JPH1098544A - Communication system and digital communication terminal - Google Patents

Abstract

(57) [Problem] To provide a communication system and a digital communication terminal capable of realizing a message notification function and a caller number notification function even between heterogeneous communication systems. A control unit (22) adds a caller number or various messages input from a key input unit (21) to sub-address information to be transmitted to a terminal on the receiving side during a call.
A code for identifying the type of the information is added to the head of the information. Next, the transmitting / receiving unit 10 and the communication control unit 11
At the time of calling, the subaddress information is transmitted to the terminal on the receiving side. On the other hand, at the time of an incoming call, the destination sub address recognition unit 15
The sub-address information transmitted from the terminal on the transmitting side during the incoming call is received. Then, based on the code added to the sub-address information, the control unit 22 controls the free character conversion unit 16,
It activates the fixed phrase conversion unit 17, the pictogram conversion unit 18, and the caller number conversion unit 19, and decodes the received information. Then, the decoded information (caller number and various messages) is displayed on the display means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a PHS terminal and an IS
The present invention relates to a communication system and a digital communication terminal capable of exchanging data between heterogeneous communication systems, such as a DN terminal.

[0002]

2. Description of the Related Art Conventionally, PHS (Personal Handy Pho
ne System), in the communication between the PHS terminals, in order to communicate with the partner terminal, enter the telephone number of the partner terminal and operate the talk key, from the calling terminal to the called terminal A call setup message is sent.
A caller ID and a sub-address are added to this call setup message. Before the callee receives a call, a caller ID notification function for displaying the caller ID and an optional message can be added to the sub-address. And a message notification function for displaying the message before the called party receives the call.

In addition, ISDN (Integrated Services Di
gital Network), the caller ID and sub-address are added to the call setting message, and the caller ID is displayed on the caller before receiving the call. A sub-address notification function is provided for adding a sub-address to the main telephone number and calling an arbitrary terminal.

[0004]

However, in the communication system based on the PHS and the communication system based on the ISDN, how to use the sub-address is as follows.
Since each communication system defines it independently,
In spite of the similar digital communication system, there is a problem that the message notification function and the caller ID notification function cannot be effectively used mutually. For example, a communication system based on ISDN does not have the above-mentioned message notification function. Therefore, when a PHS terminal adds a message to a subaddress and calls an ISND terminal, the ISND terminal recognizes the message as a subaddress and malfunctions. I do. That is, there is a problem that the message notification function can be used only in a PHS communication system. Also, the originating IS
If a DN terminal (especially an ISDN public terminal) or a PHS terminal does not have a caller ID notification function, there is naturally a problem that the caller ID cannot be notified.

Accordingly, an object of the present invention is to provide a communication system and a digital communication terminal capable of realizing a message notification function and a caller number notification function even between heterogeneous communication systems.

[0006]

In order to achieve the above object, a communication system according to the first aspect of the present invention is a communication system for communicating between terminals connected to a communication network wirelessly or by wire in a communication terminal. At the time of outgoing call, data is added to the call setting signal, and a code for identifying the type of the data is added and transmitted to the receiving side, and the receiving side terminal receives the call setting signal, The added data is converted and output based on the added code.

In a preferred embodiment, the data and code to be added to the call setting signal are attached to at least a sub-address indicating a slave unit of the terminal on the calling side or the receiving side, for example. You may.

In a preferred aspect, the data may be at least one of a caller number, a numeric message, a free text message, a fixed text message, and a pictograph message. .

According to another aspect of the present invention, there is provided a data communication terminal, comprising: an input unit for inputting a message to be transmitted to a partner; Call setting signal generating means for adding a code for identifying the type of the message, call instructing means for instructing a call, and generating the call setting signal when a call is instructed by the call instructing means. Calling means for transmitting the call setting signal generated by the means.

In a preferred embodiment, a receiving means for receiving a message and a call setting signal to which a code for identifying the type of the message is added, and a message received by the receiving means. Message reproducing means for reproducing the message based on a code identifying the type of the message.

In a preferred embodiment, the message may be at least one of a caller number, a numeric message, a free text message, a fixed text message, and a pictograph message. .

In a preferred embodiment, a database storing at least a plurality of caller IDs and a name corresponding to the caller ID, and a message received by the receiving means being transmitted. If the caller number is a caller number, the message reproducing means includes, based on a result of the check by the check means, the received caller number, The caller name corresponding to the number may be reproduced.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention
An embodiment applied to an HS terminal will be described with reference to the drawings. A. Configuration of Example A-1. FIG. 1 is a block diagram illustrating a configuration of a PHS terminal according to an embodiment of the present invention. In the figure, 10 is a transmitting / receiving unit,
It comprises a frequency conversion unit comprising a receiving unit and a transmitting unit, and a modem comprising a receiving unit and a transmitting unit. The reception unit of the frequency conversion unit mixes the signal received by the antenna ANT1 input through the antenna switch for distributing transmission / reception with a local oscillation signal of a predetermined frequency output from the PLL synthesizer, thereby: 9GH
Frequency conversion is performed from the z band to an IF (intermediate frequency) signal in the vicinity of the 1 MHz band. Further, the transmitting unit of the frequency conversion unit mixes a π / 4-shift QPSK modulated wave supplied from a modem described later with a local oscillation signal of a predetermined frequency output from the PLL synthesizer so that the frequency becomes 1.9 GHz. The signal is converted and radiated from the antenna ANT1 via the antenna switch. Next, the receiving unit of the above-described modem demodulates the IF signal from the frequency converting unit, separates the IF signal into IQ data, forms a data sequence, and sends the data sequence to the communication control unit 11. Further, the transmitting unit of the modem creates IQ data from the data supplied from the communication control unit 11, modulates the data by π / 4 shift QPSK, and sends the modulated data to the frequency conversion unit of the transmitting / receiving unit 10.

Next, the communication control section 11 is composed of a transmitting side and a receiving side, and performs frame synchronization and slot data format processing. The receiving side extracts data for one slot at a predetermined timing from the received data supplied from the modem of the transmission / reception unit 10, extracts a unique word (synchronization signal) from the data, and generates a frame synchronization signal. After the descrambling of the control data section and the audio data section, the control data is sent to the control section 22 and the audio data is sent to the audio processing section 12. Further, the transmitting side adds control data and the like to the audio data supplied from the audio processing unit 12, adds scramble and the like, and then adds a unique word and the like to create transmission data for one slot. It is inserted into a predetermined slot in the frame at a predetermined timing and transmitted to the modem of the transmission / reception unit 10.

Next, the above-mentioned audio processing unit 12 is composed of a speech codec and a PCM codec. The speech codec performs compression / expansion processing of digital data, and includes a receiving side and a transmitting side. The receiving side receives the ADPCM audio signal (4 bits × 8 kHz = 3) supplied from the communication control unit 11.
2Kbps) to PCM audio signal (8 bits x 8KHz =
Decompress to 64Kbps to expand PCM
Output to codec. The transmitting side encodes the PCM audio signal supplied from the PCM codec into an ADPCM audio signal, compresses the signal, and sends the signal to the communication control unit 11. The above-described PCM codec performs an analog / digital conversion process. The receiving side converts the PCM audio signal supplied from the speech codec into an analog audio signal by D / A conversion, causes the speaker 13 to generate a sound, and transmits the signal. The A / D converter converts the analog audio signal input from the microphone 14 into a PCM signal by A / D conversion, and sends the PCM signal to the speech codec.

The destination sub-address recognizing unit 15 is activated by the control unit 22 when an incoming call is received, determines whether or not there is destination sub-address information. Judge and supply the judgment result to the control unit 22. Next, the free character conversion unit 16 is activated by the control unit 22 when the first two characters of the code added to the destination subaddress are “* 2”,
The code following the first two characters “* 2” is converted into a character according to a predetermined conversion table, and the character string is supplied to the control unit 22. The fixed phrase conversion unit 17 is activated by the control unit 22 when the first two characters of the code added to the destination sub address are “* 4”, and converts the code following the first two characters “* 4” into a fixed format according to a predetermined conversion table. Is converted into a sentence, and the fixed form sentence is
Feed to 2.

Next, the pictographic conversion unit 18 is activated by the control unit 22 when the first two characters of the code added to the destination sub-address are "* 6", and determines a code following the first two characters "* 6". Is converted into pictograms in accordance with the conversion table, and the pictograms are supplied to the control unit 22. Caller ID converter 19
Is activated by the control unit 22 when the first two characters of the code added to the destination subaddress are “* 0”, and the code following the first two characters “* 0” is converted into a numeric string (caller number) according to a predetermined conversion table. ) Is supplied to the control unit 22. The telephone directory matching unit 20 determines the digit string converted by the caller number conversion unit 19 as a caller number,
The caller name is compared with a telephone number in a telephone directory registered in advance, a caller name registered in association with a matching telephone number is extracted, and the caller number and the caller name are supplied to the control unit 22.

Next, the key input section 21 is composed of numerical keys for inputting the telephone number of the other party, a switch for on-hook / off-hook, a volume switch for changing the voice output, and the like. The state of these keys and switches is controlled by the control unit 2.
2 is supplied. Next, the control unit 22 controls the entire apparatus according to a predetermined program. In particular, in this embodiment,
When an incoming call is received, first, the destination sub-address recognition unit is activated, a predetermined conversion unit is activated based on the recognition result of the destination sub-address recognition unit, and then the conversion result from the activated conversion unit is received. 25.

The ROM 23 stores programs executed by the control unit 22, various parameters, and the like. The RAM 24 stores data generated under the control of the control unit 22 and is used as a working area. The RAM 24 also stores addresses such as addresses of telephone parties to be called and telephone numbers and the like. A telephone directory (database) is stored. Next, the display unit 25
The control unit 22 includes a liquid crystal display for displaying various data such as an operation mode, a telephone number, a call time, and the like, and an LED for indicating ON / OFF of a switch and the like. Under control, a caller ID, a message, etc. are displayed.

B. Next, an operation of the PHS terminal according to the above-described embodiment will be described. In the following description, the operation of each unit associated with a call is the same as the operation of a normal PHS terminal, and thus the description is omitted. When a call is originated from the calling terminal, a call setting message is sent. This configuration message is
It contains at least the calling party number, calling subaddress, and called subaddress. Since the caller ID notification function using the caller ID is normally performed, the description is omitted. The caller ID notification described below is a caller ID notification using a subaddress.

B-1. Outgoing Call Processing Here, FIGS. 2 and 3 are flowcharts for explaining the operation of the above-described PHS terminal when transmitting. 2 and 3 also show the operation of the ISDN public terminal having no caller ID notification function. In FIG. 2, steps S10 to S16 include a terminal such as the above-mentioned ISDN public terminal that does not have a caller ID notification function or a telephone number that has a caller ID notification function but is not a telephone number set in its own terminal (for example, This is a process in a case where it is desired to notify a company, home, or pager telephone number) as a caller number. First, in step S10, it is determined according to a user's instruction whether to notify the caller number. If the caller ID notification is selected by the user, the process proceeds to step S12, and it is determined according to the user's instruction whether to notify the telephone number set in the terminal as the caller ID.

When the user instructs not to notify the terminal setting telephone number as the caller number, the process proceeds to step S14, and the telephone number is input from the key input unit. That is, when a call is made from a public terminal, such as the above-mentioned ISDN public terminal, the telephone number of the person who wants to be able to confirm himself / herself or the telephone number with which he / she wants to contact the person (for example, the telephone of a home, a company, or a pager) Number). Next, the process proceeds to step S16, where "* 0" is added to the head of the input telephone number, and then the process proceeds to step S46 shown in FIG. A number is added and a destination subaddress is generated. Then, the process proceeds to a calling process (not shown) to make a call to the other party's telephone number, and to transmit a call setting message to which the called party's sub-address including “* 0” and the input caller number is added to the called side.

In the case of a terminal having a caller ID notifying function, the caller ID is automatically notified by a call setting message. Displays the caller ID of the calling sub address, and if the caller ID is added to the destination address,
This is displayed with priority. This process will be described later in the incoming call process.

On the other hand, if the user instructs to notify the terminal setting telephone number as the caller ID, the process directly proceeds to step S16, where "* 0" is added to the head of the terminal setting telephone number. After that, step S shown in FIG.
Proceeding to 46, the caller ID is added to the destination subaddress information,
The “* 0” + telephone number set in the terminal is added to generate a destination subaddress. Then, the process proceeds to a calling process (not shown) to make a call to the other party's telephone number, and transmit a call setting message to which the called party's sub-address information including “* 0” and the terminal setting caller number is added to the receiving side.

On the other hand, if the caller ID has not been selected by the user, the process proceeds from step S10 to step S18. In step S18, it is determined according to the user's instruction whether to notify the message. Then, when the message notification is not instructed, the process is terminated as it is, the process proceeds to a calling process (not shown), and a call is made to the telephone number of the other party.

On the other hand, when a message notification is instructed, the process proceeds to step S20, and it is determined whether the message is a numeric message according to a user's instruction. Then, when a numeric message is instructed, the process proceeds to step S22, and the user is caused to input a number from the key input unit (dial). Then, the process proceeds to the above-described step S46, where the input number is added as a numeric message to the destination sub-address information to generate a destination sub-address.
Then, the process proceeds to a calling process (not shown) to make a call to the other party's telephone number and notify the called party of the called subaddress to which the called subaddress information including the numeric message is added. In this case, nothing is added to the head of the numeric message.

Next, if the user has not designated a numeric message, the process proceeds from step S20 to step S24, where it is determined whether or not the message is a free character message of any character. Then, when the free character message is instructed, the process proceeds to step S26, and the user is caused to input the message from the key input unit (dial). At this time, the user inputs characters according to a predetermined correspondence between the dialed numeric keys and the characters. When the text message is input, the process proceeds to step S28, where "* 2" is added to the beginning of the free character message, and then the process proceeds to step S46 shown in FIG. Adds a text message and generates a destination subaddress. Then, the process proceeds to a calling process (not shown), and a call is made to the other party's telephone number.
A call setup message to which destination subaddress information consisting of "* 2" and a free character message is added is transmitted to the receiving side.

On the other hand, if the user has not instructed the free character message, the process proceeds from step S24 to step S30 shown in FIG. 3 to determine whether the message is a fixed message. Then, when the fixed form message is instructed, the process proceeds to step S32, and the fixed form list is displayed on the display unit 25. Then, in step S34, the user is caused to select a desired fixed phrase. In the case of an ISDN public terminal, the user selects a standard text list (hard copy) by inputting the number (code) of the desired standard text. Next, in step S36, "* 4" is added to the head of the code corresponding to the selected fixed phrase, and then the process proceeds to step S46, where the "* 4" +
Adds the fixed phrase code to generate the destination subaddress.
Then, the process proceeds to a calling process (not shown) to make a call to the other party's telephone number and to transmit a call setting message to which the called sub-address information including the code of “* 4” and the standard text is added to the receiving side.

On the other hand, when the user does not designate a fixed-form message, steps S30 to S38 are performed.
To determine whether the message is a pictographic message. Then, when the pictogram message is instructed, the process proceeds to step S40, and the pictogram is displayed on the display unit 25. Then, in step S42, the user is caused to select a desired pictogram (plural characters). In the case of an ISDN public terminal, the user selects a pictogram by looking at the pictogram list (hard copy) and inputting a desired pictogram number. Next, in step S44, "* 6" is added to the head of the code corresponding to the selected pictogram (s), and then the process proceeds to step S46, where the "* 6" + code of the pictogram is added to the destination sub-address information. To generate a destination subaddress. And
The process proceeds to a calling process (not shown) to make a call to the other party's telephone number, and to transmit a call setup message to which the called sub address information including the code of "* 6" and the pictograph is added to the called side.

B-2. Incoming Call Processing Here, FIGS. 4 and 5 are flowcharts for explaining the operation of the above-described PHS terminal when receiving an incoming call. First, in step S50, it is determined whether or not an incoming call has been received. If not, step S50 is repeatedly executed. If a call has not been received, the process may be terminated and another process (key input determination) may be executed. On the other hand, if an incoming call is received, the process proceeds to step S52, where it is determined whether or not there is a caller number in the call setting message. If there is a caller number, the caller number is stored in the RAM 24 in step S54. After that, step S56
Proceed to. On the other hand, if there is no caller ID, the process directly proceeds to step S56. In step S56, the destination sub-address recognizing unit 15 is activated, and the destination sub-address recognizing unit 15 determines whether there is destination sub-address information. Here, if there is no destination sub address information, step S58
To display a normal incoming call and perform normal call processing.

On the other hand, if there is destination sub-address information, the process proceeds to step S60, where "*" is added to the head of the destination sub-address information.
It is determined whether or not there is. If there is no "*" at the beginning, the process proceeds to step S62, where the destination sub-address information is determined to be a numeric message, and is converted into a number.
It is stored in M24 and displayed on the display unit 25.

On the other hand, "*" is added to the head of the destination subaddress information.
If there is, the process proceeds to step S64, and it is determined whether the next to the head “*” of the destination sub address information is “0”. Then, if the next to the first “*” is “0”,
Proceeding to step S66, the caller number converter 19 is activated, and the caller number converter 19 converts the first two characters "* 0" and thereafter into a digit string (caller number) according to a predetermined conversion table. The number string is supplied to the control unit 22. Next, the digit string is collated by the telephone directory collating unit 20 as a caller number with a telephone number of a telephone directory registered in advance, and if there is a matching telephone number, it is registered in association with the telephone number. The caller name is retrieved and the caller number and the caller name are supplied to the controller 22. The caller number and the caller name are stored in the RAM 24 and displayed on the display unit 25. In this case, the caller number is a telephone number (for example, a telephone number of a company, a home, or a pager) input by the user on the calling side.

On the other hand, if the first two characters of the destination subaddress information are not "* 0", the process proceeds to step S68 shown in FIG. 5, and the caller number added to the call setting message stored in step S54 is displayed. 25. Also in this case, as in step S66 described above, if the telephone number matches the telephone number in the telephone directory, the caller name registered in association with the telephone number is displayed together with the caller number.
Next, the process proceeds to step S70, and it is determined whether the next to the head “*” of the destination sub address information is any of “2”, “4” or “6”. If the first two characters of the destination sub address information are any of "* 2", "* 4", and "* 6", the process proceeds to step S72, and performs a conversion process corresponding to each.

That is, when the first two characters are “* 2”, the free character conversion unit 16 is activated, and the free character conversion unit 16 converts the subsequent code into a character string according to a predetermined table. The character string is stored in the RAM 24, and is displayed as a free message on the display unit 25.
Will be displayed. If the first two characters are “* 4”, the fixed phrase conversion unit 17 is activated, and the fixed phrase conversion unit 17 converts the subsequent code into a fixed phrase according to a predetermined table. The fixed phrase is stored in the RAM 24 and displayed on the display unit 25. Next, when the first two characters are "* 6", the pictograph conversion section 18 is activated, and the pictograph conversion section 18 converts the subsequent codes into pictographs according to a predetermined table. The pictogram is also stored in the RAM 24 and displayed on the display unit 25 in the same manner.

On the other hand, the head of the destination sub address information is "*".
However, if the next is not any one of "0", "2", "4", and "6", the process proceeds to step S74, where the code thereafter is determined to be a numeric message, and is converted into a numeric message. After that, the information is stored in the RAM 24 and the display unit 2
5 is displayed.

As a result, "* 0" is added to the destination subaddress information.
When "*" is added, the following data is displayed as a caller number, and when "* 2, * 4, * 6" is added, the following data can be converted into a predetermined character and displayed. For this reason, a terminal that does not have a caller ID notification function, such as an ISDN public terminal, or a telephone number that has a caller ID notification function but is not a telephone number set in its own terminal (for example,
Even when it is desired to notify a company number, a home number, or a pager telephone number) as a caller number, the caller number can be displayed or a message can be received from a terminal having no message transmission function.

In the above embodiment, the pager function and P
Although the composite terminal has the HS terminal function, the present invention is not limited thereto, and the composite terminal may have a pager function and a mobile phone function. Instead of searching for a reply message based on the telephone number transmitted from the other party, a name may be transmitted from the other party and the telephone number and the reply message may be searched based on the name. further,
The multifunction terminal has a timekeeping function, and adds the time when the pager message was received to the reply message when responding,
For example, a pager of the other party may display "10:35 Nikkei Trim" and inform the other party of the reception time of the pager message. In the above embodiment, the destination sub-address is used, but the source sub-address may be used.

[0038]

According to the first aspect of the present invention, when a call is originated, the originating terminal adds data to the call setting signal and adds a code for identifying the type of the data to the incoming call. Side, and the terminal on the receiving side receives the call setting signal, and converts the data added to the call setting signal based on the added code so as to output the data.
Even if the terminal on the calling side and the terminal on the receiving side are terminals in different communication networks, there is an advantage that messages and caller IDs can be exchanged with each other.

According to the second aspect of the present invention, the data and the code to be added to the call setting signal are attached to at least the subaddress indicating the slave unit of the terminal on the calling side or the receiving side. In addition, there is an advantage that a message can be received even in an ISDN terminal or an ISDN public terminal which does not originally have a message notification function.

According to the third aspect of the present invention, the data includes at least a caller number, a numeric message,
Since any one of the free text message, the fixed text message, and the pictograph message is provided, an advantage is obtained that an optimum message can be transmitted according to the situation and the operation can be simplified.

According to the fourth aspect of the present invention, the call setting signal generating means is provided for identifying the message input from the input means and the type of the message in the call setting signal transmitted to the called terminal. And a call setting signal is generated, and when there is a call instruction by the call instruction means,
When the call is instructed by the calling means, the call setting signal is transmitted to the terminal on the receiving side. Therefore, even if the terminal on the calling side and the terminal on the receiving side are terminals of different communication networks, , A message and a caller ID can be transmitted.

According to the fifth aspect of the present invention, a message and a call setup signal to which a code for identifying the type of the message are added are received by the receiving means, and the message reproducing means receives the call setting signal. Since the message is reproduced based on the code for identifying the type of the received message, even if the terminal on the calling side and the terminal on the receiving side are terminals of different communication networks, the message and the caller ID are not changed. Can be received.

According to the invention described in claim 6, the message is at least one of a caller number, a numeric message, a free text message, a fixed text message, and a pictogram message. The advantage is that the message can be sent and the operation can be simplified.

According to the seventh aspect of the present invention, when the message received by the receiving means is a caller number, at least the caller number and the name corresponding to the caller number are checked by the collating means. And a caller name corresponding to the received caller number and the caller number corresponding to the received caller number based on the result of the check by the checker. Therefore, there is an advantage that it is possible to know in more detail the counterpart of the terminal on the calling side.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a PHS terminal that is a digital communication terminal according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the digital communication terminal at the time of calling.

FIG. 3 is a flowchart for explaining the operation of the digital communication terminal at the time of calling.

FIG. 4 is a flowchart for explaining the operation of the digital communication terminal when receiving a call;

FIG. 5 is a flowchart for explaining the operation of the digital communication terminal when receiving a call;

[Explanation of symbols]

 ANT antenna 10 transmitting / receiving unit (calling means, receiving means) 11 communication control unit (calling means, receiving means) 12 voice processing unit 13 speaker 14 microphone 15 receiving sub-address recognition unit (receiving means) 16 free character conversion unit (message playback) Means 17 Fixed form conversion unit (message playback unit) 18 Pictogram conversion unit (message playback unit) 19 Caller number conversion unit (message playback unit) 20 Phonebook matching unit (database, matching unit) 21 Key input unit (input unit) , Call instructing means) 22 control unit (call setting signal generating means) 23 ROM 24 RAM 25 display unit (message reproducing means)

Claims (7)

[Claims] 1. A communication system for communicating between terminals connected to a communication line network wirelessly or by wire, wherein a calling terminal adds data to a call setting signal when calling and sets a type of the data. The terminal on the receiving side receives the call setup signal, converts the added data on the basis of the added code, and outputs the converted data. A communication system characterized by the above-mentioned. 2. The communication system according to claim 1, wherein the data and code added to the call setting signal are attached at least to a sub-address indicating a slave unit of the terminal on the calling side or the called side. . 3. The communication system according to claim 1, wherein the data is at least one of a caller number, a numeric message, a free text message, a fixed text message, and a pictograph message. 4. An input means for inputting a message to be transmitted to the other party, and a call setting signal generation for adding, to a call setting signal, the message input from the input means and a code for identifying the type of the message. Means, a call instructing means for instructing a call, and a call means for transmitting a call setting signal generated by the call setting signal generating means when a call is instructed by the call instructing means. A digital communication terminal, characterized in that: 5. A receiving means for receiving a message and a call setup signal to which a code for identifying the type of the message is added, and reproducing the message based on the code for identifying the type of the message received by the receiving means. A digital communication terminal, comprising: 6. The digital communication terminal according to claim 4, wherein the message is at least one of a caller number, a numeric message, a free text message, a fixed text message, and a pictograph message. 7. A database storing at least a plurality of caller numbers and a name corresponding to the caller number, and, if the message received by the receiving means is a caller number, a caller number in the database. And a message reproducing unit that reproduces the name of the caller corresponding to the caller number together with the received caller number based on the result of the comparison by the check unit. The digital communication terminal according to claim 5, wherein