JPS63144645A - Memorandom communication system - Google Patents

Abstract

PURPOSE:To send a simple memorandum to the opposite party in place of a telephone call by using a signal channel if the opposite party is busy or absent in making a call to the said party so as to give data information between users. CONSTITUTION:If a telephone set 22 makes a phone call to a telephone set 20 while the telephone set 20 and a telephone set 21 are talking, a busy tone is sent to the telephone set 22 through an information channel and listened to by the operator C. When the operator C uses a transmission message in place of the phone call, a memory transmission/readout key 11 is depressed. Thus, the selected message is given to a data area between users in a transmission message memory 6 via a control circuit 12, sent to the telephone set 20 by using a signal channel and stored in a reception message memory 15 and then displayed on a display device 7. That is, in making a call, if the opposite party is busy or absent, the signal channel is used to send a simple memorandum to the opposite party as the data information between users in place of a telephone call.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention enables notification of requirements by alternative means such as memos or messages when the other party is busy or absent and cannot talk directly with the other party in telephone communication. It is related to communication methods.

(Prior art) Conventionally, in a telephone, for example, when C wants to call A and A is busy with B, a busy tone is sent from the network to C, so C cannot talk to A. .Furthermore, when A is absent, only a ringback tone is sent to C.

(Problem to be solved by the invention) In such a case, a) Generally, C waits for a while and calls A again. In this case, if A is still on the phone or absent, C will have to call again. There are also times when you forget to call back.

There was a drawback.

b) There is also a call waiting service that interrupts the call and makes an incoming call, but in this case, i) the person receiving the call (in this case A) must subscribe to this service, and ii) It is important to have a call with B, and even if you don't want to be interrupted, the call will interrupt and interrupt your conversation.

There was a drawback.

In such cases, if you can send a simple memo, you can convey your intentions even if the other party is busy or absent.

In order to solve these drawbacks, the present invention uses a signal channel to send a simple memo to the other party as data information between users when the other party is busy or absent. The purpose is to provide a memo communication method that allows you to send memos to anyone.

[Means for solving problems]

The memo communication system according to the present invention includes a message memory for sending, a message memory for receiving, a memo sending/reading key for sending and reading messages in both memories, and a caller's telephone number sent from the network. Display means for displaying the number and message sent from the other party, and a designated position of the signal that transmits the message in the message memory for transmission to the other party's home equipment in the signal channel when the memo sending/reading key is pressed. using a digital telephone equipped with a control means for configuring and transmitting a signal and for analyzing and displaying on a display means when a signal is present at a specified position in a signal of a signal channel from the network;
When the memo sending/reading key is pressed, the message stored in the sending message memory is configured at the designated position of the signal to be transmitted to the other party's home equipment on the signal channel, and is sent to the network together with the disconnection signal by the control means. In the control means of the other party's digital telephone, when there is a message sent from the sending side at a specified position, it is stored in the receiving message memory, and when the memo sending/reading key is pressed, the stored message is displayed on the display means. It is to be displayed.

(Function) In the memo communication method according to the present invention, if the caller is busy when making a call, by pressing the memo send/read key, the message stored in the message memory for sending is sent out. and display it on the other party's display means.

Furthermore, when the user wants to display a message that was received while the user was away, the message in the message memory for reception is made to appear on the display means by pressing the memo sending/reading key.

Embodiment In an embodiment of the invention, the subscriber line transmission is digitized and has an information channel and a signaling channel, in which the data is delayed end-to-end within the network connection control signal. There is an inter-user data area.The exchange has the function of identifying data in this inter-user data area from connection control signals sent from terminals and transferring it end-to-end. .

Note that in the following explanation, the dialing procedure differs from that of conventional analog telephones, but this is because in the digital signaling system, all required digits are included in the dialing signal. Therefore, all dials must be entered before sending a call signal, and an operation is required to complete dial input. Here, it is assumed that dial input is ended by, for example, pressing "#". It should be noted that although it is possible to realize this by dial operation equivalent to analog, the dial input method is not important to this invention and will therefore be omitted.

(a) First, the device and system configuration will be explained.

FIG. 1 shows an example of the configuration of a digital telephone embodying the present invention. 1 is a handset, 2 is a communication circuit, 3 is a dial, 4 is a codec that converts audio signals into digital signals, and 5 is a synchronization control of digital signals with the network, connection control signals, etc. An interface circuit that separates and assembles digitized voice signals; 6 is a message memory for transmission that stores simple messages to be transmitted when the called party is busy or absent; 15 is a message sent from the called party during a call; Message memory for reception to store the phone number and message of the other party when it cannot be displayed immediately, such as when there are multiple numbers, 7 is a monitor display of the dialed phone number, and the calling number is sent from the network when a call is received. , a display for displaying a simple message from the telephone of the person making the call; 8 is a display drive circuit for driving the display 7; 9
1Q is a ringer sound generation circuit that generates a ringer sound when a call is received; 1Q is a ringer sound generating circuit that generates a ringer sound output from the sounder 9; 11 is a ringer sound generating circuit that generates a ringer sound when a call is received; Send or
A memo sending/reading key 12 is used to read out what has been stored in the receiving message memory 15, and 12 is used to send and receive connection control signals to and from the network, control the ringer sound generating circuit 1o when receiving a call, dial monitor and send. Control of display drive circuit 8 for displaying caller number and message from the other party, memo sending and
A control circuit 13 sends a message from the sending message memory 6 to the network when the read key 11 is pressed; 13 is a control circuit 12 that connects the dial 3 and the memo send/read key 11;
key switch interface circuit for connecting with
14 is a power supply circuit that supplies necessary power to each circuit of this digital telephone.

Figure 2 shows the connection system configuration. 20 is operator A's telephone;
Reference numeral 21 designates a telephone of operator B who makes a call with operator A, 22 a telephone of operator C who makes a call to operator A while operator A and operator B are talking, and 23 a network. In the following explanation, the components of the telephone 2o are indicated by a after the number, the components of the telephone 21 are indicated by b after the number, and the components of the telephone 2o are indicated by the letter b after the number.
Components No. 2 are distinguished by adding C after the number.

Further, it is assumed that the transmission message memory 6 stores a message such as "DEN WASI TEKDA SAI".

There are several ways to store messages, such as ■ handwritten input using a digitizer, etc., ■ storing arbitrary messages using a full keyboard, etc., ■ storing fixed messages in ROM in advance. It shall consist of fixed messages.

The method of creating the message is not important to this invention.

Furthermore, there is a method of storing a plurality of messages in the sending message memory 6 and selecting one of them to send. However, this method consists of a plurality of corresponding selection keys instead of the memo sending/reading key 11. This can be easily achieved by doing this. Since the number of messages is not essential to this invention, FIG. 1 shows only one message.

(b) Next, normal call/receive operations will be explained.

FIG. 3 is an example of the flow of the call originating/receiving operation of the control circuit 12.

Further, diagram N4 is an example of a signal sequence of the telephone 20, the telephone 21, and the network 23.

When operator A goes off-hook, the control circuit 12a waits for manual dialing. Operator A inputs, for example, B's telephone number using dial 3a. When a telephone number is input, the control circuit 12a controls the display drive circuit 8a to monitor and display the manually input telephone number on the display 7a. Further, when the operator A presses "#" to end the dial input, the control circuit 12a sends a calling signal and the dialed telephone number to the 1IA23 through the interface circuit 5a. In addition, in the digital signaling system, since multiple calls are controlled using one signal channel, it is necessary to allocate a call number that associates a connection control signal with a call. teA-B
It is assumed that signals corresponding to calls between the telephones 20 and 21 are exchanged between the telephones 20 and 21.

When the network 23 receives these signals, it connects to the telephone 21 and transmits the incoming signal and the telephone 2 to the telephone 21.
Send 0 phone number. These signals are transmitted to the control circuit 12b through the interface circuit 5b. When the control circuit 12b receives these signals, it knows that the call has arrived at the telephone 21, and first, the ringing sound generation circuit 10
b is controlled to emit a ringer sound from the sounder 9b.

Furthermore, the calling number sent from the network (in this case, the telephone number
0 telephone number) is displayed on the display 7b by controlling the display drive circuit 8b. Further, the control circuit 12b sends a call confirmation signal to notify that the network 23 ringer tone has been sounded. When the network 23 receives this call confirmation signal, it generates a ringback tone (RBT) and transmits it to the caller's telephone 2o using an information channel. This RBT is phone 2
0's interface circuit 5a, codec 4a, communication circuit 2a, handset]a, it can be seen that the call is transmitted to the operator A.

After that, when operator B goes off-hook, control circuit 12b
stops the ringer sound generation circuit 10b, stops the ringer sound, sends a response signal to the network 23, and enters a talking state. When the network 23 receives this response signal, the telephone 20
and the telephone 21, and the telephone 2
Sends a response signal to 0. The control circuit 12a of the telephone 2o is
When a response signal is received, the telephone enters a busy state, and a telephone call between the telephone 2 and the telephone 21 is carried out by the handset 1a, the telephone circuit 2a, the codec 4a, the interface circuit 5a, and the telephone 21.
Net 23. Communication is possible through the interface circuit 5b, codec 4b, communication circuit 2b, and handset 1b.

(1) Next, we will explain how to send a simple message when you make a call and the other party is busy. Here, (a)
During a call on telephone 20 and telephone 21 explained in
This will be explained as calling from 2.

FIG. 5 shows an example of the operation flow of the telephone 22, and FIG. 6 shows an example of the operation flow of the telephone 20. Also, Figure 7 shows telephone 2.
0. Telephone 22. An example of a signal sequence of the network 23 is shown.

When the operator C goes off-hook with the telephone 22 in the state described in (a), the control circuit 12c waits for dial input.

Operator C inputs, for example, the telephone number of telephone 20 using dial 3c. When a telephone number is input, the control circuit 12c controls the display drive circuit 8c to display the display 7c.
The phone number entered manually is displayed on the monitor. Furthermore, when the operator C presses "#" to end the dial manually, the control circuit 12c connects the network 2 through the interface circuit 5C.
3, sends a calling signal and the dialed telephone number.

When the network 23 receives these signals, it connects to the telephone 2o and transmits the incoming signal and the telephone 2o to the telephone 20.
Send your phone number 2. Here, the connection control signal from the telephone 22 is assigned a call number different from the number "1" used in explanation (a), for example "2", and the control circuit 12
In a, it can be seen that the signal is not related to a call to a telephone. Below, if the call number is "1", the signal with the telephone is "2".
”, it can be identified as a signal from a telephone.

The incoming signal and telephone number are transmitted to the control circuit 12a through the interface circuit 5a.

When the control circuit 12a receives these signals, the control circuit 12a controls the telephone 2.
You can see that the call is coming to 0, but in this case, the call is from phone 2.
Since the call is in progress with 1, a busy signal is sent back to the network 23.

When the cable 23 receives this busy signal, it emits a busy tone BT.
is generated and sent to telephone 22 using the information channel. The busy tone BT is heard by the operator C through the interface circuit 5c, the codec 4c, the telephone call circuit 2-c, and the handset 1c. Therefore, operator C calls the person (
It can be seen that operator A) is busy. Therefore, the operator C presses the memo sending/reading key 11c in order to send the message in the sending message memory 6C to the telephone 20 instead of making a phone call. When the control circuit 12c detects that the memo sending/reading key 11c is pressed, the control circuit 12c sends a disconnection signal to the network 23 and sends out the selected message in the inter-user data area, leaving the area empty.

Here, an example of a signal configuration using inter-user data is shown in FIG. As shown in the figure, the first to fourth octets of the signal have a fixed length, and the fourth octet is a network connection control signal. In addition, the information after the 5th octet is designed to include information that identifies the information element and its length, so in the example in Figure 8, the information element is "user-to-user data" and the content of the user-to-user data is added. The length "10" is sent to the 5th and 6th octets, respectively, and the transfer information "DENSO SITEKUDASI" is sent to the 7th to 16th octets.

Note that the transfer information is converted into a digital signal such as a JIS code and sent.

When the network 23 receives the signal shown in FIG. 8, it first reads the information in the fourth octet, which is the connection control signal.

Since it is "disconnected" here, it can be seen that a disconnection signal is being sent from the telephone set 22. Further, reading the fifth octet, it is found that there is data to be sent from telephone 22 to telephone 20 since it is "inter-user data" here.

Therefore, the network transfers the data in the 7th to 16th octets in FIG.
The call number "2" is used for these calls).

The signal configuration in this case is similar to that shown in FIG.

As shown in the flowchart of FIG. 6, when the control circuit 12a of the telephone 20 receives a signal from the network 23, the control circuit 12a of the telephone 20 determines that the signal is from the telephone 22 because the call number of the signal is "2". I understand. Also, in the same way as when the network receives a signal from the telephone 22, the fourth octet of the received signal is a "disconnect" signal, and from the fifth octet onwards, "inter-user data" from the telephone 22 is sent. I can see what has happened. Therefore, the control circuit 12a converts the information sent from the telephone 22 as inter-user data from JIS code to the code displayed on the display 7a, and controls the display drive circuit 8a using the previously received telephone number. Indicator 7
Display on a. An example of this display is shown in FIG. Furthermore, since the signal is "disconnected", the call status with the telephone set 22 is set to be in an empty state. That is, since the call number is "2", it can be seen that the "disconnect" signal is a signal to the telephone set 22, and the communication state with the telephone set 21 is maintained.

The above operation allows operator A to see operator C's message ``I would like you to call me'' even if operator A is on the phone with operator B.

Further, if, for example, there is a call from D while the message from C is being displayed and a message is also sent, the control circuit 12a will control the received telephone number (here, the telephone number and The message from D is stored in the receiving message memory 15a.After this, while the telephone is empty, operator A presses the memo sending/reading key 1.
1a, the control circuit 12a controls the display drive circuit 8a to display the telephone numbers and messages stored in the receiving message memory 15a on the display 7a, starting from the first one stored, for example. Therefore, even if it cannot be displayed immediately, it can be checked later. Examples of this operational flow are shown in FIGS. 6 and 10.

Furthermore, in this embodiment, a method for sending a message when the other party is busy is shown, but it should be noted that the same method can be used even when the other party is not present.

In addition, as an example of a signal configuration, although the explanation was given using a specific number of octets, the present invention is not limited to this, and any configuration agreed upon between the originating and terminating home equipment and the switching equipment may be used. good.

In this embodiment, if the telephone to which the message is sent (in this case telephone 20) does not have a display device or is not of the same type, the message cannot be displayed, but the message cannot be displayed. The control circuit of the telephone that is sent can receive the connection control signal with the exchange explained above, and furthermore, even if it contains data between users, it cannot receive the signal related to call control (in the example, the fourth octet).
can be analyzed to prevent malfunctions.

(Effects of the Invention) As described above, according to the present invention, there is provided a message memory for sending, a message memory for receiving, a memo sending/reading key for sending and reading messages in both memories, and a message sending/reading key for sending and reading messages in both memories. Display means for displaying the caller's telephone number and messages sent from the other party, memo sending and
When the read key is pressed, the message in the transmission message memory is configured and sent to the specified position of the signal to be transmitted to the other party's home equipment within the signal channel, and the signal is sent to the specified position within the signal of the signal channel from the network. Using a digital telephone equipped with a control means that analyzes the data and displays it on the display means, when the memo sending/reading key is pressed, the message stored in the message memory for transmission is sent to the other party's home equipment on the signal channel. It is configured at a specified position of the signal to be transmitted, and sent to the network along with a disconnection signal by the control means, and when the control means of the other party's digital telephone has a message sent from the sending side at the specified position, it is stored in the receiving message memory. Then, when the memo sending/reading key is pressed, the accumulated messages are displayed on the display means, so you can send and receive not only incoming calls and phone numbers from third parties, but also simple messages. For the caller, a) the caller can convey the message without being aware that the caller is busy or absent.

b) Make a call again (re-dial)
This becomes unnecessary.

・For the receiving party, 1) You can receive messages even if you are busy or absent.

(Engineering) There are no forced interruptions, so you won't be interrupted by a call in progress.

There is an advantage.

[Brief explanation of the drawing]

Fig. 1 shows an example of the configuration of a digital telephone embodying the present invention, Fig. 2 shows an example of the connection system configuration, Fig. 3 shows an example of the call/receive operation flow of the control circuit, and Fig. 4 shows the operator A and 8
5 is a diagram showing an example of the operation flow of the control circuit of operator C's telephone, and FIG. 6 is an example of the operation flow of the control circuit of operator A's telephone. 7 is a diagram showing an example of a signal sequence between telephones and a network between operators A and 0, FIG. 8 is a diagram showing an example of a signal configuration, FIG. 9 is a diagram showing an example of a display, and FIG. The figure is a diagram showing another example of the operation flow of the control circuit of operator A's telephone. In the figure, 1 is a handset, 2 is a call circuit, 3 is a dial, 4 is a codec, 5 is an interface circuit, and 6
1 is a message memory for transmission, 7 is a display, 8 is a display drive circuit, 9 is a sounder, 10 is a ringing sound generation circuit, 11
12 is a control circuit, 13 is a key switch interface circuit, 14 is a power supply circuit, 15 is a receiving message memory, 20 to 22 are telephones, and 23 is a network. 2nd diagram 1 Figure 4 Figure 3 Figure 5! Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] It has an information channel for transmitting and receiving voice etc. and a signal channel for transmitting and receiving connection control information, and among the signals in the signal channel, there is a signal that is used in the network and a signal that is transmitted to the other party's home equipment. In a digital network where it is possible to distinguish between
A message memory for sending, a message memory for receiving, a memo sending/reading key for sending and reading messages in both memories, and a caller's telephone number sent from the network and a message sent from the other party. a display means for displaying a message; and when the memo sending/reading key is pressed, configuring and sending the message in the sending message memory to a designated position of a signal to be transmitted to the other party's home equipment in the signal channel; When the memo sending/reading key is pressed, the digital telephone is equipped with a control means for analyzing and displaying the signal on the display means when there is a signal at the specified position in the signal of the signal channel from the network, and when the memo sending/reading key is pressed, Configuring the message stored in the transmission message memory at a designated position of a signal to be transmitted to the destination's home equipment on the signal channel, and transmitting it to the network together with a disconnection signal by the control means, and in the control means of the destination digital telephone, When there is a message sent from the sending side at the designated position, the message is stored in the receiving message memory, and when the memo sending/reading key is pressed, the stored message is displayed on the display means. Characteristic memo communication method.