JP2001217956A - Communication interface unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication interface unit that eliminates the need for user setting by a setting switch so as to enhance the man-machine operability with respect to the arrival of a new incoming call during communication. SOLUTION: Upon the receipt of a new incoming notice during communication, the communication interface unit transmits incoming call connection request information to request a connection to the new incoming call. In the case of receiving information, permitting the connection to the incoming call, the communication interface unit holds the call during communication in an ISDN, replies to the new incoming call, and in the case of receiving information rejecting the connection to the incoming call, the communication interface unit interrupts the call during communication and replies to the new incoming call.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
An ISDN line connected to an SDN network is accommodated,
The present invention relates to a communication interface device provided between an N line and a telephone circuit and mediating exchange of information between the two.

[0002]

2. Description of the Related Art In response to a new incoming call received via a communication line during communication, when a call waiting service is contracted, information for requesting connection with an incoming call is transmitted. A function is realized in which, after receiving information for permitting connection with an incoming call for transmission of information, a call in communication is held in an ISDN network and a new incoming call is answered.

In the above-described case, when a call waiting service is not contracted, a function of once disconnecting a call in communication and responding to a new incoming call is realized.

[0004]

The method of responding to a new incoming call received via a communication line during communication differs depending on the contract of the call waiting service, and the operability of the response method is cumbersome. In particular, when a call waiting service contract is made, a user setting for transmitting information for requesting connection with an incoming call is required.

That is, in response to a new incoming call received via a communication line during communication, there is a user setting switch for transmitting information for requesting connection with the incoming call, and a call waiting function is contracted. Nevertheless, if the setting switch is incorrectly set, there is a problem that the call waiting service cannot be used.

[0006] The present invention has been made in view of the above,
It is an object of the present invention to provide a communication interface device which eliminates the need for user setting using a setting switch and improves man-machine operability for a new incoming call during communication.

[0007]

In order to achieve the above object, the present invention according to claim 1 provides an ISDN as a communication line.
A communication interface device that accommodates an ISDN line connected to a network, is provided between the ISDN line and a telephone circuit, and mediates exchange of information between the two, and notifies a new incoming call from the ISDN line during communication. , The connection request means for sending out the incoming call connection request information for requesting connection with the new incoming call, and the effect that the call being communicated with the transmission of the incoming call connection request information has been suspended in the ISDN network. Receiving the information of the hold confirmation information, and receiving the information for permitting the connection of the incoming call with respect to the return of the hold confirmation information.
An acceptance information sending means for sending the acceptance information in response to the permission information to hold the N network and accept the answer to the new incoming call; and an incoming call for sending the incoming call connection request information. When receiving the information disallowing the connection, disconnect the active call, send a signal to disconnect the active call to answer the new incoming call, and then answer the new incoming call. And a disconnection response signal transmitting means for transmitting a signal to perform the disconnection.

According to the present invention, when a new incoming call notification is received during communication, incoming call connection request information for requesting connection with the new incoming call is transmitted. When receiving the information for permitting the connection with the incoming call, holding the active call in the ISDN network, responding to the new incoming call, and receiving the information for disallowing the connection with the incoming call. Disconnects the current call and answers the new incoming call, eliminating the need for a user setting switch. In addition to eliminating the inability to use the service, and irrespective of whether or not a call waiting service contract has been made, information for requesting connection with an incoming call is always transmitted, and information received is received. Means responsive to the new incoming call is ensured by a unified man-machine is achieved, thereby improving the operability.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a communication interface device according to one embodiment of the present invention. The communication interface device shown in FIG.
N is a device that accommodates an ISDN line connected to the N network, is provided between the ISDN line and the telephone circuit, and mediates exchange of information between the two, and is connected to the ISDN network.
An ISDN network interface unit 11 for transmitting / receiving an electrical interface and call control information to / from the ISDN network;
A control unit that refers to the call control information received from the ISDN network interface unit 11, transmits and receives call control information to and from the ISDN network interface unit 11 according to the received signal, and controls the entire communication interface device. 1
2. It has a telephone function unit 13 for controlling call processing for outgoing and incoming voice calls, and these are connected to each other via a CPU bus and a communication path bus.

Next, the processing of the communication interface device having the above-described configuration at the time of an incoming call during communication will be described with reference to signal sequence diagrams shown in FIGS.

First, as shown in FIG. 2, when the communication interface device is communicating with a certain communication terminal via the ISDN network interface 11, <Processing 1>, another calling terminal dials, and the communication interface device <Process 2-0>, the control unit 12 of the communication interface device makes the ISDN network interface unit 11
When a new incoming call notification (call setting) is received from the ISDN network via the <process 2-1>, the control unit 12
3 is notified that there is a new incoming call, and the telephone function unit 13 notifies the incoming call by visual display or audible sound.

The telephone function unit 13 responds to the new incoming call through the ISDN network interface 11
Incoming call connection request information for requesting connection with the incoming call is transmitted to the SDN network <Processing 2-2>. This process 2-2
Constitutes connection request means of the present invention. In response to the transmission of the information requesting the connection with the incoming call, the telephone function unit 13 receives the information holding the active call in the ISDN network <Processing 2-3>, and converts the active call into the ISDN network. Return the hold confirmation information confirming the hold in <Processing 2-4>
>. This process 2-4 constitutes the hold confirmation returning means of the present invention.

When the telephone function unit 13 receives the information for permitting the connection with the incoming call in response to the return of the hold confirmation information <
Process 2-5>, suspending the active call in the ISDN network, and sending acceptance information in response to the incoming call connection permission information in order to accept responding to the new incoming call. Is held in the ISDN network <Process 3>, and a new incoming call can be answered <Process 4>. This processing 2-5, 3,
4 constitutes the acceptance information sending means of the present invention.

Next, with reference to the signal sequence diagram shown in FIG. 3, the processing in the case where the incoming call connection is not permitted will be described. The processing shown in FIG. 3 is the same as that of FIG. 2 up to processing 2-2, and the transmission of the incoming call connection request information <processing 2-2.
In response to <>, if the telephone function unit 13 receives the information for disallowing connection with the incoming call, <Process 2-6>, the telephone function unit 13 sends a signal to disconnect the call in communication <Process 2->7> Then, a signal for responding to the new incoming call is transmitted <Processing 2-8>,
As a result, the call in communication is disconnected, the new incoming call is answered, and the state of communication with the new incoming call is established <Process 5>.
These processes 2-6, 2-7, and 2-8 constitute a disconnection response signal sending unit of the present invention.

As described above, with respect to a response to a new incoming call received via the communication line during communication in the telephone function unit 13, an incoming call connection requesting a connection with the incoming call depending on whether or not a call waiting service contract exists. It is not necessary for the user to set whether or not to transmit the request information, and the telephone function unit 13 always transmits information requesting connection with the incoming call, and responds to the new incoming call based on the result of the received information. Can be secured.

[0016]

As described above, according to the present invention,
When a new incoming call notification is received during communication, incoming call connection request information for requesting connection with the incoming call is sent out. In response to this, information for permitting connection with the incoming call is received. If the call is put on hold, the new incoming call is answered, and information that disallows connection with the incoming call is received, the active call is disconnected and the new incoming call is answered. Setting switch becomes unnecessary, and complicated setting operation is eliminated, and it is not possible to use the call waiting service due to an incorrect setting of the setting switch despite contracting the call waiting service as in the past. Means for always transmitting information requesting connection with an incoming call regardless of whether or not a call waiting service contract is made, and responding to a new incoming call based on a result of the received information. Is ensured, unified man-machine is achieved, thereby improving the operability.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a communication interface device according to an embodiment of the present invention.

FIG. 2 is a sequence diagram showing an operation of the communication interface device shown in FIG. 1 when an incoming call connection is permitted.

FIG. 3 is a sequence diagram showing an operation of the communication interface device shown in FIG. 1 when an incoming call connection is not permitted.

[Explanation of symbols]

 11 ISDN network interface unit 12 control unit 13 telephone function unit

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshitaka Koga 3-15 Babacho, Chuo-ku, Osaka-shi, Osaka Nishi Nippon Telegraph and Telephone Corporation (72) Inventor Toru Kawaguchi 3 Babacho, Chuo-ku, Osaka-shi, Osaka No. 15 Nishi Nippon Telegraph and Telephone Corporation (72) Inventor Soichiro Kuroki 3-15 Babacho, Chuo-ku, Osaka City, Osaka Prefecture Nishi Nippon Telegraph and Telephone Corporation (72) Inventor Tatsunori Takahashi Shinjuku-ku, Tokyo 3-19-2 Nishi-Shinjuku Tohoku Nippon Telegraph and Telephone Corporation F-term (reference) 5K027 AA10 BB02 CC02 HH05 HH18 5K101 LL03 MM06 RR11 RR28 TT01

Claims (1)

[Claims] 1. A communication interface device that accommodates an ISDN line connected to an ISDN network as a communication line, is provided between the ISDN line and a telephone circuit, and mediates exchange of information between the two. Connection request means for transmitting incoming call connection request information requesting connection with the new incoming call when a new incoming call notification is received from the ISDN line during communication; Call I
A hold confirmation returning means for returning the hold confirmation information when receiving the information indicating that the call is suspended in the SDN network, and performing communication when receiving information for permitting connection with an incoming call in response to the return of the hold confirmation information. Information sending means for sending an acceptance information in response to the permission information so as to accept the answer of the incoming call connection request information in order to hold the ISDN network and answer the new incoming call; When receiving information that disallows connection with a call, the current call is disconnected, a signal for disconnecting the current call is sent to answer a new incoming call, and then a new incoming call is received. A communication interface device comprising: a disconnection response signal transmitting unit that transmits a signal that responds to a call.