JPH05336253A - Isdn terminal adaptor - Google Patents

Abstract

PURPOSE:To prevent the conflict against the service provided by a switchboard by providing a setting switch which has a normal operation mode as well as a mode that stores the address and subaddress numbers of its own received from a telephone in a storage without performing the call setting control to an ISDN subscriber circuit. CONSTITUTION:A data link 40 serving as a transmitter means and an S/T bus I/F circuit 50 multiplex the calling and number information on a D channel with the information on the B1 and B2 channels and transmits these multiplexed information. A setting switch 120 has a normal operation mode and an address Ad setting mode where the address and the subaddress of its own are stored. In the Ad setting mode, a central controller 10 recognizes this setting mode. Then the controller 10 receives the calling information from a telephone 4 via a telephone circuit 100 and a telephone control circuit 300 and stores the Ad number information in a storage 20 without transmitting them to a switchboard 3. Thus the Ad can be set with no conflict produced to the service offered by the switchboard 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention connects an ordinary telephone and performs interface conversion with an ISDN subscriber line.
Regarding the SDN terminal adapter.

[0002]

2. Description of the Related Art In the prior art, when a self address and a self subaddress are set, a special code is entered from the dial key of the telephone or hooking information is sent while the interface with the ISDN subscriber line is already established. After notifying the terminal adapter to input the self-address and the self-sub-address, the self-address number and the self-sub-address number were input from the telephone and the terminal adapter stored the numbers.

FIG. 3 is a block diagram showing the structure of a conventional example. As shown in FIG. 3, the terminal adapter 1 is connected to the network terminating device 2, and the network terminating device 2 is the IS of the exchange 3.
Connect with DN basic interface. In the terminal adapter 1, the 2B + D channel from the network terminator 2 is S /
The T bus interface circuit 50 divides the B1 and B2 channels into the D channel, the B1 and B2 channels are sent to the switching circuit 60, and the control information on the D channel is sent to the central control unit 10 via the data link 40. Be done. The switching circuit 60 sends one of the received 64 Kbps digital signals on the B1 and B2 channels to the telephone circuit 100, and the telephone circuit 100 receives the received 64 Kb.
The digital signal of ps is converted into a voice signal and sent to the telephone 4. On the other hand, the voice signal from the telephone 4 is converted into a digital signal of 64 Kbps by the telephone circuit 100, the telephone circuit 100 transmits the digital signal of 64 Kbps to the switching circuit 60, and the switching circuit 60 receives the 64 signal.
The S / T bus interface circuit 50 is provided by loading a Kbps digital signal on either the B1 or B2 channel.
Send to. The S / T bus interface circuit 50 multiplexes the B1 and B2 channels together with the control information transmitted from the central control unit 10 and placed on the D channel by the data link 40, and transmits the multiplexed B1 and B2 channels to the exchange 3 via the network terminating device 2.

To send a tone to the telephone set 4, the central control unit 10 sends an instruction to the telephone set control circuit 30, and the telephone set control circuit 30 controls the tone transmitter 70 to set the telephone line circuit 10.
Tones are sent via 0. The ringer ringing upon receiving an incoming call to the telephone 4 sends an instruction from the central control unit 10 to the telephone control circuit 30, and the telephone control circuit 30 causes the ringer transmitter 90 to
To send a ringer signal to the telephone 4 via the telephone circuit 100. On the other hand, the tone signal from the telephone 4 is transmitted from the telephone circuit 100 to the tone receiver 80, the tone receiver 80 reads out the reception number from the received tone signal, and then, via the telephone control circuit 30, to the central control unit 10. Send the receiving number. The central controller 10 converts the received number and transmits it to the data link 40, and the data link 4
0 is sent to the S / T bus interface circuit 50 along with the control information of the D channel, and the S / T bus interface circuit 50 multiplexes it with the B1 and B2 channels and sends it to the exchange 3 via the network terminating device 2.

That is, as shown in FIG. 2, when the telephone 4 goes off-hook, the information is transmitted from the telephone circuit 100 to the tone receiver 80, and the central controller 10 is called via the tone receiver 80 and the telephone control circuit 30. Send information. The central controller 10 converts the received calling information and sends it to the data link 40. The data link 40 sends the control information of the D channel to the S / T bus interface circuit 50, and the S / T bus interface circuit 50 sends the control information to the B channel.
1 and B2 channels are multiplexed and transmitted to the exchange 3 via the network terminating device 2. When the telephone 4 sends its own address and own subaddress number information as a tone signal,
It is transmitted from the telephone circuit 100 to the tone receiver 80, and the tone receiver 80 reads out the number information from the tone signal and transmits the number information to the central control unit 10 via the telephone control circuit 30. The central controller 10 stores the received number in the storage device 20 and at the same time transmits it to the data link 40.
The data link 40 carries S / S on the control information of the D channel.
The data is transmitted to the T bus interface circuit 50, and the S / T bus interface circuit 50 multiplexes with the B1 and B2 channels and transmits to the exchange 3 via the network terminating device 2.

[0006]

As described above, in the conventional example, when the power is turned on by connecting to the ISDN subscriber line, I
Since the SDN interface call connection process is automatically performed, there is a drawback that special information and dial number input from the connected telephone are sent to the exchange, which conflicts with the service provided by the exchange.

The present invention eliminates such drawbacks, and provides an ISDN terminal adapter having means for preventing a conflict with the service provided by the exchange when setting a self address and a self subaddress from a telephone. To aim.

[0008]

According to the present invention, there is provided transmitting means for multiplexing calling information and number information on the D channel with information on the B1 and B2 channels and transmitting the multiplexed information to an ISDN exchange through a network terminating device. An ISDN terminal adapter comprising: a first means for storing the number information in a storage device; and a central controller including a second means for passing the calling information and the number information to the transmitting means. The central control unit is provided with a setting switch for setting one of them by operation, and when the setting switch is set in one mode, the first means is enabled and the second means is disabled, and the other is set. It is characterized by including a third means for enabling both the first means and the second means when the mode is set.

[0009]

[Function] After setting the mode of the setting switch to the self-address and self-subaddress setting state, the terminal adapter is powered on, and the self-address and the self-subaddress number from the telephone are set without performing call setting control with the ISDN subscriber line. It is stored in the storage device as it is.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of this embodiment. Figure 1
The terminal adapter 1 is connected to the network terminating device 2, and the network terminating device 2 is connected to the ISDN basic interface of the exchange 3, as shown in FIG. In the terminal adapter 1, the 2B + D channel from the network terminating device 2 is divided into the B1 and B2 channels and the D channel by the S / T bus interface circuit 50, and the B1 and B2 channels are sent to the switching circuit 60, and on the D channel. The control information is sent to the central controller 10 via the data link 40. Switching circuit 60 receives 64 Kbps on the received B1 and B2 channels.
One of the s digital signals is sent to the telephone circuit 100, and the telephone circuit 100 converts the received 64 Kbps digital signal into a voice signal and sends it to the telephone 4. On the other hand, the voice signal from the telephone 4 is converted into a digital signal of 64 Kbps by the telephone circuit 100, and the telephone circuit 100 switches the digital signal of 64 Kbps to the switching circuit 60.
Then, the switching circuit 60 puts the received digital signal of 64 Kbps on either the B1 or B2 channel and transmits it to the S / T bus interface circuit 50. The S / T bus interface circuit 50 multiplexes the B1 and B2 channels together with the control information transmitted from the central control unit 10 and placed on the D channel by the data link 40, and transmits the multiplexed B1 and B2 channels to the exchange 3 via the network terminating device 2.

To send a tone to the telephone set 4, the central control unit 10 sends an instruction to the telephone set control circuit 30, and the telephone set control circuit 30 controls the tone transmitter 70 to set the telephone set circuit 10.
Tones are sent via 0. The ringer ringing upon receiving an incoming call to the telephone 4 is transmitted from the central control unit 10 to the telephone control circuit 30.
The telephone control circuit 30 sends an instruction to the ringer transmitter 9
0 is controlled to send a ringer signal to the telephone 4 via the telephone circuit 100. On the other hand, the tone signal from the telephone 4 is transmitted from the telephone circuit 100 to the tone receiver 80, the tone receiver 80 reads out the reception number from the received tone signal, and the central control unit 10 passes through the telephone control circuit 30.
Send the reception number to. The central controller 10 converts the received number and transmits it to the data link 40, and the data link 40 sends it to the S / T bus interface circuit 50 along with the control information of the D channel, and the S / T bus interface circuit 50 It is multiplexed with the B1 and B2 channels and transmitted to the exchange 3 via the network terminating device 2. The setting switch 120 sets switching between the normal operating state and the self-address / self-sub-address setting state, the input circuit 110 reads out the setting state, and the input circuit 110 sends the setting state to the central control unit 10.

That is, in this embodiment, as shown in FIG. 1, the calling information and the number information on the D channel are multiplexed with the information on the B1 and B2 channels, and transmitted to the exchange 3 via the network terminating device 2. A data link 40 and an S / T bus interface circuit 50 which are transmitting means for transmitting, a first means for accumulating the number information in the storage device 20, and a second means for passing the calling information and the number information to the transmitting means. And a setting switch 120 for setting one of the two modes by operation as a feature of the present invention. The first means is enabled and the second means is disabled when the other mode is set, and the first means is set when the other mode is set. And including a third means for both enabling the second means.

Next, the operation of this embodiment will be described. Figure 1
When the setting switch 120 is set to the self-address and self-sub-address setting states, the central controller 10 receives the setting state of the setting switch 120 via the input circuit 110 when the power of the terminal adapter 1 is turned on as shown in FIG. Then, it recognizes that the setting switch 120 is set to the self address and self sub address setting states. When the telephone 4 is off-hook, the telephone circuit 10
0 receives and transmits to the tone receiver 80. The tone receiver 80 transmits the received calling information to the central controller 10 via the telephone control circuit 30. The central controller 10 recognizes from the received call information that the telephone set 4 has gone off-hook. When the telephone 4 sends out its own address and its own sub-address number as a tone, the telephone circuit 100 receives and sends them to the tone receiver 80. Tone receiver 80
Reads out the number information from the received tone signal and transmits the number information to the central control unit 10 via the telephone control circuit 30. The central controller 10 stores the received number information in the storage device 20.

Next, when the setting switch 120 is set to a normal operating state and the terminal adapter 1 is powered on,
The central controller 10 receives the setting state of the setting switch 120 via the input circuit 110 and recognizes that the setting switch 120 is set to the operating state. When the telephone 4 is off-hook, the telephone circuit 100 receives and transmits to the tone receiver 80. The tone receiver 80 transmits the received calling information to the central controller 10 via the telephone control circuit 30. The central control unit 10 transmits the received calling information to the data link 40, and the data link 40 puts the received calling information on the D channel and transmits it to the S / T bus interface circuit 50. The S / T bus interface circuit 50 multiplexes the D channel with the B1 and B2 channels and transmits them to the exchange 3 via the network terminating device 2. When the number information is transmitted as a tone signal from the telephone 4, the telephone circuit 100 receives it and transmits it to the tone receiver 80. Tone receiver 80
Reads out the number information from the received tone signal and transmits the number information to the central control unit 10 via the telephone control circuit 30. The central controller 10 sends the received number information to the data link 40, and the data link 40 puts the received number information on the D channel and sends it to the S / T bus interface circuit 50. The S / T bus interface circuit 50 multiplexes the D channel with the B1 and B2 channels and transmits them to the exchange 3 via the network terminating device 2. FIG. 2 is a flow chart showing the main part of the operation of this embodiment.

[0015]

As described above, the present invention is based on the ISD.
The setting switch provided on the N terminal adapter is set to the self-address and self-sub-address setting state, and the self-address and the self-sub-address are set by sending a tone signal from the telephone, so the number information is not sent to the exchange, and the exchange provides The self-address and self-sub-address can be set without conflict with the service.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.

FIG. 3 is a block configuration diagram showing a configuration of a conventional example.

[Explanation of symbols]

 1 Terminal Adapter 2 Network Terminator (NT) 3 Switch 4 Telephone 10 Central Control Unit 20 Storage Device 30 Telephone Control Circuit 40 Data Link 50 S / T Bus Interface Circuit 60 Switching Circuit 70 Tone Transmitter 80 Tone Receiver 90 Ringer Transmitter 100 telephone circuit 110 input circuit 120 setting switch

[Procedure amendment]

[Submission date] December 2, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

[Title of the Invention] ISDN terminal adapter

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H04Q 3/42 104 9076-5K

Claims (1)

[Claims] 1. Transmitting means for multiplexing call information and number information on the D channel with information on the B1 and B2 channels and transmitting the multiplexed information to an ISDN exchange via a network terminating device, and the number information in a storage device. In an ISDN terminal adapter having a first means for accumulating and a central control unit including a second means for passing the calling information and the number information to the transmitting means, a setting for manually setting one of two modes A switch, wherein the central control unit enables the first means and disables the second means when the setting switch is set to one mode, and sets the other mode when the setting switch is set to the other mode. An ISDN terminal adapter comprising a third means for enabling both the first means and the second means.