of the main phone wireless control unit 16 will be explained in accordance with FIGS. do). [00311 The wireless control unit 16 of the parent phone performs carrier sense of the call channel using the wireless processing circuit 112 (S301), and waits for a request to call the slave phone from the call control unit 117 (S302). Therefore, if there is a request for calling the slave telephone, the wireless processing circuit 112 carries out a control channel (S303), and transmits an incoming call signal to the slave telephone by specifying a communication channel. 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 a notification of completion of channel switching from the slave phone 119 (S307), or a call stop request from the call control unit 17 (S308), or the timer times out (S309).
Wait for any event. (S3
11). Furthermore, it controls the wireless processing unit 112 to turn on the carrier of the communication channel (5318), and issues a bell ring request to the child telephone (5319). Then, the call controller 17 is notified of the start of calling the slave phone. Therefore,
Receipt of slave phone off-hook by wireless processing circuit 112 (
S321), detection of child phone carrier off by the wireless processing circuit 112 (S322), or request to stop calling from the call control unit 17 (S323). (0033) When the wireless processing circuit 112 receives the off-hook of the slave phone in 5321, the wireless control unit 16 notifies the call control unit 17 of the off-hook of the slave phone (
S326), the process ends. [003418322 When the wireless processing circuit 112 detects that the carrier of the slave phone is turned off, the wireless controller 16 controls the wireless processing circuit 112 to release the call channel (5327) A carrier-off notification is performed (S328), and the process ends. [0035] When the call control unit 17 issues a call stop request in 5323, the wireless control unit 16 requests the wireless processing circuit 1
12 to send a call channel release request to the slave phone 119 (5324), and release the call channel (532).
5) End the process. [0036] When the call control unit 17 issues a call stop request in 3308, the wireless processing circuit 112 receives a channel switching completion notification from the slave phone 119 (S3
12) or wait for a timer timeout (S313) event. [0037] When the wireless control unit 16 receives the completion of channel switching from the slave phone 119 at 5312, it resets the timer (S314). Then, it controls the radio processing circuit 112 to turn on the carrier of the communication channel 5315), sends a communication channel release request to the slave phone 5316), and releases the communication channel S317.
), the process ends. [0038] On the other hand, when a timeout of the timer is detected in 5313, the process is immediately terminated. [0039] Further, when a timeout of the timer is detected in 5309, the call control unit 17 is notified of the call failure (S310), and the process ends. [00401 Next, the incoming call processing of the slave phone will be explained with reference to FIG. [00411 When the control unit 120 receives an incoming signal from the base telephone by the wireless processing circuit 124 (S401), it performs carrier sense of the channel specified in the incoming signal (S402) and switches to the speech channel (S403).
). Then, turn on the carrier (5404) and notify the master phone that channel switching is complete (S405).
. Then, it waits for a bell ringing request (8406) or a speech channel release request (S407) from the parent telephone. [00421 When the wireless processing circuit 124 receives a bell ringing request from the parent telephone in 5406, the control unit 120 makes a ring tone sound (S408), and inputs the call key (
S409), or a call channel release request (S410)
) wait for the event. [00431 When the input of the call key is detected in 5409, the control unit 120 stops the ringing tone (5413)) The wireless processing circuit 124 notifies the main phone 14 of off-hook (S414), and ends the process. [0044] When a call channel release request is received from the base telephone 14 in 5410, the ring tone is stopped (S411
), the communication channel is released (5412), and the process ends. [0045] When a call channel release request is received from the base telephone 14 at 5407, the processing from 8412 onwards is performed. [0046] In the above embodiment, the fixed equipment consisted of the private branch exchange 12 and the main telephone 14, but the main telephone 14
The configuration is to separate the national body into two parts, such as one in which the part related to wireless control is in the form of an adapter, and the other part in the telephone body, and to connect these two national bodies as necessary. It can also be used as a master phone. [00471

[Second Embodiment] As shown in FIG. 11, in this embodiment, in the transfer process of the call control unit 17 of the main telephone 14, a judgment is made between 8201 and 8202 whether the call is on hold or not (S276). , if the call is not on hold (step 5277), i.e., switching circuit 118;
The line interface 111 controls the audible display 110
Send hold music to the other party via . Furthermore, instead of the processing below 8214, a beep sound is sounded on the main phone 14,
The display may be cleared after a few seconds by canceling the hold and placing the call again with the main phone. In this way, even if a request to start transfer is made and the call is immediately put on hold, if the slave telephone fails to call, the hold can be canceled without forcing the user to perform an operation. [0048] [Third Embodiment] Furthermore, the determination at 5226 and the processing at 8227 may be deleted, or the child suspension processing at 5227 may be selectively set to be suspended. [0049] If deleted, it is determined whether the call is on hold instead of 8226.227, and if the call is on hold, the hold is forcibly released. [00501 Also, if you do not delete it, 8246 and 524
7, it is determined whether the call is on hold, and if the call is on hold, the processing from 8247 onwards is performed. [00511 On the other hand, if the call is not on hold, or even if the hold is forcibly released, the call control unit 17, upon detecting off-hook of the child phone 119, will notify the other party who is talking to the parent phone from now on. After a beep is heard on the audible display 110 indicating that the other party is changing, the call is connected to the child telephone. Furthermore, the main phone makes a beep sound, indicates that the slave phone is talking, and sends out a busy tone. Thereafter, when the parent telephone performs an on-hook operation, the transfer process is terminated, so that the call can be transferred from the parent telephone to the slave telephone without going through the process of holding the call. Furthermore, when connecting a transferred call to a slave telephone, it is possible to display a message indicating that the communication partner will be switched for the parent telephone and the call. [0052]

[Fourth Embodiment] In the above embodiments, the fixed device consisted of the private branch exchange 12 and the main telephone 14, but as shown in FIG. 12, the private branch exchange 12 and the main telephone 14 are integrated as a wireless interface 130. You can also do this. [0053] In this case, the main control unit 1 of the private branch exchange 12
29 detects a transfer request from the extension telephone 133 via the extension interface 131, and transmits the transfer request via the wireless interface 1.
30 to call the slave telephone 119. [0054] Also, the extension telephone 133 is another extension telephone,
Alternatively, while the cordless telephone 119 is talking to an outside line, the call may be transferred to another extension telephone line or outside line. [00551 The operation of this embodiment is shown in FIG. [0056] When the transfer key of the extension telephone 133 is pressed during a call, the control unit 15 of the extension telephone 133 places the transfer key press code on the control channel by the line interface 111, and transmits the transfer key press code to the extension interface 1 of the private branch exchange 12.
Send to 31. Further, the dial number specifying the transfer destination is also sent as a numeric key press code. [0057] 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, and controls the switch circuit 134 to determine whether the transfer key is pressed. Connect the other party on the extension telephone 133 to the sound source 132,
A hold tone is sent out (step 5502). Further, the extension or outside line specified by the numeric key press code is identified, and it is determined whether the extension or outside line can be called (step S503). Then, if the call is possible, the main control unit 129 cancels the call (step 5).
504). Furthermore, a control command is sent via the switch circuit 134 and the extension interface 131, a beep sound is sent to the extension telephone 133, and a message that the call cannot be made is displayed on the display section 129 (step 5505). A call is possible when the extension number specified by the pressed numeric keypad does not exist in the first place, when the extension telephone is malfunctioning and no answer command is returned even if a call command is sent, or when a call is in progress. Cases etc. Furthermore, even if a call is in progress, if it is possible to make a call during a call, it is determined that the call is possible. In the case of an outside line, the outside line interface 135 may detect a busy tone or a ringback tone, and if no ringback tone is detected, it may be determined that the call cannot be made. Further, the determination in step 5503 may not be made in the case of external line transfer. [0058] Furthermore, when transferring to the cordless telephone 119, the main control unit 129 controls the wireless interface 130 to call the cordless telephone 119. Then, if the wireless interface 130 cannot detect a response from the cordless telephone 119, it 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. [0059] Then, in step 5506, the main control unit 129 releases the hold and reconnects the line. That is, the main controller 129 controls the switch circuit 134 to transfer the transferred call connected to the sound source 132 to the extension telephone 133 again.
Connect to. [00601 Also, if it is determined in step 5503 that the call is possible, the main control unit 129 calls the transfer destination and performs an off-hook operation of the telephone that performed the transfer operation (step 5507) or an off-hook operation of the transfer destination (step S508) ). When the main control unit 129 detects an off-hook operation of the transfer source via the extension interface 131 in step 5507, it cancels the hold and reconnects the line (step S506). [00611 At step 5508, the main control unit 129
Similarly, when off-hook of the transfer destination is detected, the switch circuit 134 is controlled to connect the extension telephone 1 that performed the transfer operation.
Connect 33 with the called party (step 5509)
. Then, when the transfer requester goes off-hook after notifying the transfer destination responder by phone that the transfer will be transferred, the main control unit 129
controls the switch 134 to connect the call held in step 5502 to the transfer destination (step 5510). [00621 Note that when the off-hook of the transfer destination is detected in step 5508, if the transfer source is off-hook, the held call and the transfer destination are connected without connecting the transfer source and the transfer destination. [0063] The same applies when you answer an incoming external call on the extension telephone 133 and the other party is using a facsimile, and the call is transferred to one of the plurality of facsimiles (including a cordless facsimile) accommodated in the extension. . [00641 In the above explanation, the case where a transfer is requested using the extension telephone 133 has been explained, but the cordless telephone 119
When requesting transfer from the antenna 113, the wireless interface 130, the main control unit 129 sends the transfer request to the
It is detected via the switch circuit 134. By doing so, it is possible to control in the same way when transferring from the cordless telephone 119 to another cordless telephone or an extension telephone. [0065] Also, in step 5503, the main control unit 129
Since the reason why the call cannot be made can be identified, in step 5504, the extension telephone that requested the transfer displays the fact that the call cannot be made and the reason. That is, if the extension number specified by the extension telephone that requested the transfer does not exist, that is, if it is not registered in the built-in memory, a display is displayed to notify that the extension number has been input incorrectly. Further, if a response to the calling command is not returned due to a failure, intermittent operation, etc., a display is displayed to notify the failure of the transfer destination. If the transfer destination is busy, a display is displayed to notify that the transfer destination is busy. Also, if a wireless line cannot be connected when calling a cordless telephone, a message to that effect is displayed. [0066] The transfer requester looks at the display, and if there is an input error, re-enters the input, or if the call is busy, inputs another extension number. If it is broken, you can request it to be repaired later. [00671 The above explanation is for the case of transfer, but it may be displayed in the same way when transfer is not possible and it is a normal call. [0068]

According to the present invention, it is possible to reduce the operator's processing operations when the transfer destination cannot be called at the time of transfer, and to prevent call disconnections due to erroneous operations.

[Brief explanation of the drawing]

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

FIG. 2 is a flow diagram of transfer processing (1) of the fixed device according to the first embodiment.

FIG. 3 is a flow diagram of transfer processing (2) of the fixed device in the first embodiment.

FIG. 4 is a flow diagram of transfer processing (3) of the fixed device in the first embodiment.

FIG. 5 is a flow diagram of transfer processing (4) of the fixed device in the first embodiment.

FIG. 6 is a flow diagram of transfer processing (5) of the fixed device in the first embodiment.

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

FIG. 8 is a flowchart of incoming call processing (2) of the fixed device according to the first embodiment.

FIG. 9 is a flow diagram of incoming call processing of the mobile device according to the first embodiment.

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

FIG. 11 is a flowchart of transfer processing of a fixed device according to a second embodiment.

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

FIG. 13 is a flow diagram of transfer processing in the fourth embodiment.

[Explanation of symbols]

14 Main phone 15 Control section 19 Display 119 Child phone

[Figure 2]

[Figure 5]

[Fig. 8] [Fig. 11 Continuation of the front page (72) Inventor Sat 1) Shinji Canon Co., Ltd., 3-30-2 Shimomaruko, Ota-ku, Tokyo (72) Inventor Tsukumi Arai 3 Shimomaruko, Ota-ku, Tokyo No. 30-2 Canon Co., Ltd. (72) Inventor Shigeru Karaki No. 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Co., Ltd.

Claims (9)

[Claims] 1. A communication control system comprising: calling means for calling a transfer destination based on a transfer request for a call in progress; and control means for making a transfer call and re-answering when the calling means cannot make a call. Device. 2. The communication control device according to claim 1, wherein the control means stops the calling by the calling means when the line cannot be connected to the terminal to be called by the calling means. 3. The communication control device according to claim 1, wherein the control means stops the calling by the calling means when the terminal to be called by the calling means is busy. 4. Holding means for putting a line in use on hold based on a transfer request, calling means for calling a transfer destination, and control means for canceling the holding by the holding means when the calling means cannot make a call. A communication control device comprising: 5. The control means according to claim 1, when a line cannot be connected to a terminal to be called by the calling means, or
5. The communication control device according to claim 4, further comprising control means for releasing the hold by the holding means when the terminal to be called is busy. 6. A communication control device comprising: calling means for calling a transfer destination; and holding means for holding the transferred call when the calling means succeeds. 7. Calling means for calling a transfer destination based on a transfer request; and upon detecting an off-hook operation of a transfer source telephone during a call by the calling means, stopping the call by the calling means and releasing the transferred call from hold. What is claimed is: 1. A communication control device comprising a control means for controlling. 8. A communication control device comprising: calling means for calling a transfer destination; and control means for causing the calling means to call the transfer destination without putting the transfer call on hold. 9. The communication control device according to claim 8, wherein the control means notifies the transfer call of connection switching when connecting the transfer call to a transfer destination.