JP3154153B2 - Call transfer terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a telephone, a facsimile,
The present invention relates to a call transfer terminal suitable for (facsimile) and the like.

[0002]

2. Description of the Related Art In a conventional telephone, for example, 3.4
It is connected to an analog line (analog line network) having a frequency band of kHz, and uses in-channel communication information (for example, "hello") and control information (for example, a telephone number of the other party for performing call setting, etc.) ( Hereinafter, call control information) will be transmitted. That is, as shown in FIG. 2, the call information and the call control information are transmitted without being distinguished physically or logically.

With the advent of, for example, videotex systems and voice mail systems due to advances in information processing technology, these systems have been used as digital communication (line) networks for integrating communication systems such as telephones and facsimile machines. For example, ISDN networks are becoming widespread. The ISDN network transmits call information and call control information in an out-channel manner. That is, in the ISDN network, as shown in FIG. 3, an information channel for transmitting call information (hereinafter, referred to as B channel) and a signal channel for transmitting call control information (hereinafter, referred to as D channel). Are logically separated.

Further, in the ISDN network, one line is composed of two B channels having a transmission rate of, for example, 64 kb / s and one D channel having a transmission rate of, for example, 16 kb / s. Since the capacity of the D channel is sufficiently large, in addition to the minimum necessary control information such as the other party's telephone number in the analog network,
For example, the subscriber (telephone) number (caller number) of the caller,
Arbitrary information of a predetermined length (hereinafter, referred to as user-user information) can be transmitted as call control information.

[0005] The call control information is transmitted before the called party (the called party) answers.

In a telephone which can be connected to such an ISDN network, a telephone number of a caller stored in a built-in memory in advance and a caller transmitted on a D channel before the called party answers. It has a function of responding only when the number matches, and can prevent a call from a solicitor, a prank call, a wrong call, and the like.

[0007]

However, since the caller number does not always correspond one-to-one with the individual caller, it is not possible to prove that the caller is himself at the time of calling. Therefore, there is a problem that the called party knows the calling party number (subscriber number) of the calling party, but cannot determine who the phone is from.

Therefore, personal authentication information such as a name and an ID number, which certifies an individual of a caller, is registered in advance in a telephone of a caller and a telephone of a callee, and from the telephone of the caller, A method of transmitting this personal authentication information as user-to-user information and responding only when the personal authentication information matches the personal authentication information registered in advance in the telephone of the called party, or a calling party number and a called party of the calling party Telephone number (caller number) registered in advance on the local telephone
A method is conceivable in which a response is made only when both the personal authentication information and the personal authentication information registered in the telephone of the called party match in advance.

However, when a caller tries to make a call to a telephone connected to an ISDN network by using a telephone connected to an analog network, for example, while away from home, the telephone connected to the analog network must be ISDN D
Since the caller ID and personal authentication information cannot be transmitted to the channel, this method has a problem that a telephone connected to an analog network cannot call a telephone connected to an ISDN network. Was.

[0010] The present invention has been made in view of such a situation, and is intended to enable free communication from an analog network to an ISDN network.

[0011]

According to the present invention, there is provided a call transfer terminal comprising: a PB (push button) signal receiving section as a receiving means for receiving control information arriving after an incoming call response;
The transfer terminal that determines transfer from the control information received by the B signal receiving unit 23 and the transfer instruction information determination unit 24 or the transfer destination telephone number extraction unit 25 as a detection unit that detects the transfer destination telephone number, and the authentication terminal Used for personal authentication
A personal authentication information storage unit 12 as storage means for storing personal authentication information for identifying an individual; and a transfer destination telephone number extracting unit 25 corresponding to the transfer information detected by the transfer instruction information determining unit 24. User-to-user information transmission unit 13, PB signal transmitter 15 and transmission signal coupling unit 16 as transmission means for transmitting the telephone number of the transfer destination detected by the above and the personal authentication information stored in personal authentication information storage unit 12. And characterized in that:

[0012]

In the incoming call transfer terminal having the above structure, the control information arriving after the incoming call response is received, and the transfer information indicating the transfer and the telephone number of the transfer destination are detected from the received control information. Then, corresponding to the detected transfer information, the telephone number of the transfer destination and the personal authentication information stored in advance in the personal authentication information storage unit 12 are used by the authentication terminal to perform personal authentication.
Since personal authentication information to identify the individual will be sent,
It can be transferred to any destination.

[0013]

FIG. 1 is a block diagram showing the configuration of an embodiment of a telephone to which a call transfer terminal of the present invention is applied. This telephone comprises a network interface unit 2, an incoming call response unit 3, a switch unit 4, headsets 5, 6, a signal transmission unit 10, information transmission / reception units 20 and 30, and the network interface unit 2, the ISDN network 1, Is connected. The ISDN network (ISDN network) 1 is composed of a digital line and an exchange (both not shown) and the like. As described above, an out-channel system, that is, one logically separated D channel or two B channels ( The B1 channel and the B2 channel) transmit call control information or call information, respectively.

The network interface unit 2 supplies signals (information) of the logically separated B1, B2, or D channels of the ISDN network 1 to the information transmitting / receiving units 20, 30 or the incoming call response unit 3, respectively.
The network interface unit 2 includes an information transmitting / receiving unit 20,
30 or a signal (information) output from the signal transmission unit 10
To the logically separated B1, B2, or D channels of the ISDN network 1, respectively.

[0015] The incoming call response section 3 is an ISDN network 1
Responds to the call from the D channel of
0 is supplied with a control signal indicating that a call has been received.

The information transmitting / receiving unit 20 includes a speech encoding unit 21,
It comprises a voice decoding unit 22, a PB (push button) signal receiving unit 23, a transfer instruction information determining unit 24, a transfer destination telephone number extraction unit 25, and a transfer destination telephone number accumulation unit 26. The voice coding unit 21 is supplied to the transmitter 5a via the switch 4a or the switches 4d and 4a
The audio signal supplied from the audio decoding unit 32 is encoded through the network interface 2 and supplied to the B1 channel of the ISDN network 1 via the network interface 2. Voice decoding unit 22
Decodes a digital signal as speech information supplied from the B1 channel of the ISDN network 1 through the network interface 2 into a voice signal and supplies it to the receiver 5b via the switch 4b, or via the switches 4b and 4c And supplies it to the speech encoding unit 31.

The PB signal receiving unit 23 receives a telephone push button signal (hereinafter, referred to as a PB signal) received from the analog network 42 and supplied from the B1 channel of the ISDN network 1, and transmits transfer instruction information. It outputs to the judgment part 24 and the transfer destination telephone number extraction part 25. The transfer instruction information determining unit 24 extracts transfer information for instructing whether or not to transfer the telephone from the PB signal output from the PB signal receiving unit 23, and determines whether or not to transfer the incoming call ( to decide. The transfer destination telephone number extracting unit 25
The transfer destination telephone number is extracted from the PB signal supplied from the B signal reception unit 23, and the transfer destination telephone number storage unit 26 is extracted.
To supply. The transfer destination telephone number storage unit 26 stores the telephone number of the transfer destination of the telephone supplied from the transfer destination telephone number extraction unit 25. Further, when the transfer instruction information determining unit 24 determines that the transfer information is information for transferring an incoming call, the transfer destination telephone number storage unit 26 transmits a signal of the stored transfer destination telephone number. The signal is supplied to the PB signal transmitter 15 of the unit 10.

The signal transmitting unit 10 is a personal authentication information input unit 1
1. Personal authentication information storage unit 12, user-user information transmission unit 13, telephone number input unit 14, PB signal transmitter 15,
And a transmission signal combiner 16. The personal authentication information input section 11 is for inputting personal authentication information such as a name and an ID number for certifying an individual sender. The personal authentication information storage unit 12 includes the personal authentication information input unit 1
The personal authentication information output from 1 is stored. The user-to-user information sending unit 13 reads out the personal authentication information stored in the personal authentication information storage unit 12 and sends the personal authentication information to the sending signal combining unit 16 as user-to-user information.

The telephone number input section 14 comprises a push button (not shown) for dialing a telephone number. The PB signal transmitter 15 is connected to the telephone number input unit 14
Then, a PB signal corresponding to the telephone number dialed in or the telephone number supplied from the transfer destination telephone number storage unit 26 is generated (transmitted) and supplied to the transmission signal combining unit 16. The transmission signal combining unit 16 combines the PB signal as the telephone number supplied from the PB signal transmitter 15 and the user-user information as the personal authentication information transmitted from the user-user information transmitting unit 13. , Via the network interface unit 2 to the D channel of the ISDN network 1.

The information transmission / reception unit 30 comprises a speech encoding unit 31 and a speech decoding unit 32. Audio encoding unit 3
1 encodes an audio signal supplied from the transmitter 6a via the switch 4c or supplied from the audio decoding unit 22 via the switches 4b and 4c, and outputs the ISDN network 1 via the network interface 2. To the B2 channel. The voice decoding unit 32 decodes a digital signal as call information supplied from the B2 channel of the ISDN network 1 via the network interface 2 into a voice signal and supplies the voice signal to the receiver 6b via the switch 4d, or The signal is supplied to the audio encoding unit 21 via 4d and 4a.

The switch section 4 is composed of switches 4a to 4d. When the switches 4a and 4b are located on the lower side in the figure, the switches 4c and 4d are located on the upper side in the figure, and the switches 4a and 4b are When the switch is located at the upper middle position, the switches 4c and 4d operate so as to be located at the lower position in the figure. The switch 4a is connected to the audio signal supplied from the transmitter 5a of the headset 5, or the switch 4d
, And selects one of the audio signals supplied from the audio decoding unit 32 to output to the audio encoding unit 21. The switch 4b outputs the audio signal supplied from the audio decoding unit 22 to the receiver 5b or to the audio encoding unit 31 via the switch 4c.

The switch 4c selects one of the audio signal supplied from the transmitter 6a of the headset 6 and the audio signal supplied from the audio decoding unit 22 via the switch 4b, and Output to the encoding unit 31. The switch 4d outputs the audio signal supplied from the audio decoding unit 32 to the receiver 6b or to the audio encoding unit 21 via the switch 4a.

The headset 5 includes a transmitter 5a and a receiver 5b. The transmitter 5a converts the voice into a voice signal, which is an electric signal, and supplies the voice signal to the voice encoder 21 via the switch 4a. The receiver 5b includes the voice decoding unit 2
The audio signal supplied from switch 2 via switch 4b is converted into audio and output. The headset 6 includes a transmitter 6a and a receiver 6b. The transmitter 6a converts the voice into a voice signal, which is an electric signal, and supplies the voice signal to the voice encoder 31 via the switch 4c. The receiver 6b converts the audio signal supplied from the audio decoding unit 32 via the switch 4d into audio and outputs the audio.

The telephone 40 transmits the caller's telephone number or personal authentication information transmitted by the D channel of the ISDN network 1 at the time of calling, and the telephone number or personal authentication information stored in a memory (not shown) incorporated therein. Is a telephone that responds to an incoming call only when The telephone 41 is a telephone connected to the analog network 42.

The analog network 42 transmits call control information and call information in an in-channel manner as described above (FIG. 2).

Next, the operation will be described. From the telephone connected to the ISDN network 1 shown in FIG.
Similarly, when a call is made to another telephone 40 connected to the ISDN network 1, the telephone number input unit 14 is operated, and the telephone number of the telephone 40 (the telephone number given to the line to which the telephone 40 is connected) is entered. Is entered. PB
In the signal transmitter 15, the PB corresponding to the telephone number
A signal is generated (transmitted) and supplied to the transmission signal combiner 16.

Here, the telephone connected to the ISDN network 1 shown in FIG. 1 is a telephone other than the telephone 40 shown in FIG. 1 (a telephone to which the call transfer terminal of the present invention is applied).

On the other hand, in the user-user information transmitting section 13, the personal authentication information stored in the personal authentication information storage section 12 is read out, and this personal authentication information is used as user-user information as the transmission signal coupling section 16 Sent to The transmission signal combining unit 16 combines the PB signal as the telephone number supplied from the PB signal transmitter 15 with the user-user information as the personal authentication information transmitted from the user-user information transmitting unit 13. , Via the network interface unit 2 to the D channel of the ISDN network 1.

The signal transmitted from the transmission signal coupling section 16 to the D channel of the ISDN network 1
0 is called, and the telephone 40 is provided with the user-user information as personal authentication information and the caller number added to the call control information in the ISDN network 1 (given to the line connected to the telephone in FIG. 1). Phone number) is sent. Then, at the telephone 40, the user-user information and the caller number as personal authentication information are received at the time of calling. Further, if it is determined in telephone 40 that the telephone number (caller number) or personal authentication information of the caller registered in advance matches the received personal authentication information or caller number, respectively, Is responded to the incoming call (call).

Next, the owner of the telephone set shown in FIG.
1 to telephone 4 connected to ISDN network 1
When the telephone number 0 is called, the personal authentication information cannot be transmitted from the telephone set 41 to the telephone set 40 via the analog network 42 and the ISDN network 1 as described above. Do not respond.

Therefore, first, the telephone 41 connected to the analog line network 42 receives the ISDN network 1 shown in FIG.
Make a call to the telephone connected to. Then, the incoming response unit 3 responds to the call from the D channel of the ISDN network 1 and supplies a control signal for notifying the information transmitting / receiving unit 20 that the call has been received. When the control signal is supplied from the incoming response unit 3 to the information transmitting / receiving unit 20, the PB signal receiving unit 23 of the information transmitting / receiving unit 20
A PB signal received from the analog network 42 supplied from the B1 channel of the ISDN network 1 is received, and the received PB signal is transmitted to the transfer instruction information determination unit 24.
And output to the transfer destination telephone number extraction unit 25. The transfer instruction information determining unit 24 extracts transfer information indicating whether or not to transfer a telephone call from the PB signal supplied from the PB signal receiving unit 23, and determines whether or not to transfer an incoming call ( Judgment) is done.

When the transfer instruction information determining section 24 determines that the transfer information is not information for transferring an incoming call (for example, in the PB signal receiving section 23,
When the PB signal “0 #” is received), the switches 4a and 4b are switched to the upper side in the figure, and the switches 4c and 4d are switched to the lower side in the figure. That is, the transmitter 5a and the audio encoder 21, the receiver 5b and the audio decoder 22, the transmitter 6a and the audio encoder 31, or the receiver 6b and the audio decoder 32 are connected. Therefore, the B1 channel or the B2 channel of the ISDN network 1 corresponds to the audio encoding unit 21, the audio decoding unit 22, the switches 4a and 4
b, or connected to the headset 6 via the voice encoding unit 31, the voice decoding unit 32, and the switches 4c and 4d, and a normal call is made.

When the transfer instruction information determining section 24 determines that the transfer information is information for transferring an incoming call (for example, in the PB signal receiving section 23,
When the PB signal "1 #" is received), the transfer destination telephone number extraction unit 25 extracts the telephone number of the transfer destination of the telephone from the PB signal supplied from the PB signal reception unit 23,
It is supplied to the transfer destination telephone number storage unit 26. In the transfer destination telephone number storage unit 26, the transfer destination telephone number supplied from the transfer destination telephone number extraction unit 25 is temporarily stored, and the stored telephone number is stored in the PB signal transmitter 1 of the signal transmission unit 10.
5 is supplied. In the PB signal transmitter 15, a PB signal corresponding to the transfer destination telephone number supplied from the transfer destination telephone number storage unit 26 is generated (transmitted) and supplied to the transmission signal combining unit 16.

Here, the telephone number of the transfer destination is temporarily stored in the transfer destination telephone number storage section 26 because:
This is for redialing when the call cannot be transferred because the transfer destination is busy.

On the other hand, in the user-user information transmitting section 13, the personal authentication information stored in the personal authentication information storage section 12 is read out, and this personal authentication information is transmitted as the user-user information to the transmission signal coupling section 16 Sent to In the transmission signal coupling unit 16, the PB signal as the transfer destination telephone number supplied from the PB signal transmitter 15 and the user-user information as the personal authentication information transmitted from the user-user information transmission unit 13 Are connected to each other via the network interface unit 2,
Sent to the channel.

A signal transmitted from the transmission signal coupling section 16 to the D channel of the ISDN network 1 calls the transfer destination telephone 40, and the telephone 40
User-user information as personal authentication information;
The caller number (the telephone number given to the line connected to the telephone in FIG. 1) added to the call control information is transmitted in the SDN network 1. Then, at the transfer destination telephone 40, the user-user information and the caller number as personal authentication information are received at the time of calling. Further, it is determined that the telephone number (caller number) or personal authentication information of the caller registered in advance and the received personal authentication information or caller number match on the transfer destination telephone set 40, respectively. Then, a response to the incoming call (call) is made.

When a response is received from the telephone 40 of the transfer destination, the switches 4a and 4b are switched to the lower side in the figure, and the switches 4c and 4d are simultaneously switched to the upper side in the figure. That is, the audio encoding unit 21 and the audio decoding unit 32 or the audio encoding unit 31 and the audio decoding unit 22 are connected. In the audio decoding unit 22, the network interface 2
Telephone 41 connected to the analog network 42, supplied from the B1 channel of the ISDN network 1 via the
A digital signal as speech information from the telephone is decoded into a voice signal, and the voice signal is encoded via the switches 4b and 4c.
Supplied to In the voice encoding unit 31, the switch 4
b, 4c, the audio signal supplied from the audio decoding unit 22 is encoded,
It is supplied to the B2 channel of the DN network 1. That is, a call (sending) from the telephone set 41 connected to the analog network 42 is transferred to the transfer destination telephone set 40.

In the voice decoding unit 32, the B of the ISDN network 1 is transmitted via the network interface unit 2.
A digital signal as call information from the transfer destination telephone set 40 supplied from two channels is decoded into a voice signal and supplied to the voice encoding unit 21 via the switches 4d and 4a. In the audio encoding unit 21, the switches 4d,
The audio signal supplied from the audio decoding unit 32 through the network interface 2a is encoded, and the
The data is supplied to the B1 channel of the network 1. That is, a call (sending) from the transfer destination telephone 40 is transferred to the telephone 41 connected to the analog line network 42.

As described above, the transfer destination is arbitrarily set from the telephone set 41 connected to the analog network 42, and when calling the transfer destination, personal authentication information for certifying (identifying) the caller is transmitted. With this configuration, it is possible to freely call a called party who responds to an incoming call based on personal authentication information for certifying (identifying) the caller from outside.

The case where the call transfer terminal of the present invention is applied to a telephone has been described above. However, the present invention is applied not only to a telephone but also to an apparatus which can be connected to a communication line such as a facsimile (FAX) or a modem. can do.

In this embodiment, the headset 5 or 6 is prepared as a headset for the B1 channel or the B2 channel of the ISDN network 1, respectively. However, only one of the headsets 5 and 6 may be used. it can.

[0042]

As described above, according to the incoming call transfer terminal of the present invention, control information arriving after an incoming call response is received, transfer information for instructing transfer and telephone number of transfer destination are received from the received control information. (The number given to the line) is detected. Then, the authentication terminal stored in advance in the telephone number of the transfer destination and the storage means in accordance with the detected transfer information is
Since personal authentication information used to perform personal authentication and for identifying an individual is transmitted, it is possible to freely access, for example, a telephone or a facsimile which responds based on the personal authentication information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a telephone to which a call transfer terminal of the present invention is applied.

FIG. 2 is a diagram for explaining a transmission method (in-channel method) in an analog circuit network.

FIG. 3 is a diagram for explaining a transmission method (out-channel method) in an ISDN network.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ISDN network 2 Network interface part 3 Incoming response part 4 Switch part 4a-4d switch 5 Headset 5a Transmitter 5b Receiver 6 Headset 6a Transmitter 6b Receiver 10 Signal transmission part 11 Personal authentication information input part 12 Personal authentication information Storage unit 13 user-user information transmission unit 14 telephone number input unit 15 PB (push button) signal transmitter 16 transmission signal coupling unit 20 information transmission / reception unit 21 voice coding unit 22 voice decoding unit 23 PB signal reception unit 24 transfer Instruction information judgment unit 25 Transfer destination telephone number extraction unit 26 Transfer destination telephone number storage unit 30 Information transmission / reception unit 31 Voice encoding unit 32 Voice decoding unit 40, 41 Telephone 42 Analog circuit network

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04M 1/00 H04M 1/24-1/258 H04M 1/58-1/62 H04M 1/66-1 / 82

Claims (1)

(57) [Claims] 1. Authentication for performing personal authentication for an incoming call from outside
An incoming call transfer terminal capable of transferring to a terminal, receiving means for receiving control information arriving after an incoming call response, detecting transfer information instructing transfer and a transfer destination telephone number from the control information received by the receiving means. Detecting means for performing personal authentication by the authentication terminal, storing means for storing personal authentication information for identifying an individual , and detecting means corresponding to the transfer information detected by the detecting means. A transmission unit for transmitting the telephone number of the transfer destination detected by the method and the personal authentication information stored in the storage unit.