JPH05268304A - Digital telephone system - Google Patents

Abstract

PURPOSE:To attain the transmission of messages just with operation of its own terminal by providing a call setting message inserting means to insert a message into a subaddress area in a calling state. CONSTITUTION:In a digital telephone system, a necessary message is set by a character setting switch 1, put on a subaddress by a control part 2, and sent to a trunk line via a circuit I/F part 3. In an incoming state, the subaddress data received via the part 3 are supplied to the part 2 where the message put on the subaddress is extracted. Then the message is shown at a display part 4. Thus a user can know the received message and answers this message. Then the talking is attained through a CODEC10, an analog signal control part 11, a handset 12 and a speaker 13 respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital telephone device which is connected to an ISDN line and which can carry a message with a subaddress.

[0002]

2. Description of the Related Art Various new services are provided on ISDN lines. For example, even if an urgent call comes in during a call, it is possible to know that the call arrived, but the urgency is unknown until the call is answered. In order to eliminate such inconvenience, a call waiting function is prepared, and if this function is used, "EMR
By displaying "EGENCY", the degree of urgency can be known, the first call can be put on hold, and the incoming call can be answered.

[0003]

However, since such a service is charged and a contract is required to use it, not only is the running cost high, but it is not immediately available.

The present invention has been made in view of the above circumstances, and is intended to enable a message to be transmitted only by operating a terminal of the user without running cost.

[0005]

In order to solve such a problem, the invention of claim 1 is provided with a call setting message inserting means for inserting a message message into the sub-address area at the time of calling. .. The invention of claim 2 is IS
It is provided with a detecting means for detecting the data of the sub-address portion in the call setting message sent from the DN network and a displaying means for displaying the detected message. According to the invention of claim 3, a call setup message inserting means for inserting a message message into the sub-address area at the time of calling, and ISDN.
It is provided with a detecting means for detecting the data of the sub-address portion in the call setup message sent from the network and a displaying means for displaying the detected message.

[0006]

The message information inserted into the sub-address by the call setting message inserting means is sent to the partner terminal, which is detected by the detecting means and displayed by the displaying means.

[0007]

1 is a block diagram showing an embodiment of an apparatus to which the present invention is applied. In this device, when a required message is set by the character setting switch 1, the control unit 1 puts the message on a sub address, and the line / I
It is sent to the central line through the F section. Line I / F section 3 for incoming calls
The sub-address data received via the sub-address is supplied to the control unit 12, where the message put on the sub-address is extracted and displayed on the display unit 4.

[0008] With this, the user can know the message sent, and if he / she responds to it, the codec 10 and the analog signal control unit 11 can talk by the handset 12 and the speaker 13. When AC power is available, power from the AC power supply 15 and the AC adapter 16 is supplied to the inside of the device via the power supply switching unit 17, and at the time of power failure, power from the power supply unit 18 is supplied via the power supply switching unit 17. Supplied.

Since up to eight terminals connected to the ISDN can be connected to the bus, the terminals are identified by sending subaddress information for identifying the other party at the time of calling. The receiving side detects the sub-address information that has been sent, and determines whether or not the sub-address has been called, depending on whether or not the content matches the sub-address number of the self. Specifically, this sub-address information is realized by sending 19 IA5 characters.

This device uses as character information by giving meaning to the combination of characters in this subaddress. Since the IA5 character can transmit not only numbers but also alphabets, it can be directly used as characters. In order to distinguish it from a normal subaddress, it is encoded with a character code that is not used in the subaddress number.

However, although it is good for short sentences, the number of characters is insufficient with 19 characters for long and complicated sentences.
In order to solve this, a fixed sentence is coded, and when a certain code is received, the sentence previously registered in the telephone can be displayed on the display unit to deal with the problem. In this case, it is also possible to use Kanji at the time of registration.

FIG. 2 is a flow chart showing the processing at the time of calling. As shown in step 100, the character transfer switch is turned on, and character input or code input is performed in step 101. For this input, for example, there is a method of connecting a keyboard to a telephone and inputting from the keyboard, a method of displaying a character list on a display and selecting a necessary character from the buttons by a button of the telephone. Further, as described above, in order to cope with a long sentence, it is conceivable that a fixed sentence is made into a program and stored at the time of manufacturing the telephone, and the fixed sentence is selected by a code.

When the input of the above-mentioned message is completed, the other party's number is dialed as shown in step 102, the calling process is performed as shown in step 103, and step 104 is executed.
Set up the call as shown in. As a result, a character is created corresponding to the input character, this code is inserted in the sub-address area, and a call setup message is constructed. The partner number dialing process in step 102 may be performed before the operation of the character transfer switch. Also, step 100
In, when the character transfer switch is not operated, a normal call is made, that is, a simple subaddress is sent as necessary.

FIG. 3 is a flow chart showing the incoming call processing. If it is determined in step 120 that the information received has a sub-address, it is determined in step 121 whether there is a character information code. When there is no subaddress or when there is no character information code, normal incoming call processing is performed.

However, if there is a character information code, it is judged in step 122 whether or not it is a direct character. In the case of a direct character for displaying the sent code as a direct character, as shown in step 123,
The IA5 character of the subaddress is decoded and the decoded character is displayed on the display as shown in step 124. Then, in step 125, a normal incoming call process is performed.

If it is judged in step 122 that the character is not a direct character, code processing, that is, a message stored in advance at the time of manufacturing the telephone corresponding to the code is read and displayed on the display. This process is performed as shown in FIG. That is, as shown in step 140, a code is extracted from the subaddress character, and step 14
The document corresponding to the code is read from the memory as shown in 1, and the read character is output to the display as shown in step 142. Then, as shown in step 143, a normal incoming call process is performed.

FIG. 5 shows a character sent by the sub address, and the leading terminal designated sub address is 3
Character, then 1 character of character information identification code,
Next, the sub-address information is composed of a total of 19 characters consisting of 14 characters of the transmission message and finally 1 character of the character information end code.

In this example, the message "EMERGENCY" is sent, which is "4" for the IA5 character.
It is sent with a code of "5""40""52" ... As described above, this code employs a code that is not used for the terminal-specified subaddress, the character information identification code, and the character information end code. This example is a direct message, but in the case of code processing, for example, "CALL349
By inputting "351111", it is determined to be code processing, the sentence "call me" is read out from the fixed texts stored in advance, and "call 3493.5111" is displayed.

FIG. 6 shows a sequence flow. When the user 2 is communicating with the user 3, the user 1 sends the user 3 [E].
This is an example of sending a message "MERGENCY". That is, when the user 3 responds to the network, the network accepts the response to the user 3 and responds to the user 2, whereby the user 2 and the user 3 are communicating with each other.

[0020] Here, the user 1 enters the [EME
If you set up the call "RGENCY", it will be transmitted to the network,
The network sets up the call to user 3 and displays [EMER] on the display.
"GENCY" is displayed. The network also returns to the user 1 information indicating that the call setup has been accepted.

When the user 3 who has seen this display calls the user 1, the network calls the user 1 accordingly. Then, for example, when the call with the user 2 who has been talking is ended, the user 3 disconnects the network. As a result, the network performs the disconnection process for the user 2, so that the user 2 performs the release process for the network and the network releases the connection with the user 2 for the user 3.

As a result, the user 3 performs the release completion processing for the network, and the network performs the release completion processing for the user 2. On the other hand, the user 3 performs response processing for the network, and the network performs response processing for the user 1. Then, the network accepts the response to the user 3 so that the user 1 and the user 3 communicate with each other.

[0023]

As described above, according to the present invention, since the message is put on the sub-address, there is an effect that it is not necessary to pay the usage fee and the message can be transmitted without making a contract.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of a call origination process.

FIG. 3 is a flowchart illustrating the operation of incoming call processing.

FIG. 4 is a flowchart illustrating the operation of code processing.

FIG. 5 is a diagram illustrating a data structure of a sub address.

FIG. 6 is a diagram showing a sequence between users.

[Explanation of symbols]

 1 character setting switch 2 control unit 3 line I / F unit 4 display unit 10 codec 11 analog signal control unit 12 handset 13 speaker 15 AC power supply 16 AC adapter 17 power supply switching unit 18 power supply unit

Claims (3)

[Claims] 1. A digital telephone device connected to an ISDN network and having a sub-address function, comprising call setting message insertion means for inserting a message message into the sub-address area when a call is made. 2. A digital telephone apparatus connected to an ISDN network and having a sub-address function, wherein the detecting means detects data of a sub-address portion in a call setup message sent from the ISDN network, and displays the detected message. A digital telephone device comprising display means. 3. In a digital telephone device connected to an ISDN network and having a sub-address function, call setup message inserting means for inserting a message message into the sub-address area at the time of calling, and a call setup message sent from the ISDN network. A digital telephone device comprising: a detection unit that detects data in a sub-address portion therein, and a display unit that displays the detected message.