JP3055574B2 - ISDN terminal adapter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ISDN terminal adapter, and more particularly to an IS that outputs caller information by voice.
It relates to a DN terminal adapter.

[0002]

2. Description of the Related Art ISDN is an integrated service digital network (Integrated Service Digital).
al Network). In this ISDN, information of various media such as telephone, facsimile, data, and videotex are all transmitted and exchanged in a digital format. Communication services for these various media are provided by a unified user / network interface under one subscription contract with the same number. Further, additional services such as billing information and caller ID notification are also provided.

[0003] As a switching system, either a circuit switching system or a packet switching system can be selected.

As an interface, there are a basic interface composed of two B channels and one D channel (expressed as 2B + D), and a primary group speed interface capable of simultaneously using a maximum of 23 B channels (expressed as 23B + D). Has been internationally standardized.

[0005] The B channel is an information channel of 64 [kb].
[ps], which allows the user to freely transmit information and can be used for both circuit switching and packet switching.

[0006] D channel (in the basic interface,
16 [kbps], 6 for primary rate interface
4 [kbps] is called a signaling channel and is used to carry billing information, caller information, signals for controlling the exchange of information channels, and user packet data.

FIG. 2 shows a conventional ISDN terminal adapter.
Shown in In the conventional example shown in FIG. 2, a first telephone subscriber circuit 2 connected to the B1 channel, a second telephone subscriber circuit 3 connected to the B2 channel, and these telephone subscriber circuits 2, 3, an S / T interface 7 for interfacing with the S / T bus of the ISDN network, a call signal generating means 9 for transmitting a call signal to a corresponding telephone subscriber circuit upon reception, and a tone for the corresponding telephone subscriber circuit. Tone generating means 5 for transmitting a signal.
Further, the B transmitted from the analog terminal of the telephone subscriber circuit is
PB signal receiving means 4 for receiving a PB signal on a channel
A data link means 6 for performing protocol processing of D channel information sent from the network side through the S / T interface 7 and D channel information sent from an analog terminal of the telephone subscriber circuit; A display means 10 for displaying a message and a call signal generating means 9, a tone generating means 5, a display means 10 and a data link means 6 are controlled based on information from a telephone subscriber circuit, a PB signal receiving means 4 and a data link means 6. And control means 8 which performs the control.

The D channel information sent from the network at the end of the call is input to the data link means 6 via the S / T interface circuit 7. Data link means 6
Then, the D channel information is subjected to protocol processing, and the calling number is output to the control means 8. The control means 8 displays, for example, "caller--" on the display means based on the sent caller number and the caller information stored corresponding to the caller number.
−Yamamoto Yamada Shoji ”.

[0009]

However, in the above conventional example, since the caller information is output only to the display means, the caller information must be transmitted to a user located away from the ISDN terminal adapter. There was an inconvenience that it was not possible.

Further, with an ISDN terminal adapter having no display means, a user cannot know caller information at all.

[0011]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ISDN terminal adapter which can solve the above-mentioned disadvantages of the prior art and is particularly suitable for informing a user of caller information by voice.

[0012]

Therefore, according to the present invention, an S / T interface for interfacing a telephone subscriber circuit with an S / T bus of an ISDN network and a network sent through the S / T interface are provided. Data link means for performing protocol processing of D channel information, and data
The caller is identified based on the caller number from the link means.
Voice-synthesizing means for voice-outputting all caller information
And an analog terminal connected to the S / T interface
Caller information generated when end is off hooked
When the output trigger signal is received, the voice synthesizing means is controlled.
And control means for controlling the output of the caller information by voice.
Was, adopts a configuration that. This aims to achieve the above-mentioned object.

[0013]

When the D-channel information sent from the network side at the time of an incoming call is input to the data link means via the S / T interface, the data link means performs D-channel information protocol processing and performs caller ID. Is generated and output to the control means. The control means generates caller information such as the name and affiliation of the caller based on the transmitted caller number. The control means controls the voice synthesizing means in accordance with the generated caller information by a caller information output trigger signal generated by off-hooking of the user.
This is a phone call from Mr. Suzuki of Shoji. "

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. The embodiment of FIG. 1 shows a first telephone subscriber circuit 2 connected to the B1 channel, a second telephone subscriber circuit 3 connected to the B2 channel, and these telephone subscriber circuits 2, 3; An S / T interface 7 for interfacing with the S / T bus of the ISDN network is provided. Further, a call signal generating means 9 for transmitting a call signal to a corresponding telephone subscriber circuit upon reception, and a tone generating means 5 for transmitting a tone signal to the corresponding telephone subscriber circuit.
PB signal receiving means 4 for receiving a PB signal on the B channel transmitted from the analog terminal of the telephone subscriber circuit;
A data link means 6 for performing protocol processing of the D channel information sent from the network side through the S / T interface 7 and the D channel information sent from the analog terminal of the telephone subscriber circuit, and a message such as caller information. Voice synthesizing means 1 for outputting voice, and calling signal generating means 9, tone generating means 5, voice synthesizing means 1 and data link means 6 based on information from a telephone subscriber's circuit, PB signal receiving means 4 and data link means 6. And control means 8 for controlling the

In this embodiment, two telephone subscriber circuits and one
, But is not limited to these numbers.

The first telephone subscriber circuit 2 and the second telephone subscriber circuit 2
The telephone subscriber circuit 3 accommodates analog terminals connected to port 1 and port 2, respectively.

Here, a layer model in ISDN will be briefly described. OSI (OpenSystems I
In the connection, a model (O) in which functions for communication between two systems are divided into seven layers
An SI reference model) is created, and an independent protocol is designed and systematized for each layer. These are Layer 1
, A data link layer as layer 2, a network layer as layer 3, a transport layer as layer 4, a session layer as layer 5, a presentation layer as layer 6, and an application layer as layer 7. In general, layers 1 to 4 are also called lower layers and define transmission functions, and layers 5 to 7 are also called upper layers and define communication processing functions.

Next, the function of each layer will be briefly described. First, the physical layer defines the electrical and physical control means of the line. Next, in the data link layer, two adjacent
It specifies data transfer between two systems and control means for transmission errors. In the network layer, data transfer means between systems in which a user exists by relaying via one or a plurality of communication networks is defined. Subsequently, the transport layer defines transparent two-way simultaneous transfer means for end-to-end data without being involved in the route selection or relay function. The session layer defines means for composing conversations, synchronizing and managing data exchange.
The presentation layer performs input, transfer, display, and control of structured data, and defines functions related to an information expression format common to application protocols. The application layer defines application protocols for management and for users.

Next, the operation of this embodiment at the layer 2 level will be described.

(1) When an incoming call is received from the ISDN network side: D sent via the S / T interface 7
The channel information is sent to the data link means 6. In the data link means 6, the protocol processing of the layer 2 is performed,
The result is sent to the control means 8. When the control means 8 receives the incoming call information, it activates the call signal generating means 9. When activated, the call signal generating means 9 generates a call signal, and sends the call signal to the first telephone subscriber circuit 2 or the second telephone subscriber circuit 3 according to an instruction of the control means 8.

(2) When calling from an analog terminal connected to port 1 or port 2: The control means 8 activates the tone generating means 5. When activated, the tone generating means 5 sends out a tone to the first telephone subscriber circuit 2 or the second telephone subscriber circuit 3 according to an instruction from the control means 8. The PB signal receiving means 4 receives the PB signal sent from the analog terminal and sends the result to the data link means 6. The data link unit 6 performs the protocol processing of the layer 2 and sends out the D channel information to the S / T interface 7.

As described above, port 1 or port 2
Is set between the analog terminal connected to the ISDN network and the ISDN network.

Next, a method of outputting caller information will be described. The D channel information sent from the network side at the time of an incoming call is input to the data link means 6 via the S / T interface 7. In the data link means 6, the D channel information is subjected to protocol processing, a caller number is generated and output to the control means 8. The control means 8 generates caller information such as the name and affiliation of the caller based on the transmitted caller number. A caller information output trigger signal is generated by the user off-hooking the analog terminal at the time of an incoming call, and is output to the control means 8. When the control means 8 receives the caller information output trigger signal, the control means 8 controls the voice synthesizing means 9 according to the generated caller information, for example, "This is a call from Mr. Suzuki of ABC Corporation."
And output synthesized speech such as

The means for generating a caller information output trigger signal is not limited to the one shown in this embodiment.

In this embodiment, the caller information is
Although the audio output of only the name and the affiliation is described, the audio output content is not limited to these.

[0026]

As described above, according to the present invention, since the voice synthesizing means controlled by the control means is provided, the caller information based on the caller number as the D channel information is obtained. Can be output by voice.
This is because, even be able to tell immediately the message of the calling party information to the user's location away from the ISDN terminal adapter, also, the off-hooking of analog lines
Since the caller information is output as a trigger as a trigger, even if the caller is not known, an agent who knows the requirements can respond immediately when the caller is known, and unpleasantness such as circulating calls and repeating requirements I ca n’t give her
If you know in advance the requirements of the person who can respond to the urgency of the other party, such as answering a call after putting a work break when you receive a call while working away from the phone Can provide an excellent ISDN terminal adapter, which can be handled after preparing necessary materials in advance, and does not allow the other party to wait.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Speech synthesis means 2 First telephone subscriber circuit 3 Second telephone subscriber circuit 6 Data link means 7 S / T interface 8 Control means

Claims (1)

(57) [Claims] An S / T interface for interfacing a telephone subscriber circuit with an S / T bus of an ISDN network, and a data link for performing protocol processing of D channel information transmitted from the network side through the S / T interface. Means and caller ID from data link means
An audio output to output caller information about the caller
And an analog terminal connected to the S / T interface.
Caller information output generated when off hooked
Controlling the voice synthesizing means when a trigger signal is received;
Control means for outputting the caller information by voice
And an ISDN terminal adapter.