JP3123570B2 - Communication terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal such as a telephone or a facsimile machine which is used by connecting to a communication network capable of transmitting and receiving a calling sub-address at the time of calling and receiving.

[0002]

2. Description of the Related Art ISDN (Integrated Services Digital Neural Network)
In the twork (Integrated Services Digital Network), it is possible to indicate that a call originates from a specific terminal by using a calling subaddress, which is one of the information elements defined in the CCITT (International Telecommunication and Telephone Consultative Committee) I series recommendations. Further, the calling sub-address can be used for setting personal identification information such as the name of the sender, that is, personal authentication information. This solves the inconvenience of not being able to communicate from which terminal the call originated and from whom the call originated unless a communication path was formed as seen in the existing analog telephone network. You can now do this when calling before establishing a communication path.

That is, in ISDN, one line is 2
B channels (an information channel for transmitting call information,
(For example, a transmission speed of 64 kb / s) and one D channel (a signal channel for transmitting call control information, for example, a transmission speed of 16 kb / s), and the capacity of the D channel for transmitting call control information is sufficient. Therefore, in addition to the minimum necessary control information such as the telephone number of the other party, for example, the subscriber number of the caller (caller telephone number) and arbitrary information of a predetermined length (information between users) are also included. It can be transmitted as call control information. This call control information is transmitted before the called party (the receiving party) answers.

In a telephone connected to such an ISDN, a telephone number of a caller to be answered is stored in a built-in memory in advance, and D is set before answering when receiving a call.
A function is provided for responding only when the caller number matches the caller number transmitted on the channel, so that, for example, a call from a solicitor or a mistaken call can be prevented.

[0005] In a communication terminal for setting a specific terminal and setting personal authentication information as described above, the subaddress type code, which is one of the functions constituting the originating subaddress, is an IA5 character recommended by a telecommunications carrier. The NSAP format that uses is widely used.

[0006]

As in the above-mentioned conventional communication terminal, it is necessary to use the NSAP format as the subaddress type code and to make a call for specifying the terminal at the time of calling before forming a communication path. When not only information but also information specifying an individual such as the name of the sender, that is, personal authentication information, information of two different types is mixed and defined. There is a disadvantage that it is difficult to determine whether the call is from a terminal or a call that transmits personal authentication information.

The problem to be solved by the present invention is that when a specific terminal is selected, a sub-address type code is used.
When using the NSAP format and setting information that identifies an individual, such as the name of the caller, use a user-specific subaddress format as the subaddress type code to clearly identify the transmission that identifies the terminal and the transmission that transmits personal authentication information. In the case of outgoing transmissions that convey personal authentication information, the outgoing call must be clearly declared to be who you are, and the called party must know when the incoming call comes from. It is an object of the present invention to provide a communication terminal capable of variously selecting an incoming call response method.

[0008]

According to the present invention, in order to solve the above-mentioned problems, a communication terminal according to claim 1 sets a sub-address type code as shown in the claim correspondence diagram of FIG. Code designation section 10 for
An information code input unit 60 for inputting a sub-address information code; and an information code recording unit for storing the sub-address information code input by the information code input unit 60 for each type set by the type code specification unit 10 50.

Further, in the communication terminal according to the second aspect, as shown in the claim correspondence diagram of FIG. 2, a personal authentication information list recording unit 130 storing a list of personal authentication information,
Originating sub-address detecting section 110 for detecting an originating sub-address from the incoming signal received by the incoming signal receiving section 80
A type code detecting unit 115 for detecting a sub-address type code from the calling sub-address, an information code detecting unit 120 for detecting a sub-address information code from the calling sub-address, and a sub-address type code detected by the type code detecting unit 115. In the case of a user-specific sub-address format, a collation unit 140 for collating the sub-address information code detected by the information code detection unit 120 with a list of personal authentication information stored in the recording unit 130 is provided.

[0010]

According to the above arrangement, when a caller specifies who he / she is and sends a call, the caller sends a call with a calling subaddress indicating personal authentication information such as his / her name.
At this time, a user-specific subaddress format is selected as a subaddress type code, which is one function of the calling subaddress.

Upon receiving the calling sub-address, the called communication terminal detects the sub-address type code from the calling sub-address, and identifies that the user-specific sub-address format is used as the sub-address type code. The obtained sub-address information code is compared with a preset personal authentication information list.

[0012] This allows the caller to make a call with his / her name directly in addition to the subscriber number to indicate who he is when calling. Of course, when the caller selects a specific terminal, the NSAP format is used. In addition, the called party uses NSAP as the sub-address type code.
The use of both sub-address format and user-specific sub-address format supports both the very general use of sub-addresses, such as selecting a specific terminal, and the use of setting personally-identifying information such as the name of the caller. Comes out. Furthermore, if the sub-address type code is in the user-specific sub-address format, the receiver can know who the caller is before responding to the incoming call. Will be possible.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a communication terminal according to the present invention will be described below in detail with reference to the drawings. The embodiment shown in FIG. 3 is capable of providing a service for notifying the calling subaddress.
This is an example applied to a communication terminal connected to a communication network such as an ISDN network.

The communication terminal includes a CPU 1 for executing a control program in this embodiment, a system bus 2 of the CPU 1 including a data bus, an address bus, a control bus, and the like.
A ROM 3 storing a control program according to the present embodiment;
A RAM 4 for storing information elements of call control information such as a call setup message, a code table of calling sub-addresses shown in FIG. 9, a subscriber's subscriber number, that is, a called number, and sub-address type codes of NSAP format and user-specific sub-address format. RAM 41, which stores personal information such as the name of the caller as a sub-address information code, and a RAM 42 which stores the number of the calling terminal, designates a sub-address type code, and uses personal information such as the name of the caller and the number of the terminal as a sub-address information code. The operation unit 5 for inputting and making a call operation such as dialing, confirming the designation state of the sub-address type code stored in the RAM 41,
It comprises a display section 6 for displaying the contents of the sub-address information code stored in M42, a communication path 90, and a network interface section 100 with an ISDN network.

The ISDN network includes a signal channel D for transmitting and receiving call control information such as a call setup message and a response message at the time of transmission and reception, and two information channels B1 for transmitting information between terminals. B2
Provide the channel to the communication terminal. The call setup message is composed of various information elements such as a calling party number, which is the subscriber number of the caller, a called party number, which is the subscriber number of the called party, and a calling subaddress indicating the number of the calling terminal.

The originating subaddress is configured as shown in the code table of FIG. 7 defined in the CCITT I series recommendation. That is, in octet 1, a code indicating the calling subaddress is described as an information element identifier. In octet 2, the number of octets, which is the content length of the source subaddress, is
The fifth, sixth, and seventh bits of octet 3 describe the sub-address type, and octet 4 and following describe the contents of the sub-address information.

The subaddress type code in the NSAP format and the subaddress type code in the user-specific subaddress format stored in the RAM 41 correspond to the fifth, sixth, and seventh bits of octet 3 in the code table of the source subaddress shown in FIG. Are "000" and "010", respectively.
The network interface unit 100 shown in FIG. 3 separates / combines a signal channel D channel provided by the ISDN network and two information channels B1 and B2 channels, and transmits call control information to / from the CPU 1 via the D channel. Give and receive. Further, information is exchanged between terminals via a B1 channel or a B2 channel with a communication path 9 including a CODEC, a transmitter, a receiver, and the like. CPU1 is RO
It exchanges call control information with the network interface unit 100 via the system bus 2 based on the program stored in M3, and controls the overall operation of the communication terminal.

The RAM 4, RAM 41, RAM 42
May be configured by allocating a single RAM storage area. Next, an operation at the time of calling in the above-described embodiment will be described with reference to a flowchart shown in FIG. First, when the call button of the operation unit 5 is pressed and the subscriber number of the other party is dialed, the CPU 1 stores the dial number in the called number area of the RAM 41, and in step 401 of FIG. Wait for button press. If the calling sub-address button is not pressed within the time determined by the CPU 1, a normal calling process without attaching the calling sub-address is performed in step 402.

When the sub-address button is pressed, it is determined in step 403 whether the sub-address type code specified by the preset sub-address type specifying switch is in the NSAP format or the user-specific sub-address format. At 404,
Performs normal calling terminal designation calling processing. That is, the CPU 1 writes the sub-address information code stored in advance in the RAM 42 as the number of the calling terminal in the code table of the destination sub-address in the RAM 41, and when the start button of the operation unit 5 is pressed, the other stored in the RAM 4 in advance. A call setup message is formed together with the information elements, and is transmitted to the D channel, which is a signal channel of the ISDN network, via the network interface unit 100.

If the sub-address type code is in the user-specific sub-address format, the CPU 1
The caller's name stored in the AM 42 is extracted, and subsequently, in 406, a calling process with the caller's name attached is performed. That is, the CPU 1 writes the extracted sender's name as a sub-address information code in the destination sub-address code table of the RAM 41 and, when the start button of the operation unit 5 is pressed, combines the information with other information elements stored in the RAM 4 in advance. Then, a call setup message is formed and transmitted to the D channel which is a signal channel of the ISDN network via the network interface unit 100.

FIG. 5 is a diagram showing the configuration of another embodiment of the communication terminal according to the present invention. The communication terminal includes a CPU 1 for executing a control program according to the present embodiment, a system bus 2 of the CPU 1 including a data bus, an address bus, and a control bus, a ROM 3 storing the control program according to the present embodiment, a calling subaddress received at the time of an incoming call. , A RAM 41 for storing a sub-address type code in NSAP format and a user-specific sub-address format, a RAM 42 for recording personal information such as the name of the other party and a subscriber number of the transfer destination, and a name of the other party. An operation unit 5 for inputting personal information and confirming the recorded contents of the RAM 42, a display unit 6 for displaying personal information such as the name of the other party stored in the RAM 42, and a calling unit 7 for notifying a call such as generation of a ringing tone. , Communication path 90,
A communication path 95 for communication with the communication terminal of the transfer destination, a coupling unit 80 connecting the communication path 90 and the communication path 95 for transfer,
A recording unit 150 for automatically recording the message of the other party,
It comprises a network interface unit 100 with an ISDN network.

The network interface unit 100 separates and combines the signal channel D provided by the ISDN network and the two information channels B1 and B2, and exchanges call control information with the CPU 1 via the D channel. I do. Also, the network interface unit 100 is B1
Information is exchanged between terminals via a channel and a B2 channel between a communication path 90 and a communication path 95 including a CODEC, a transmitter, a receiver, and the like.

The CPU 1 transmits and receives call control information to and from the network interface unit 100 via the system bus 2 based on a program stored in the ROM 3, and controls the entire operation of the communication terminal. In addition, RAM4, RAM
Of course, the RAM 41 and the RAM 42 may be configured by allocating a storage area of a one-chip RAM.

The NSAP format sub-address type code and the user-specific sub-address format sub-address type code stored in the RAM 41 are the same as those shown in FIG.
"000" and "010", respectively, corresponding to the fifth, sixth, and seventh bits of octet 3 in the code table of the source sub-address defined by the I series recommendation. Next, the operation at the time of an incoming call will be described with reference to the flowchart shown in FIG.

The network interface unit 100 receives a call setup message from the D channel of the ISDN network delivered from the other communication terminal, and
Send it to PU1. Upon receiving this call setup message, the CPU 1 detects the presence or absence of the calling subaddress in step 601 of FIG. If the call setup message does not include the calling subaddress, in step 602,
A normal incoming call process for generating a ringing tone of the calling unit 7 as usual is performed. If the calling subaddress is included, the calling subaddress detected in step 601 is divided into a subaddress type code and a subaddress information code in step 603 and stored in the RAM 4.

Further, at step 604, the CPU
In step 603, the sub address type code stored in the RAM 4 is compared with the sub address type code already written in the RAM 41 in step 603. If the sub-address type code matches the NSAP format, it is processed in step 605 as a normal incoming terminal-designated incoming call. For example, a special sound is generated to notify that the calling sound of the calling unit 7 is an incoming call specified by the calling terminal.

If the sub-address type code matches the user-specific sub-address format, the flow advances to step 606. Then, the CPU 1 determines in step 603 that RA
The sub address information code written in M4 is stored in RAM
42 is compared with a list of personal information such as the name of the other party already written. Subsequently, at step 607, C
The PU 1 selects a predetermined response method for personal information such as the name of the matched partner and sets a predetermined function to an operating state.

For example, selection is made in accordance with the incoming call response flowchart shown in FIG. In this operation example, the personal authentication information of the caller stored in the communication terminal in FIG. 5 is divided into three groups according to the importance of the receiver, and the subaddress information code of the received calling subaddress is set. C if it matches the personal authentication information of the first group
The PU 1 makes a normal call for generating the ringing sound of the calling unit 7 as usual, and when the PU1 coincides with the personal authentication information of the second group, the CPU 1 causes the recording unit 150 to communicate with the communication path 90 via the system bus 2. , A recording state is formed to automatically record the other party's message. If the personal authentication information does not match any of the first and second group personal authentication information, C is set.
PU1 sends a disconnection message via network interface unit 100 and rejects the incoming call.

FIG. 8 is a flowchart of an incoming call response of the communication terminal shown in FIG. 5 when the called party is absent. That is, the personal authentication information of the other party's sender is stored in advance in three groups according to the importance of the called party, and the subaddress information code of the received calling subaddress matches the personal authentication information of the first group. In this case, the CPU 1
Using the subscriber number of the transfer destination stored in the communication path 9
5 and a communication path 95 in response to the response of the other party.
And the communication path 90 are closed, and the coupling unit 80 is operated to couple the communication path 90 and the communication path 95 to set the transfer state. If the personal authentication information matches the personal authentication information of the second group, the CPU 1 connects the recording unit 150 to the communication path 90 via the system bus 2 to form a recording state, automatically records the message of the other party, and responds to the answering machine. However, if the personal authentication information does not match any of the first and second groups, the CPU 1 sends a disconnection message via the network interface unit 100 and rejects the incoming call.

The above is an example in which the method of answering the incoming call is selected in step 606 of FIG. 6 based on the result of comparing the received sub-address information with a list of personal information such as the name of the other party stored in advance. It goes without saying that the way of answering the incoming call is not limited to these.

[0031]

As described above, according to the present invention,
This makes it possible to clearly distinguish between a case in which a specific terminal is selected for transmission and a case in which information for specifying an individual such as the name of the caller is set and transmission is performed. As a result, in the case of transmission for transmitting personal authentication information, it is possible to clearly disclose who is who you are. In addition, the called party can know at the time of the incoming call from whom the incoming call is made in a form clearly distinguished from the case of selecting a specific terminal, so that it is possible to variously select the way of answering the incoming call.

[Brief description of the drawings]

FIG. 1 is a claim correspondence diagram according to claim 1 of the present invention.

FIG. 2 is a drawing corresponding to claim 2 of the present invention.

FIG. 3 is a block diagram showing a configuration of a communication terminal according to one embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of a communication terminal according to an embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a communication terminal according to another embodiment of the present invention.

FIG. 6 is a flowchart illustrating an operation of a communication terminal according to another embodiment of the present invention.

FIG. 7 is a flowchart for explaining an operation example of an incoming call response of the communication terminal shown in FIG. 5;

8 is a flowchart for explaining an operation example of an incoming call response when the communication terminal shown in FIG. 5 is absent.

FIG. 9 is a diagram showing a code table of an information element destination subaddress used in each embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... CPU 2 ... System bus 3 ... ROM 4 ... RAM 5 ... Operation part 6 ... Display part 7 ... Calling part 10 ... Sub-address type code specification part 20 ... Sub-address type code selection part 41 ... ... RAM 42... RAM 50... Sub address information code recording section 60... Sub address information code input section 80... Coupling section 90... Communication path 95... Communication path 100 network interface section 110. 115... Sub-address type code detecting section 120... Sub-address information code detecting section 130... Personal authentication information list recording section 140... Collating section 150.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/00 H04M 1/24-1/62 H04M 1/66-1/82 H04M 11/00-11 / Ten

Claims (4)

(57) [Claims] An originating sub-ad included in a call setup message
Sub-address type code, one of the
A communication device in a communication network using an exchange connection control method capable of selecting two types of a first sub-address format and a second sub-address format , wherein a type code specifying unit for setting a sub-address type code; includes an information code input unit for inputting a sub-address information code, the sub-address information code entered by said information code input unit, and a data code recording unit for recording by type set by the type code specifying section A communication device characterized by the above-mentioned. 2. A communication device, comprising : a recording unit for recording a list of personal authentication information; a calling subaddress detecting unit for detecting a calling subaddress from a received incoming signal; and a type code for detecting a subaddress type code from the calling subaddress. A detection unit; an information code detection unit that detects a sub-address information code from the originating sub-address; and if the sub-address type code detected by the type code detection unit is the second sub-address format , the information code detection unit the communication apparatus according to claim 1, characterized by comprising: a collation section that collates the list of personal authentication information recorded in the recording unit with the detected sub-address information encoded by. 3. The first sub-address format is NSAP.
And the second sub-address format is the communication device.
And a format specific to the user.
Is the communication device according to 2. 4. The communication device according to claim 1, wherein the communication network is an ISDN.