JP3421368B2 - Telephone equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone apparatus for receiving information that can specify a calling side when a call is received. 2. Description of the Related Art In US Pat. No. 3,904,830, a telephone number of a caller is transmitted from a caller in response to reception of an interrogation signal from the caller. Discloses a telephone device capable of displaying this telephone number. [0003] In addition, Nippon Telegraph and Telephone Corporation's "INS Net 64" and "INS Net 1500"
Among the DN services, there is a basic service called “caller ID notification”. In this service, the telephone number of the calling party is transmitted from the net to the called party. Displaying this number on the called party makes it easy to identify the calling party. [0004] In this type of conventional device, the telephone number of the calling party can be simply known.
Conversely, when making a call to the calling side, it is necessary to dial the telephone number one by one. Further, there are many cases where it is not possible to identify the person on the calling side only by the telephone number of the calling side. [0005] As a method of solving such a problem,
There is a method proposed by the present applicant in Japanese Patent Application No. 4-29956 filed on November 10, 1992. According to this method, a telephone number of a calling side sent at the time of an incoming call is stored, and automatic dialing by this telephone number is enabled, and the telephone number is previously stored in a speed dial memory. When the same as the stored telephone number, the information for identifying the other party stored in association with the telephone number in the speed dial memory is displayed, so that the other party who has received a call when absent can be easily identified. It can be specified and dialing to the other party can be easily performed. [0007] However, even in the above proposed method, it is still possible to specify the calling side for telephone numbers that are not registered in the speed dial memory in advance. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a feature of receiving a caller's telephone number and subaddress information transmitted from a line at the time of an incoming call. Receiving means, a call number memory capable of storing a plurality of the telephone numbers and the sub-address information received by the receiving means in association with each other, a display section for displaying the sub-address information in the call number memory, Means for selecting one of the sub-address information, and means for dialing a telephone number stored in the call number memory corresponding to the sub-address information selected by the selecting means. According to the first feature, it is possible to display the sub-address information sent at the time of receiving a call. According to the second feature, it is possible to automatically dial the calling party only by selecting the subaddress information sent at the time of receiving the call. [0013] According to the third feature, only the sub-address information in the case of not responding to the incoming call is stored and held. FIG. 1 is an external view showing an example of an ISDN-compatible telephone apparatus (1) to which the present invention is applied.
Denotes a handset, and (3) denotes a dial key portion for inputting a dial number or the like.
An asterisk key (4) and a sharp key (5) in which “*” and “#” are respectively described on the key tops are provided in addition to a numeric keypad for inputting a numerical value of 9. (6) is a display unit composed of, for example, a liquid crystal display unit, and displays the telephone number of the calling side sent at the time of receiving a call on the display unit. The display will be described later in detail. (7) and (8) are up and down scroll keys, and the display on the display unit (6) can be scrolled up and down by operating the keys.
(9) and (10) are up and down cursor keys, and the cursor (11) on the display unit (6) can be moved up and down by operating the keys. (12) is a clear key,
The key instructs to erase the display content on the display unit (6). FIG. 2 is a block diagram showing a circuit configuration of the present embodiment. In FIG. 2, (13) is a control unit composed of a microcomputer, (14) is a program memory, and the control unit (13) is a program memory. Based on the control program stored in (14), it controls each unit described below. Note that each unit described below and the control unit (13) are connected by a bus (15). (16) is an ISDN line, which has a "2B + D" configuration composed of, for example, two B channels of 64 kbps and one D channel of 16 kbps. This line is a relay station (ISDN network)
Is connected to other telephones or facsimile machines via. (17) is an S / I / F comprising a semiconductor integrated circuit μPD98201 manufactured by NEC Corporation, for example. 430 satisfies the physical conditions for data transmission such as the communication speed specified in layer 1. The S-I / F (17) converts the data transmitted via the bus (15) into a frame that can be transmitted to three channels of the ISDN line (16), and then transmits the frame to the line (16). And on the contrary, ISDN line (16)
The data for each frame transmitted via each channel is decomposed for each channel and transmitted to the bus (15). (18) LAPD (Lin) comprising a semiconductor integrated circuit μPD72305 manufactured by NEC Corporation, for example.
k Access Procedure on the
D-channel), and the LAPD is a control unit (1
Under the control of 3), exchange of control data called call control with another device is performed via the D channel. (19) LAPB (Lin) comprising a semiconductor integrated circuit μPD72107 manufactured by NEC Corporation, for example.
k Access Procedure Balance
ed), and the LAPB performs transmission and reception of audio data under the control of the control unit (13). Reference numeral (20) denotes an audio CODEC composed of, for example, a semiconductor integrated circuit HD81020 (or 81019) manufactured by Hitachi, Ltd. The audio CODEC converts an audio band signal input from the handset (2) into μ-la.
Conversion into a PCM-converted digital signal using the w-law coding (or A-law law coding) method, or conversely, decoding of the PCM-converted digital signal into a voice band signal and output to the handset (2) I do. Reference numeral (21) denotes a working memory composed of, for example, a semiconductor RAM (random access memory), in which variables and the like required when the control unit (13) controls the control operation are stored. Numeral (22) is a speed dial memory made up of, for example, a semiconductor RAM. As shown in FIG. 3, this memory stores a telephone number of the other party corresponding to each abbreviated number and the name of the other party specified by the telephone number. The other party information shown is stored. The information in the memory (22) can be arbitrarily set and registered by the user. The dialing of the other party's telephone number is performed by picking up the handset (2), depressing the asterisk key (4) of the dial key section (3) once, and then using the numeric keypad to enter a shortened number corresponding to the desired telephone number. You can do this by typing (23) is a call number memory composed of, for example, a semiconductor RAM, in which item numbers, destination information, subaddress information, corresponding abbreviated numbers, and incoming call dates and times are stored in association with each other as shown in FIG. . The above item number indicates the order of the incoming call, and the destination information is the telephone number of the calling side transmitted via the D channel at the time of the incoming call or the other party information specified by this telephone number as described later. The corresponding abbreviated number indicates the abbreviated number in the abbreviated dial memory (22) in which the same information as the telephone number or the like stored as the destination information is stored. It should be noted that the storage of "99" as the corresponding abbreviated number indicates that the same information does not exist in the abbreviated dial memory (22). The incoming call date and time indicates the date and time when there is an incoming call from the other party specified by the other party information, and this date and time is output from a clock circuit built in the control unit (13). A hook detector (24) detects whether the handset (2) is picked up for a call or not and sends the detection result to the control unit (13). Reference numeral (25) denotes a key input unit, which includes the dial key unit (3), up / down scroll keys (7) / (8), up / down cursor keys (9) / (10), and clear key (12). ). FIG. 5 is a schematic diagram showing general call control at the time of line connection between the two terminals TE1 and TE2 connected to the ISDN network NW. Before explaining the operation of the apparatus of this embodiment, FIG. The call control will be described. still,
Signal transmission and reception in this call control are all performed via the D channel. Now, when calling TE2 from TE1 with TE1 as the calling side and TE2 as the called side, first, TE1 has its own equipment in addition to the service information indicating whether the own apparatus is a facsimile apparatus or a telephone apparatus. The telephone number specifying the side, the telephone number specifying TE2, and call setting information such as subaddress information are transmitted to the NW as a SETUP signal. Note that the sub-address information is originally information for individually specifying a plurality of terminals connected to one telephone number, but the sub-address information does not necessarily need to transmit the specific information. Information or the like specifying the calling side may be transmitted. Since the network knows in advance the type of each terminal connected to the network, upon receiving the SETUP signal, the network determines whether or not the device types of the TE1 and TE2 are the same. If the two terminals are different,
DI indicating information indicating that connection is not possible (release completion information)
An SC signal (not shown) is returned to terminal TE1, and the SETUP signal from TE1 is invalidated. On the other hand, TE1 and TE
If it is determined that the device 2 is the same type of device, the NW returns call setting information indicating that the device is connectable to the terminal TE1 as a CALL PROC signal. However, the above NW is the actual NW
The terminal also knows the use status of the B channel of each terminal connected to the terminal. Therefore, even if the terminals TE1 and TE2 are devices of the same type, connection is impossible when all the B channels of the TE2 are in use. D indicating the information that
It returns an ISC signal (not shown) to terminal TE1. Further, the NW returns the above-mentioned CALL PROC when returning the information indicating that connection is possible to the terminal TE1.
In the signal, information specifying a B channel used for exchanging data (sound data, image data, etc.) between the terminal TE1 and the network NW is also returned. If the B channel identification information is included in the SETUP signal from the TE1 and transmitted, the SETUP
According to the data in the signal, if it is not included in the SETUP signal, the NW selects and returns an unused B channel connecting the TE1. When a CALL PROC signal indicating that connection is possible is returned to the terminal TE1, the NW subsequently proceeds to the terminal TE1.
2 transmits a call setting signal SETUP. This SWTUP
The signal is obtained by adding information for specifying the B channel used for exchanging data between NW and TE2 to the SETUP signal transmitted from TE1 to NW. still,
The telephone number specifying TE1 included in the SETUP signal transmitted from the NW to TE2 is determined at the time when TE1 is transmitted to the NW whether or not the telephone number is an accurate number for specifying TE1. It is determined by the NW, and when the number is not an accurate number, the NW rewrites the number to an accurate number. Terminal T that has received a SETUP signal from the NW
E2 determines whether or not the function required from this signal can be executed. If the function can be executed, it returns a CALL PROC signal indicating that it can be connected to the NW. Returns a DISC signal (not shown) indicating that connection is impossible. NW is a DI indicating that connection is impossible from TE2.
When the SC signal is received, a DISC signal indicating that connection is impossible is transmitted to TE1, and the connection between TE1 and TE2 is invalidated. On the other hand, when the CALL PROC signal indicating that the TE2 is connectable is returned to the NW, the TE2 informs the user that there is an incoming call, and also informs that the user is being notified. ALERT signal is transmitted to the NW. Upon receiving the ALERT signal from TE2, the NW transmits this signal to TE1. When the terminal TE2 becomes operable in response to the above notification, TE2
Transmits the response signal CONN to the NW, and starts communication with the TE1 after receiving the response confirmation signal CONN ACK from the NW. When the NW receives the CALL PROC signal indicating that connection is possible from TE2 and subsequently receives the ALERT signal, it transfers this to terminal TE1 and returns a CONN ACK signal to terminal TE2. Enables data communication between terminals. Thereafter, the terminals TE1 and TE2 exchange data via the B channel determined by the above call control. Note that this communication control is performed not by the LAPD (18) but by the LAPB (19). Next, the operation of the present embodiment will be described with reference to the flowcharts shown in FIGS. 6 and 7 show the control programs in the program memory (14). In step S1 of FIG. 6, the control unit (13)
From the network side via the ISDN line (16)
LAPD (18) determines whether an ETUP signal has been sent.
Is determined based on the signal from, and when it is not transmitted, the process proceeds to step S2 in FIG. In step S2, a hook detector (24)
It is determined whether or not the handset (2) is in the off-hook state in which the handset (2) is picked up, based on the detection result, and if it is determined that the handset (2) is not in the off-hook state, the process proceeds to S3. In step S3, it is determined whether or not an operation has been performed on a key of the key input unit (25). If it is determined that no operation has been performed, the process returns to step S1. That is, in a standby state in which there is no incoming call from the line (16) and there is no operation on the handset (2) and the key input unit (25), the control unit (13) circulates a loop consisting of steps S1 to S3. To process. On the other hand, if it is determined in step S1 that there is an incoming call, in step S4 it is determined whether connection is possible based on the SETUP signal transmitted as described with reference to FIG. 5, and if it is determined that connection is possible, LAPD (18) ), S-
CAL to ISDN line (16) via I / F (17)
An L PROC signal is transmitted, and a notification for notifying the user of the incoming call is performed.
The signal is transmitted to the ISDN line (16) via the LAPD (18) and the S / I / F (17). In the following S5 step, the telephone number of the other party (calling side) transmitted in the SETUP signal and information specifying the same and subaddress information (hereinafter, this information and the calling side telephone number) The number is generally called calling side information) is stored in the call number memory (23).
Specifically, first, it is determined whether or not the calling telephone number matches the other party's telephone number registered in the speed dial memory (22). The other party information stored in the dial memory (22) is stored in the other party information column of the call number memory (23), and the abbreviated dial memory (23) is stored in correspondence with the other party information stored in the other party information column. )
The stored abbreviated number is stored in the corresponding abbreviated number column of the call number memory (23), and the subaddress information is further stored in the subaddress information column. The date and time data at the time of the incoming call is stored in the incoming call date and time column of the call number memory (23).
The date and time data is read from a clock circuit (not shown) built in the control unit (13). On the other hand, if it is determined that the calling party telephone number does not match the other party telephone number in the speed dial memory (22), the calling party telephone number is stored in the other party information column of the calling number memory (23). Is stored in the corresponding abbreviated number column, for example, a numerical value "99" that does not match the abbreviated number in the abbreviated dial memory (22), and further, sub-address information is stored in the sub-address information column. At this time, data indicating the date and time when the incoming call is received is stored in the incoming call date and time column. The storing of the calling side information in the calling number memory (23) is performed in correspondence with the numerical value of the item number in the order of the incoming call. When the processing in step S5 ends, the processing proceeds to step S5.
Proceed to step 6. In step S6, it is determined whether the called party has answered. That is, the control unit (13) determines whether or not the handset (2) has been picked up in response to the notification performed in step S4 based on the output from the hook detector (24). In this determination, if it is determined that there is no response, the process proceeds to step S7. In this S7 step,
It is determined whether the incoming call has been completed. More specifically, if the calling party puts down the handset and terminates the call because the called party does not answer, a DISC signal indicating the end of the call is sent from the calling party to the called party via the ISDN network. Therefore, the presence or absence of this DISC signal is determined. If it is determined that the incoming call has not ended, the process returns to step S6. Therefore, the steps S6 and S7 are repeated unless the caller responds to the call and the caller does not terminate the call. If it is determined in step S7 that the incoming call has been terminated, the process proceeds to step S8. In step S8,
A message indicating that there is an incoming call such as "There was a call while absent" is displayed on the display unit (6), and a flag F indicating that the message is being displayed is displayed in the subsequent step S9. Is set to “0”. This flag F is set in the working memory (21). When the process in step S9 is completed, the process returns to step S1 and enters a standby state. Returning to step S6, if it is determined in this step that there is a response, the process proceeds to step S10. In this S10 step, the data of the destination information, the corresponding abbreviated number, the subaddress information and the called date and time stored in the call number memory (23) by executing the latest S5 step are deleted. Therefore, only the information corresponding to the incoming call for which the user did not answer is stored in the call number memory (23). In the following S11 step, it is determined whether or not the call has ended. Specifically, a hook detector (24)
It is determined whether or not the handset (2) is in an on-hook state in a standby state based on the output from
Until the on-hook state is reached, it is considered that the call is continued, and the step S11 is cyclically processed. If it is determined that the on-hook state has been reached, the process returns to step S1 to enter the standby state. Returning to the step S2 in FIG. 7, when the off-hook state is detected in this step, the control unit (1)
In 3), it is assumed that a calling operation is performed, and the process proceeds to step S12. The calling operation in step S12 includes: a. Method of inputting the other party's telephone number using only the numeric keypad b. A method of reading out the other party's telephone number from the speed dial memory (22) c. There are three methods, that is, a method based on the other party information in the call number memory (23). When the numeric keypad is input after the step S2, the control unit (13) regards the method as the above a. The digit string output from the key input section (25) according to this input is used as the other party's telephone number on the ISDN line (1).
The LAPD (18) is controlled so as to output as one data of the SETUP signal to the D channel of 6). When the asterisk key (4) and the numeric keypad are successively input following the process of step S2, the control unit (13) regards the method as described in the above b, and the asterisk key (4) The other party's telephone number stored in the abbreviated dial memory (22) is read out in correspondence with this number as the abbreviated number, and the LAPD (1
8) The D channel of the line (16) is output as one data of the SETUP signal. Further, when the asterisk key (4) is input twice consecutively following the processing in step S2, the control unit (13) regards the method as described in c above, and as shown in FIG. The caller's telephone number corresponding to the information indicated by the cursor (11) in the calling side information displayed on the display section (6) is read out from the call number memory (23) or the speed dial memory (22), The LAPD (18) outputs the data of the SETUP signal to the D channel of the line (16) as one data. When the other party responds to this call, the information in the designated call number memory (23) is deleted. Note that the display of the calling side information on the display unit (6) will be clear from steps S14 to S16 to be described later, and thus the detailed description is omitted here. When the process in step S12 ends, the process proceeds to step S13. In this S13 step, S
It is determined whether the call started based on the calling operation in step 12 has ended. Specifically, after the end of the step S12, the determination of the step S13 is repeated until the handset (2) is returned to the home position and the signal indicating that the hook detector (24) is in the on-hook state is output.
When the above signal is detected, the process returns to step S1 to enter a standby state. Returning to step S3, if it is determined that an operation has been performed in this step, the process proceeds to step S14. In this step S14, it is determined whether or not the flag F is "0". If it is "0", the process proceeds to step S15. In step S15, the call number memory (2
The call information in 3) is displayed on the display section (6) as shown in FIG. 1, and in the subsequent S16 step, the flag F is set to "1" to indicate that this display is being performed. Thereafter, the process returns to step S1. On the other hand, in step S14, the flag F
If it is determined that is not “0”, the process proceeds to step S17. In step S17, an operation corresponding to the key whose operation was detected in step S3 is executed. As an example, when the up and down cursor keys (9) and (10) are operated in the display state of the display unit (6) shown in FIG. 1, the cursor (11) on the display unit (6) moves up and down and scrolls up and down. When the keys (7) and (8) are operated, the display on the display (6) is scrolled, and the data in the call number memory (23) is sequentially displayed on the display (6). When the clear key (12) is operated, the call number memory (2) indicated by the cursor (11) on the display section (6).
3) Delete the calling party information in. Thereafter, the process returns to the step S1 and enters a standby state. According to the present invention, the sub address information sent as one data of the SETUP signal at the time of an incoming call can be displayed on the display unit, so that the calling side can see the calling side at a glance as the sub address information. By registering the name, message, and the like of the calling side that can be identified, the calling side can immediately and easily identify from whom the incoming call was made when the user was absent. Further, the subaddress information sent at the time of the incoming call is stored in the call number memory together with the telephone number of the calling side, and at the time of calling, only the subaddress information is selected and stored in this memory in association with the above subaddress information. Since a call can be made using the telephone number provided, even if there is an incoming call when the user is out of the office or the like, it is possible to easily call back the call destination after returning home. Further, when the user responds to the incoming call, the subaddress information stored in the call number memory at the time of the incoming call is also deleted from the memory, so that only the incoming call that cannot be answered can be reliably determined. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external plan view showing an embodiment of the present invention. FIG. 2 is a block diagram showing a circuit configuration of the embodiment. FIG. 3 is a schematic diagram illustrating a shortened dial memory according to the present embodiment. FIG. 4 is a schematic diagram showing a call number memory of the present embodiment. FIG. 5 is a schematic diagram for explaining call control in an INS network. FIG. 6 is a flowchart illustrating the operation of the present embodiment. FIG. 7 is a flowchart illustrating the operation of the present embodiment. [Description of Signs] 2 Handset 6 Display unit 9 Up cursor key 10 Down cursor key 13 Control unit 22 Abbreviated dial memory 23 Call number memory 24 Hook detector

Continuation of front page       (56) References JP-A 1-248853 (JP, A)                 JP-A-2-50552 (JP, A)                 JP-A-3-14348 (JP, A)                 JP-A-4-123646 (JP, A)                 JP-A-4-199953 (JP, A)                 JP-A-6-97997 (JP, A)

Claims (1)

(57) [Claims] [Claim 1] Receiving means for receiving a calling party's telephone number and subaddress information transmitted from a line at the time of an incoming call;
A call number memory capable of storing a plurality of the telephone numbers and the sub address information received by the receiving means in association with each other; a display unit for displaying the sub address information in the call number memory; A telephone apparatus comprising: means for selecting one; and means for dialing a telephone number stored in the call number memory corresponding to the sub-address information selected by the selecting means.