JPH044647A - Isdn terminal equipment - Google Patents

Abstract

PURPOSE:To realize a comfortable operating environment by storing a caller party number sent from a network with the operation of an incoming call reject setting key to an outgoing address storage section and not activating a ringer when an incoming call by a same caller number. CONSTITUTION:When a talking is started with a caller and the caller is a malicious caller such as making a mischievous call, the user depresses an incoming call reject setting key 15 and the user interrupts the phone call. A central processing unit 13 sends a caller number displayed on an LCD 14 to a caller address storage section 16. The caller address storage section 16 stores the caller number. In the presence of an incoming call, the central processing unit 13 inputs an outgoing address stored in the caller address storage section 16. Then the stored outgoing address is sent to an outgoing address comparator section 17 and when the address is coincident with the stored number, a ringer 12 is not activated and a message rejecting the arrived call to a network 1 via a line interface circuit 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an ISDN terminal device connected to an ISDN network or integrated digital service network (hereinafter abbreviated as the network).

[Prior Art] FIG. 2 is a block diagram showing an example of a conventional ISDN terminal device. In the figure, a network (1) has two channels (Bl, 82
channel) switch section (3) and central processing unit (13)
) are connected.

A codec (4) and a data interface (5) for connecting the switch unit to a data terminal equipment (DTE) (not shown) are connected to the switch unit (3), and an audio circuit (6) is connected to the codec (4). A handset (7) is connected via.

On the other hand, the central processing unit (13) has an input/output (Ilo)
A dial key (11) and a ring (12) are connected via a controller (10), and this central processing unit (13) is connected to an LCD (14) as a display and a switch section (3). ing.

The above I10 controller (10) is a central processing unit (13).
), the ringer (12) is driven when a call is received, and key information from the dial key (11) is sent to the central processing unit (13) when a call is made.

Further, the LCD (14) displays the destination numbers sent from the central processing unit (13), that is, the numbers input to the dial keys (11) in the order in which they were input.

Next, the operation will be explained. When receiving a call, the signal transmitted by the network (1) is divided into a D channel control signal and a B channel information signal in the line interface circuit (2), and the D channel control signal is sent to the central processing unit (13).
) and the B channel information signal is sent to the switch section (3).

The switch section (3) separates the channel into a B1 channel and a B2 channel, which are distributed to a codec (4) and a data interface (5) in response to a command signal from a central processing unit (13).

The B channel information signal distributed to the codec (4) is digital-analog converted (or analog-digital converted) by the codec (4), and is supplied to the handset (7) through the audio circuit (6) for voice communication. used. On the other hand, the B channel information signal distributed to the data interface (5) is used for communication with the data terminal device via the data interface (5).

The central processing unit (13) is a line interface circuit (2)
The response to the call control message shown in FIG. 3 from the network (1) obtained through the network (1) is transmitted to the network (1), and the originating address, that is,
The I10 controller (10) controls the decoding of the destination telephone number and displays it on the LCD (14).
The ringer (12) is driven through the ringer (12).

During transmission, the switch unit (3) sends the B1 channel and B2 channel to the network (1) via the line interface circuit (2), and the central processing unit (13) sends a call control message via the line interface circuit (2). is transmitted using the D channel.

Note that explanations of other information such as the protocol identifier will be omitted here.

[Problems to be Solved by the Invention] Since the conventional ISDN terminal device is configured as described above, when a call is received, the destination number is displayed on the LCD and a ringer is sounded. Therefore, there is a problem in that the ringer rings and is noisy even when a destination number to which the user does not want to respond is displayed.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an ISDN terminal device that does not make a ringer sound when the destination of the call is a person who does not want to respond.

[Means for Solving the Problems] The ISDN terminal device according to the present invention has a calling address memory that stores a calling address indicating a destination number sent from the network when a call is received upon receiving an operation signal of an incoming call rejection setting key. The caller address stored in the caller address storage unit is compared with the caller address sent from the network for each incoming call, and if a match is detected, call rejection processing such as not ringing the ringer is performed. It is equipped with a processing section.

[Function] When the ISDN terminal device of the present invention detects a destination number for which incoming call rejection has been set, the calling address comparison unit does not ring a ringer and accepts an incoming call from a destination having a pre-stored call rejection calling address. To provide a comfortable usage environment without making the ringer ring even if there is a problem.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to FIG. 1, in which the same parts as in FIG. In Fig. 1, the I10 controller (10) has a key (15) as a call rejection setting member.
is connected to the central processing unit (13), and a source address storage section (16) and a source address comparison section (17) are connected to the central processing unit (13).

Note that the key (15) serving as the incoming call rejection setting member may be a switch.

Next, the operation of the above embodiment will be explained. When receiving a call,
The signal transmitted by the network (1) is divided into a D channel control signal and a B channel information signal in the line interface circuit (2), the D channel control signal is sent to the central processing unit (13), and the B channel information signal is sent to the central processing unit (13). The signal is sent to the switch section (3).

The switch section (3) separates the channel into a B1 channel and a B2 channel, which are distributed to a codec (4) and a data interface (5) in response to a command signal from a central processing unit (13).

The B channel information signal distributed to the codec (4) is digital-analog converted (or analog-digital converted) by the codec (4), and is supplied to the handset (7) through the audio circuit (6) for voice communication. used. On the other hand, the B channel information signal distributed to the data interface (5) is used for communication with the data terminal device via the data interface (5).

The central processing unit (13) is a line interface circuit (2)
The response to the call control message from the network (1) obtained via the network (1) is transmitted to the network (1), and the calling address, that is, the telephone number of the destination, is decoded from the call control message and displayed on the LCD ( 14) and the ringer (1) via the 110 controller (10).
2) Drive.

During transmission, the switch unit (3) sends the 81 channel and B2 channel to the network (1) via the line interface circuit (2), and the central processing unit (13) sends a call control message via the line interface circuit (2). is transmitted using the D channel, and the above operation is the same as that of the conventional device shown in FIG.

When the call arrives, the central processing unit (13) recognizes the originating address, ie, the destination number, from the call control message and displays it on the LCD (14). At this time,
If even one number is stored in the calling address storage unit (16), the central processing unit (13)
- Ring the ringer (12) through the ringer (10).

When the user hears the ringer (12) and lifts the handset (7) like a normal telephone, the audio circuit (6)
, is connected to the network (1) via the codec (4), switch unit (3) and line interface circuit (2),
You can talk to the other party using the 1 or B2 channel.

In this way, if a call is started with the other party and the caller is unpleasant, such as a "prank caller", the user presses the call rejection setting key (15), and then the user disconnects the call. do.

At this time, when the central processing unit (13) recognizes that the incoming call rejection setting key (15) is turned on via the I10 controller (10), the central processing unit (13) stores the call destination number displayed on the LCD (14) as the calling address. (16). The originating address storage section (16) stores the originating address, that is, the destination number.

After that, if a call is received again from the call destination set to reject calls or from another call destination, the central processing unit (13
) displays the calling address in the call control message from the network (1) on the LCD (14)', and at the same time inputs the calling address stored in the calling address storage section (15).

Then, the two originating addresses, namely the originating address currently sent from the network (1) and the originating address in the past sent from the network (1), are stored.
6) The originating address stored in the originating address comparison section (
17).

The originating address comparator (17) compares the two originating addresses and sends match/mismatch information to the central processing unit (13). If it is matching information, the central processing unit (13)
A message rejecting an incoming call is notified to a network (1) via a line interface circuit (2) without ringing a ringer (12). Furthermore, if the information is inconsistent, the ringer (12) is sounded as per normal processing.

In the above embodiment, the call rejection setting key is pressed during a call with the other party, and the number of the other party is stored as a call rejection number, or the number of the other party displayed on the LCD is set while the ringer is ringing, that is, while the call is being received. Even if the user presses the call rejection setting key at the time when he or she determines that he/she wants to reject the call from that number, the same operation is performed and the same effect as in the above embodiment is achieved.

Furthermore, since the system is configured to store the number of the destination for incoming call rejection by pressing a setting key or switch, the destination of the currently incoming call or conversation can be registered as the incoming call rejection number with a simple operation during a call or a call. In this case, multiple call rejection numbers can be stored.

[Effects of the Invention] As described above, according to the present invention, the destination number sent from the network is stored in the calling address storage section by operating the incoming call rejection setting key, and if the destination number is the same as the stored destination number. Since the system is configured so that the ringer does not ring when there is an incoming call from the destination number, an ISDN terminal device that provides a comfortable usage environment can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an 15ND terminal device according to an embodiment of the present invention, FIG. 2 is a block diagram showing a conventional ISDN terminal device, and FIG. 3 is an explanatory diagram of the contents of a call control message sent from the network. . In the figure, (1) is the network, (2) is the line interface circuit, (3) is the switch section, (4) is the codec, (6) is the
) is the audio circuit, (7) is the handset, (10) is the input/output controller, (11) is the dial key, (12) is the ringer, (13) is the central processing unit, (14) is the LCD, (1
5) is an incoming call rejection setting key, (16) is a calling address storage section, and (17) is a calling address comparing section. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Agent: Patent attorney Yoshi 1) Kenji (2 others)

Claims (1)

[Scope of Claims] An ISDN terminal device connected to an ISDN digital network, comprising: an incoming call rejection setting key which outputs an incoming call rejection signal when operated; and an incoming call rejection signal outputted by operating the incoming call rejection setting key. When a call is received, the calling address storage unit stores the calling address, which is the destination number at the time of the current incoming call, and the calling address storage unit stores the calling address at the time of each incoming call. The device is characterized by comprising a calling address comparison unit that compares calling addresses, and an incoming call rejection processing unit that controls not to perform incoming call processing if both addresses match according to a comparison result of the calling address comparing unit. ISDN terminal equipment.