JP2807770B2 - Telephone device and incoming call notification method during communication - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device having a notification unit for notifying an incoming call during communication and a method for notifying an incoming call during communication.

(Prior Art) Conventionally, a telephone having a function of receiving an incoming call signal during a call is, for example, a call waiting service (NTT
Service name), the central office exchanges a notification tone on the call line, so if you have subscribed to the call waiting service, you will receive an unconditional call alert tone when there is an incoming call from another party during a call. It was audible. On the other hand, the incoming call notification service of a digital line which is now becoming popular is that when a telephone receiving a call receives an incoming call, the central office exchange sends a control signal to the telephone, and the telephone exchanges this signal regardless of the caller's number. This is to notify the operator of the incoming call by sound according to the control signal.

Further, the incoming call notification means during a call in a conventional PBX (digital private branch exchange) is configured as shown in FIG. 13 and FIG. While the extension terminal 33 (ISDN terminal) of the PBX 32 and another extension terminal 34 (ISDN terminal) are in a call, the extension terminal
When there is an incoming call to the PBX 32 addressed to 33, a SETUP (call setup) message is sent via the D channel of the ISDN office line 35. P
The BX 32 receives the SETUP message at the ISDN central office line interface circuit (BRT) 36. The BRT 36 notifies the central processing unit (CC) 38 via the control line 37 that the SETUP message has been received from the ISDN 31. The CC 38 knows from the information of the information request included in the SETUP message that the extension terminal that should receive the call is the extension terminal 33 that is talking. CC38 is a call number (CR2) different from the call number (CR1) of the call that the extension terminal 33 is talking on (Fig. 14).
To instruct the ISDN extension interface (BRI) 39 via the control line 37 to transmit the SETUP message to the extension terminal 33. The BRI 39 sends a SETUP message of CR2 to the extension terminal 33 to notify that there is an incoming call during a call. Extension terminal 33
When the SETUP message is received, it knows that there is another incoming call during a call, and sends an ALERT (calling) message to the PBX 32 to accept the call and notify that it is being called. The PBX32 receives the ALERT message on the BRI39, and the BRI39 confirms that the ALERT message has been received on the control line 37.
Notify CC38 via. Upon receiving the notification, the CC 38 instructs the BRT 36 via the control unit 37 to transmit an ALERT message to the ISDN 31. BRT36 receiving the instruction ALERT to ISDN31
Send a message. Thereafter, when the call of CR1 is terminated, the extension terminal 33 performs a disconnection recovery procedure (DISC (disconnection), REL (release), REL COMP (release completion) in FIG.
Release the call. That is, when the call in progress (call number CR1) ends, the extension terminal 33 performs DISC to disconnect the call.
Send a (disconnect) message to the PBX32. Upon receiving the DISC message of the call number CR1 from the extension terminal 33, the PBX 32 releases the call to the extension terminal 33 in order to release the call.
Send a message to the other party's extension 34
Send a DISC message and switch TSW41 to BT
(Busy tone) is transmitted. Upon receiving the DISC message, the extension terminal 34 sends a REL message to the PBX 32 to release the call.
Send to When the PBX 32 receives the REL message, it stops sending BT (busy tone), transmits a REL COMP (release complete) message to the extension terminal 34, and releases the call between the PBX 32 and the extension terminal 34. When the extension terminal 33 responds to the incoming call of CR2 after releasing the call of CR1, the extension terminal 33 sends a CONN (response) message to the PBX3.
Send to 2. The PBX 32 receives the message on the BRI 39 and notifies the CC 38. When the CC 38 instructs the BRI 39 to transmit a CONN ACK (response confirmation) message to the extension terminal 3, the BRI 39 transmits the CONN ACK message to the extension terminal 33. When the CC 38 instructs the BRT 36 to transmit a CONN (response) message to the ISDN 31, the BRT 36 transmits the CONN message to the ISDN 31.

(Problems to be Solved by the Invention) However, when the telephone using the digital line receives the incoming call notification signal (control signal) during a call, the telephone inevitably notifies the operator of the reception by sound. As in the case of the analog line described above, since a sound is generated during a call, there is a case where it is troublesome. In view of the above drawbacks, it is also considered to visually display the incoming call notification on the display using a display, but during the call, the nerves are inevitably concentrated on the ears and the display change of the display may not be noticed. Many.

In particular, when a call during a call is originated by an operator, if the call is answered by an operator and the call with the caller is held and the call is held for a while, the caller is called "from there. It is very unpleasant to say, "I've sent the call but I'm going to put it on the way."

The present invention has been made in view of the above circumstances, and an object of the present invention is to respond to an incoming call during communication and make the other party uncomfortable in response to the incoming call during communication when the call during communication is originated by the operator. It is an object of the present invention to provide a telephone device and a method for notifying during a communication that a call can be prevented.

(Means for Solving the Problems) To achieve the above object, an invention according to claim 1 is a telephone device having a notifying unit for notifying an incoming call during communication, wherein a call during communication is transmitted from the telephone device And a notifying means for notifying the incoming call during communication in accordance with the result of the judgment by the judging means.

The invention according to claim 2 is the telephone device according to claim 1, further comprising a rejection unit that rejects a response to the incoming call during communication when the notification unit does not notify the incoming call during communication.

According to a third aspect of the present invention, the telephone device according to the first aspect further comprises a disconnecting unit that disconnects the call during communication when responding to the incoming call during communication notified by the notifying unit. .

According to a fourth aspect of the present invention, the telephone device according to the first aspect further comprises a holding means for holding the communicating party when responding to the incoming call notified by the notifying means. .

In the invention according to claim 5, when communication is already in progress at the time of the incoming call, it is determined whether or not the communication already performed at the time of the incoming call is originating from the telephone, and the communication is being performed according to the result of the determination. Incoming call notification is performed.

According to a sixth aspect of the present invention, in the communication incoming call notification method according to the fifth aspect, when the communication incoming call is not notified,
A response to the incoming call during communication is rejected.

According to a seventh aspect of the present invention, in the communication incoming call notification method according to the fifth aspect, when responding to the notified communication incoming call, the communication call is disconnected.

According to an eighth aspect of the present invention, in the communication incoming call notification method according to the fifth aspect, when responding to the notified communication incoming call, the communicating party is put on hold.

(Operation) In the invention of claim 1, it is determined whether or not the call being communicated is a call originated from the telephone device, and
The incoming call is notified according to the result of the judgment,
When the call during communication is originated by the operator, it is possible to prevent the calling party from feeling unpleasant in response to the incoming call during communication.

According to the second and sixth aspects of the present invention, if the incoming call is not notified, the response to the incoming call is rejected. Therefore, the caller of the incoming call generated during the communication must not respond to the incoming call. Can be notified.

According to the third and seventh aspects of the present invention, when responding to the notified incoming call during communication, the call during communication is disconnected, so that it is possible to prevent the other party from waiting while the call is connected. it can.

In the inventions of claims 4 and 8, when responding to the notified incoming call during communication, the communicating party is put on hold, so that communication with the held party can be resumed later.

According to the fifth aspect of the present invention, when communication is already in progress at the time of the incoming call, it is determined whether or not the communication already performed at the time of the incoming call is originating from the telephone, and the communication is performed according to the result of the determination. Since the notification of the incoming call is made, when the call during communication is originated by the operator, it is possible to prevent the communication partner from feeling uncomfortable in response to the incoming call during communication.

FIG. 1 is a schematic block diagram of a telephone to which an embodiment of the present invention is applied. In the figure, 1 is a telephone, 2 is a communication line connected to ISDN, and 3 is a driver / receiver.
Reference numeral 4 denotes a channel demultiplexing circuit which separates a signal from the communication line into a so-called B channel (communication channel) and a D channel (control channel). It multiplexes with the D channel. 5 is a B channel signal line, 6 is a D channel signal line,
Reference numeral 7 denotes a CODEC (abbreviation of coder-decoder), which converts an audio digital signal on a B channel (communication channel) into an analog signal, and converts an audio analog signal from the handset 8 into a digital signal. . 9 is CPU, 10 is CPU
Memory for writing / reading by 9 and 11 for CODEC7
, 12 is a speaker, 13 is a key input unit, 14
Denotes a display unit such as a liquid crystal or LED.

Normally, the communication line 2 has two B channels (communication channels) in the case of ISDN. However, the telephone of this embodiment connected to this is a single B as shown in FIG.
The configuration uses only the channel. It is assumed that the user of the telephone 1 is in a call with a partner (not shown) via the communication line 2. When a third party different from the other party calls the telephone 1, the central office exchange (not shown) of ISDN sends a message for calling the telephone 1 via the D channel because there is an empty B channel. CPU 9 is driver / receiver 3,
When this signal is received through the channel multiplexing / demultiplexing circuit 4 and the D-channel signal line 6, since only the B channel is being used for communication, the sound source 11 is activated and the speaker 12 emits a ringtone during communication. The operator of the telephone 1 listens to the incoming call tone from the speaker while talking on the handset 8. In the flowchart of FIG. 2, whether or not to execute the ringing tone during a call is designated and input from the key input unit 13. When there is a call message from the communication line 2 to the telephone 1, the CPU 9 receives the call message via the driver / receiver 3, the channel demultiplexing circuit 4, and the D channel signal line 6 (step S1). If a call is not currently being made (step S2), a normal ring tone signal from the sound source 11 is sent to the speaker 12 to sound a ring tone (step S3), and a response such as off-hook is detected (step S3).
S4) A response message is transmitted to the communication line 2 via the D channel signal line 6, the channel demultiplexing circuit 4, and the driver / receiver 3 (step S5). Thereafter, a call is made between a call partner (not shown) and the user of the telephone 1 via the communication line 2, the driver / receiver 3, the channel demultiplexing circuit 4, the CODEC 7, and the handset 8.

On the other hand, if the telephone call is currently being made in step S2, the contents of the memory 10 are read out (step S6), and it is determined whether or not the content designated and input in advance specifies or does not permit ringing during the call (step S6). S7). If it is specified that the ringtone during the call is not permitted, a message for rejecting the response to the incoming call in step S1 is transmitted to the communication line 2 (step S8).

On the other hand, if the ringing during call is designated in step S7, a signal for the incoming call during the call, which is different from the normal ringtone in the sound source 11, is sent to the speaker 12 to ring the ringtone during the call (step S9). When a predetermined key input for responding to an incoming call is detected (step S10), a message for disconnecting the current call is sent to the communication line 2 (step S10).
Along with S11), a message corresponding to the incoming call is transmitted (step S12).

FIG. 3 is a schematic block diagram of another telephone, in which B channels B1 and B2 for communication (for communication) are used for communication and data communication, respectively. In this figure, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. A speed matching circuit 15 converts the processing speed of the external data terminal device 17 and the signal speed of the B2 channel (generally 64 Kbps) to match them. 16 is an interface driver for RS232C etc.
A receiver 18 is a B1 channel signal line allocated for speech communication, and 19 is a B2 channel signal line allocated for data communication.

FIG. 4 is a flowchart showing the operation of the telephone shown in FIG. That is, when there is a call message from the communication line 2 to the telephone set 20, the CPU 9 transmits the call message via the driver / receiver 3, the channel demultiplexing circuit 4, and the D-channel signal line 6, as in step S1 of FIG. Receive (Step S13). Next, it is identified whether the paging message requires a call or a data communication (LLC: lower layer compatibility) (step S1).
4) If the call is requested, step S2 in FIG.
The process proceeds to the same routine as that described below (steps S2 to S12). On the other hand, if data communication is requested in step S14, if data terminal device 17 is communicating (step S14).
S15), send a call rejection message to the communication line 2 (step S8), and if not communicating (step S15), send a response message to the communication line 2 (step S16) and activate the data terminal device 17 (step S16). (Step S17), communication line 2, driver / receiver 3, channel demultiplexer 4, speed converter 15, RS232C, driver / receiver 16
Data communication is performed on the B2 channel 19 via the.

Next, examples of the present invention will be described. This embodiment is applied to a telephone having the same configuration as that of FIG. 1, and the embodiment will be described below with reference to FIG.

A feature of the present embodiment is that, when a call during a call is a call generated by a call from an operator of the telephone, the ringtone during the call is not sounded. When a call is generated by calling the telephone, the CPU 9 stores the fact in the memory 10. FIG. 5 is a flowchart showing a procedure for implementing this embodiment. Telephone 1 from communication line 2
When there is a call message, the CPU 9 receives this via the driver / receiver 3, the channel demultiplexing circuit 4, and the D-channel signal line 6 (step S21). If a call is not currently being made (step S22), a normal ring tone signal from the sound source 11 is sent to the speaker 12 to sound a ring tone (step S22).
S23), if a response such as off-hook is detected (step S2)
4) A response message is transmitted to the communication line 2 via the D channel signal line 6, the channel demultiplexing circuit 4, and the driver / receiver 3 (step S25).

On the other hand, if a telephone call is currently in progress between the communication partner (not shown) and the user of the telephone 1 via the communication line 2, the driver / receiver 3, the channel demultiplexing circuit 4, the CODEC 7, and the handset 8 (step S22), Read memory 10 (step S
26) It is determined whether or not the call in progress is originating from the telephone 1 (step S27). If the call is not an outgoing call, a ringtone during a call is sounded to the speaker 12 by the normal ringtone signal from the sound source 11 (step S28), and at this time, the display unit 14 simultaneously displays that there is an incoming call during the call, if necessary. When a predetermined key input for responding to the ring tone during the call is detected from the key input unit 13 (step S29), a disconnection signal for the call during the call is transmitted to the communication line 2 (step S30), and the call during the call is received. Is transmitted to the communication line 2 (step S31). On the other hand, step S27
If it is determined that the call in progress is a call originating from the telephone 1, a call rejection signal is transmitted to the communication line 2 (step S32), and the ring tone during the call is sounded. Also, it is prohibited to display the incoming call during the call on the display unit 14 as necessary.

FIG. 6 is a schematic block diagram of a telephone set 25 to which another embodiment of the present invention is applied. This telephone set has two B1 channels 21 and B2 channels 22 as communication channels. In the figure, portions having the same functions as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 6, reference numeral 23 denotes a switch for selectively connecting the B1 channel 21 to the codec 7 or the sound source 11, and 24 denotes a B2 channel 22 to the codec 7.
Or a switch for switching and connecting the sound source 1
It can be switched under the control of the CPU 9.

FIG. 7 is a flowchart showing a procedure for implementing this embodiment. The same steps as those in FIG. 5 are denoted by the same step numbers, and description thereof is omitted. In FIG. 7, when a call is made in step S22, it is assumed that the B1 channel 21 is used. Then, a tone is transmitted from the sound source 11 to the communicating party, that is, the B1 channel, and the hold tone is transmitted from the sound source 11 (step S33), so that the B2 channel 22 is used to start talking with the new receiving party (step S33).
S34).

Then, when the call with the new incoming call partner ends, the operator of the telephone 25 performs a predetermined key operation from the key input unit 13.

When the CPU 9 detects that a predetermined key operation is performed while answering the incoming call during the call, the CPU 9 sends a disconnection signal to the call on the B2 channel, stops sending the hold sound to the B1 channel, and stops the call on the B1 channel. Resume.

Although the above embodiment has been described with reference to a digital telephone as an example, the present invention can be applied to a key telephone apparatus capable of accommodating a digital line. In this case, the main device may perform the above control.

FIG. 8 is a schematic block diagram of the PBX, in which the same or corresponding parts as in FIG. 13 are denoted by the same reference numerals. In FIG. 8, 31 is an ISDN, 32 is a PBX, 33 and 34 are extension terminals (ISDN terminals), 35 is an ISDN office line, 36 is an ISDN curve interface circuit (BRT), 37 is a control line, and 38 is a central processing unit. , 39 and 40 are ISDN extension interfaces (BRI), 41 is a time-division switch, 42 is a calling number table for storing a calling number for each extension number, and a mode table for storing a calling notification mode for each extension terminal. Main memory (MM) for storing exchange programs, etc. 43 is a maintenance console for command registration of the calling number to notify the incoming call, command registration of the called number mode, and command registration of data required for the PBX32. (MC) and 44 are voice response devices (VMs) that respond by voice to the other party who does not notify the incoming call.

In FIG. 8, the incoming call notification mode for each extension terminal is MC
By inputting a command from 43, it is written to the mode table in MM42. The mode table is shown in FIG. In FIG. 10, 0 of the incoming call notification mode indicates a normal incoming call notification, meaning that all incoming calls during a call from the ISDN 31 to the corresponding extension terminal are notified to the extension terminal, 1 indicates a specific incoming call notification, During a call from ISDN31 to the corresponding extension terminal, an incoming call is notified only for an incoming call from the other party with a specific calling number.Other than that, the call is rejected to ISDN31, or the VM44 outputs voice. respond. The partner of the specific calling number in the response / incoming notification is the partner of the calling number that can be indexed from the calling number table as shown in FIG. Registration of the calling number in the calling number table is performed by inputting a command from the MC 43.

If there is an incoming call from the ISDN 31 to the extension terminal 33 while the extension terminals 33 and 34 are in a call, a SETUP (call setup) message is sent via the D channel of the ISDN office line 35. The PBX 32 receives the SETUP message on the BRT 36, and the BRT 36 notifies the CC 38 via the control line 37 that the SETUP message has been received. The CC 38 knows from the data of the information element included in the SETUP message that the extension terminal that should receive the call is the extension terminal 33 that is busy. CC38 is the mode table in MM42 (Fig. 10)
, The incoming call notification mode of the extension terminal 33 is read, and in the case of the normal incoming call notification, the incoming call is notified to the extension terminal 33 in a sequence as shown in FIG. 14 of the conventional example, and the call of CR2 is started after the call of CR1 ends.

When the incoming call notification mode is the specific incoming call notification, the CC 38 checks from the calling number table in the MM 42 whether there is any matching data of the incoming calling number in the registered data of the extension terminal 33. In some cases, an incoming call is notified to the extension terminal 33 in a sequence as shown in FIG.
After the call ends, start talking on CR2.

If no match is found, the RE
Sends a D COMP (release complete) message to ISDN31 and releases the call (CR2). In addition, as shown in FIG.
After a certain period of time has passed after the transmission of the (call) message, the voice response unit (VM) 44 transmits a CONN (response) message to respond to the incoming call (CR2). CC39 is TSW
41 is controlled to connect the VM44 to the information channel of the incoming call (CR2), and the VM44 is controlled to transmit a voice message and perform a voice response. The voice response message may be, for example, "I'm on the phone now. If you hear a beep, please talk about your business." The caller of the partner terminal who hears the voice response message and speaks the matter disconnects the call. When the partner terminal disconnects, the ISDN 31 sends a DISC (disconnect) message to the PBX 32. DISC message received
PBX32 ISDN RED (release) message to release call
Send to 31. ISDN31 which received the REL message is REL C
Send an OMP (release complete) message to the PBX 32 to release the call. When the PBX32 receives the REL COMP message, the call (CR
2) Release.

In the above explanation, the calling number table and mode table are
Although provided in the MM 42, it may be stored in a memory in the BRI 39, 40 or the BRT 36. The registration of the calling number and the incoming call notification mode was decided to be performed by MC43.
A method performed by 33, 34 may be used.

(Effects of the Invention) As described above, according to the present invention, when a call during communication is originated by the operator, the communication partner responds to the incoming call even though the call originated from the operator, and This has the effect of preventing an unpleasant feeling.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a telephone to which one embodiment of the present invention is applied, and FIG. 2 is a procedure in a case where whether or not to execute a ringtone during a call is designated and input from a key input unit 13 in advance. FIG. 3 is a schematic block diagram of another telephone, FIG. 4 is a flowchart showing the operation of the telephone shown in FIG. 3, FIG. 5 is a flowchart showing an operation procedure of one embodiment of the present invention, FIG. 6 is a schematic block diagram of another telephone to which the present invention is applied, FIG. 7 is a flowchart showing the procedure for implementing the other embodiment, FIG. 8 is a schematic block diagram of a PBX, and FIG. 9 is FIG. FIG. 10 is a table diagram showing a mode table in the PBX of FIG. 8, FIG. 11 and FIG. 12 are message sequence diagrams in the PBX of FIG. 8, and FIG. Schematic block of PBX to which the conventional method is applied FIG. 14 is a message sequence diagram for explaining the conventional method. 1, telephone, 2 communication line, 3 driver / receiver, 4 channel demultiplexing circuit, 5 B channel signal line, 6 D channel signal line, 7 CODEC, 8
... handset, 9 ... CPU, 10 ... memory, 11 ... sound source, 1
2 ... speaker, 13 ... key input section, 14 ... display section.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 1/00 H04M 1/24 H04M 1/58-1/62 H04M 1/66-1/78 H04M 3/42-3 / 58 H04M 11/00-11/10 H04Q 3/58-3/62

Claims (8)

(57) [Claims] 1. A telephone device having a notifying unit for notifying an incoming call during communication, further comprising: a judging unit for judging whether or not the call in communication is a call originating from the telephone device. The telephone device, wherein the notifying unit notifies an incoming call during communication according to a result of the determination by the determining unit. 2. The telephone device according to claim 1, further comprising a rejection unit that rejects a response to the incoming call during communication when the notification unit does not notify the incoming call during communication. 3. The telephone device according to claim 1, further comprising a disconnecting unit for disconnecting the call in communication when responding to the incoming call during communication notified by said notifying unit. 4. The telephone device according to claim 1, further comprising a holding means for holding the communicating party when responding to the incoming call notified by said notifying means. 5. If a communication is already in progress at the time of the incoming call, it is determined whether or not the communication already performed at the time of the incoming call is originating from the telephone, and according to the result of the determination, the incoming call during communication is determined. Incoming call notification method characterized by performing notification. 6. The communication system according to claim 5, wherein a response to the communication incoming call is rejected when the communication incoming call is not notified.
Incoming call notification method described. 7. The communication incoming notification method according to claim 5, wherein, when responding to the notified communication incoming call, the communication call is disconnected. 8. The communication incoming call notification method according to claim 5, wherein, when responding to said notified incoming call during communication, said communicating party is put on hold.