JP2757656B2 - Second dial receiving method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone line connected to a public network subscriber line, and a dial number to a called terminal in response to an incoming call.
The present invention relates to a second dial receiving method in a switching system for receiving an audible signal from the subscriber line as a dial.

[0002]

2. Description of the Related Art Conventionally, in this type of second dial receiving system, a push button (P
B) The signal of the combination of the two audible frequencies by the dial was used corresponding to the number digits.

Generally, switching systems requiring a second dial are mobile communication systems, multi-function paging systems,
In the company / home switching system, the caller is first
, A communication path in the public network is formed up to a subscriber line accommodating a desired switching system.

[0004] The switching system that receives a call by receiving a call transmits a second dial tone requesting the dial number of the called terminal to the caller via the communication path.

[0005] The caller makes a second dial call according to the second dial tone. A communication path formed from the calling telephone to the called exchange can transmit a signal at an audible frequency, but a DC intermittent pulse (D
P) The signal cannot pass.

[0006] Therefore, the calling side uses the combination of audible frequencies (PB) signal of the telephone with the push-button dial for the second dial transmission.

That is, the switching system that receives the second dial number is a system that receives the second dial number as a PB signal.

Normally, in this type of switching system, a switching line accommodates a subscriber line, and the switching unit executes an incoming call procedure for calling a called terminal in accordance with a received PB signal.

[0009]

In the above-mentioned conventional second dial receiving method, the switching system receives a called terminal number by a push button (PB) dial of a telephone from a public network via a subscriber line. The problem is that this service cannot be received from a telephone (line) that can only transmit a called number by a dial pulse (DP) signal such as a conventional rotary dial that occupies a large number. There was a point.

An object of the present invention is to provide a message notification of a second dial tone by voice guidance, to receive a voice of a called terminal number which is a second dial number, and to recognize this by voice recognition.
It is an object of the present invention to provide a second dial receiving method that solves the above problem.

[0011]

The basic structure of a second dial receiving system according to the present invention is that a dial number to a called terminal is audible as a second dial to an incoming call by connecting to a subscriber line of a public network. In a second dial receiving method in a switching system for receiving a signal from the subscriber line by a signal, the switching system requests a dial number of a called terminal after automatically responding when receiving a call signal from the subscriber line. The message to be transmitted is transmitted to the calling side via a communication path by voice guidance, and then the received voice is recognized and converted into a number code and stored sequentially to form a dial number. When the received dialing voice is recognized as a predetermined number approval, the stored dialing number is continuously transmitted to the calling side by voice. Together with calling the called terminal as the called terminal number is to have a means for delivering the second ring back tone to the calling side.

A first embodiment of the basic configuration is that the switching system has the above-mentioned means in an exchange accommodating the subscriber line in the switching system.

A second embodiment of the basic configuration is provided for each of the subscriber lines, and automatically receives a call signal when receiving a calling signal from the subscriber line, and then requests the dial number of the called terminal. The message is transmitted by voice guidance to the calling side via the communication path, and then the voice to be received is recognized and converted to a number code and stored sequentially to form a dial number. When it is recognized, the dialed number stored so far is continuously transmitted to the calling side by voice, and when the received voice is recognized as a predetermined number approval, the public network transmits to the outgoing line which becomes the called subscriber line. When the second dial tone is received together with the response signal, the stored dial number is transmitted as an audible signal generated by a push button (PB) dial of the telephone,
A dial converter for closing a communication path and connecting a subscriber line from the public network to the outgoing line, and accommodating at least one of the subscriber lines via the dial converter;
When receiving an audible signal by the B-dial, an exchange for calling the called terminal with the received dial number and transmitting a second ringing tone to the calling side is provided.

[0014]

In the second dial receiving method according to the above-mentioned means, since the switching system receives and recognizes the called terminal number by the second dial by voice, it is possible to accept a call from a DP dial type telephone.

[0015]

Next, a second dial receiving system according to the present invention will be described with reference to the drawings.

FIG. 1 is an operation procedure diagram showing an embodiment of the basic configuration of the present invention.

As shown in FIG. 1, a calling terminal 10 is connected to a public network 20 via a subscriber line 51, and the public network 20 accommodates a second dial exchange system 30 via a subscriber line 52. The switching system 30 is a system that requires a second dial for connecting the called terminal 40 via the terminal line 53.

The calling terminal 10 has a rotary dial, and a dial call to the public network 20 is a dial pulse (DP) signal for interrupting the DC supplied to the subscriber line 51.
It is an old telephone.

The calling terminal 10 transmits an off-hook signal for calling to the public network 20 (101) by forming a loop of two lines of the subscriber line 51 to form a DC circuit.

The public network 20 completes the preparation for receiving the DP signal to the subscriber line 51 that has received the off-hook signal, transmits a dial tone (102), and waits for reception of the called number by the DP signal.

Since the calling terminal 10 listens to the dial tone and dials the subscriber number of the switching system 30 by operating the rotary dial, the public network 20 receives the number by the DP dial (103) and joins the called party. If the user line 52 is vacant,
A calling signal is transmitted to the called side (111) and a ringing tone is transmitted to the calling side (104).

Since there is an incoming call and the switching system 30 which has received the call signal in step 111 automatically answers (112) this call, the public network 20 stops the ringing tone transmission to the calling side and joins by automatic answer. Subscriber line 51 and subscriber line 52
And are connected by a call path.

The communication path of the public network 20 cannot pass signals by the DP dial.

The procedure up to this point is the same as in the prior art.

The switching system 30 performs an automatic response procedure 112.
Thereafter, the time when the communication path of the public network 20 is formed is seen, and a voice guidance message requesting the second dialing is transmitted to the calling side as synthesized voice (121). For example, "This is a mobile communication system.
Please pronounce one by one like You can check the numbers and numbers one by one. ".

According to the voice guidance in step 121, the switching system 30 receives the voice (122). When the exchange system 30 recognizes the received voice as a numeral number by voice recognition means, for example, it pronounces "ichi (one). In the case of an error, it starts over or repeats, and in the case of end, it pronounces end or end. Please send the recognized voice to the calling party (123), repeat this procedure, and accumulate the received digits.

When the exchange system 30 recognizes the received voice as, for example, "end", it determines that it is a confirmation request voice (131), and uses the stored number as a recognition number.
For example, a message is sent (132), saying, "The calling number is one, two, .... If you make a mistake, please repeat or repeat, and if it is correct, sound okay."

The switching system 30 receives the "OK" number approval voice as a response to the procedure 132 (13
3) When the call is made, the calling procedure 140 for sending a calling signal to the called terminal 40 of the received and stored number via the terminal line 53 is executed, and the calling side is called, and the calling side is the second time following the step 104 on the calling side. The second ringing tone is transmitted (151), and the calling procedure of the called terminal 40 ends.

Next, a first embodiment in the case where the second dial exchange system 30 of FIG. 1 is a mobile communication system will be described with reference to FIG.

FIG. 2 is a block diagram showing one embodiment of the switching system of the present invention.

As shown in FIG. 2, the second dial switching system 30 has a mobile switching center 31 and a radio control unit 39. The mobile switching center 31 includes a central office relay unit 32, a communication path switch 33, a control unit 34, It has a voice generator 35, a voice recognizer 36, a ringer 37, and a terminal relay device 38.

The line relay device 32 accommodates a subscriber line 52 from the public network 20 (FIG. 1), and switches the communication path to the communication path switch 3.
3 while transmitting and receiving signals to and from the control unit 34. The communication path switch 33 is composed of the line relay device 32 and the terminal relay device 38.
And a voice generating unit 35, a voice recognizing unit 36 and a ringing tone generating unit 37 are connected to the line relay device 32.
Connect to

The functions of the voice generating unit 35, the voice recognizing unit 36, and the ringing tone generating unit 37 will be described together with the operation procedure.

The terminal relay device 38 has one terminal connected to the communication line switch 33 and the other terminal connected to the terminal line 5 from the wireless control device 39.
3 is an interface device connected to the mobile terminal 41 through 3 to monitor a line and exchange signals.

[0035] Next, a procedure of switching system 30 calls the mobile terminal 4 1 will now be described with reference to FIGS. 1 to FIG.

First, the switching system 30 is connected to the subscriber line 5
The central office relay device 32 identifies and receives the call signal from the terminal 2 and notifies the control unit 34 ( 111). Therefore, the control unit 34 determines and sends an automatic response (112) from the central office relay device 32 to the calling side. At the same time, the communication path switch 33 is controlled to connect the voice generating unit 35 and the voice recognizing unit 36 to the subscriber line 52 via the local line repeater 32.

After confirming the operation of the communication path switch 33, the control unit 34 sends a second dial tone, that is, a call request for the second dial number to the caller to the voice generator 35 in accordance with the above-described voice guidance. This is executed by instructing transmission (121).

When the received voice is recognized as a numeral or a predetermined signal by voice recognition (122), the voice recognition unit 36 notifies the control unit 34 of the recognition.

When receiving the numbers from the voice recognition section 36, the control section 34 arranges and stores the numbers in the receiving order to make the called terminal number, and transmits the recognized voice to the voice generation section 35 (123). To instruct.

When the control unit 34 receives the notification (131) of the confirmation request voice from the voice recognition unit 36, the control unit 34 sets all the stored numeral numbers as the recognition numbers, and instructs the voice generation unit 35 to transmit (132). I do.

As a result, the control unit 34 notifies the voice recognition unit 36 of the notification of the reception of the "OK" number approval voice (133).
From the mobile terminal 41 according to the called terminal number.
The call procedure (1) is to select the wireless channel up to the terminal line 53, set the communication path, and transmit the call signal.
At the same time, the communication line switch 33 is controlled to connect the local line repeater 32 to the ringing tone generator 37. Therefore, the ringing tone generating section 37 performs the procedure 104 for the caller.
Then, the second ringing tone is transmitted to the calling side (151).

In the present embodiment, the reception and reception of numeric numbers by voice is illustrated and described as the second dial. However, it is assumed that a push button dial may be used for voice guidance.
A dial receiving unit (not shown) is connected to the office line repeater 32, and when one of them receives the first digit, the other is disconnected by the communication path switch 33.
It is also possible to receive a PB dial.

Next, a second embodiment in which the second dial exchange system 60 of FIG. 1 is a mobile communication system will be described with reference to FIG.

FIG. 3 is a block diagram showing an embodiment in which the switching system 60 of the present invention accommodates a small number of subscriber lines 52.

The second dial exchange system 60 shown in FIG.
Has a dial conversion device 61 for each line of the subscriber line 52 accommodated by the mobile exchange 70, and the mobile exchange 7
Numeral 0 accommodates and connects the subscriber line 52 via the dial converter 61.

The mobile switch 70 is connected to the mobile terminal 40 from the wireless control device 39 via the wireless terminal line 53 in the same manner as in the first embodiment. Further, the mobile switching center 70 can receive the push-button (PB) dial number from the telephone and process the operation as in the conventional case.

That is, the present invention is obtained by adding a dial conversion device 61 to the conventional components.

The dial converter 61 has a switching section 62, a voice dial receiving section 63, a control section 64, a dial number storage section 65, and a PB dial transmitting section 66.

The switching section 62 always connects the subscriber line 52 to the voice dial receiving section 63 and the mobile switchboard 70 to the PB dial transmitting section 66, respectively.
In step 140 following step 3, when the PB dial transmission unit 66 receives a call from the mobile switching center 70, the subscriber line 52 is directly connected to the mobile switching center 70 under the control of the control unit 64.

The voice dial receiving section 63 is connected to the subscriber line 52
1 to 12 in FIG.
Procedure 1 for transmitting the recognition voice of Step 3 and receiving the confirmation request voice
The processing from step 31 to the procedure 133 for receiving the number approval voice is
It is executed under the control of the control unit 64. During this time, the received dial number is stored in the dial number storage unit 65.

When receiving the number approval voice “OK” from voice dial receiving portion 63, control portion 64 drives PB dial transmitting portion 66 to transmit a calling signal to mobile switching center 70.

After receiving a response signal from mobile switching center 70 via PB dial transmission section 66, control section 64 extracts the dial number stored in dial number storage section 65 and sends it to mobile switching center 70 by the PB signal. The transmission is sequentially performed, and when the transmission is completed, the switching unit 62 is instructed to directly connect the subscriber line 52 to the mobile switching center 70.

Mobile switching center 70 selects and calls mobile terminal 41 based on the dial number received in the PB signal, transmits a second ringing tone to subscriber line 52, and ends the calling procedure.

The dial converter 61 monitors the connection path to the subscriber line 52 or the mobile switching center 70, detects the end of the communication, and restores the switching unit 62.

When calling from the mobile terminal 41,
The control unit 64 detects a call from the mobile switching center 70 via the PB dial transmission unit 66, and the switching unit 62 is controlled so that the mobile switching center 70 is directly connected to the subscriber line 52.

The recovery of the incoming call or the notification of the call may be performed by the control unit 64 of the dial conversion device 61 directly transmitting / receiving a signal to / from the mobile switching center 70.

The dial converter 61 of the second embodiment (FIG. 3) stores all the digits in the dial number storage unit 65, activates the mobile exchange 70, and transfers the dial number in the procedure of FIG. Although illustrated and described, the subscriber line 5
In response to the call signal from the mobile switching center 2, the mobile switching center 70 is also activated, and after relaying the response signal of the mobile switching center 70 through the reverse path, the switching unit 6
After the call path is drawn in at step 2 and the procedure of voice dial reception is executed, voice numbers may be converted into PB signals for each digit and transferred.

Similarly, when the mobile exchange 70 receives the PB signal of the first numeral, when the PB signal is notified from the exchange 70 or when the voice dial reception unit 63 recognizes the reception, the dial conversion device 61 Voice dial receiver 6
By exchanging 3 and the like from the subscriber line 52 and directly connecting the exchange 70 to the subscriber line 52, the exchange 70 can also directly receive the remaining PB signals.

Also, in the procedure of FIG. 1, it has been described that the recognition voice is returned one by one of the numbers of the dial number. Can be performed.

[0060]

As described above, according to the present invention,
The second when the switching system that requires the second dialing answers
A voice guidance for generating a dial number by voice is transmitted to the calling side instead of the dial tone of, and the second dial number can be received by voice by recognizing the voice to be received. Thus, there is an effect that a telephone having only a DP dial can be serviced.

[Brief description of the drawings]

FIG. 1 is an operation procedure diagram showing one embodiment of a second dial receiving system of the present invention.

FIG. 2 is a block diagram showing a first embodiment of the present invention.

FIG. 3 is a block diagram showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Calling terminal 20 Public network 30, 60 Switching system 31, 70 Mobile exchange 35 Voice generator 36 Voice recognition unit 40 Called terminal 51, 52 Subscriber line 61 Dial converter 101-151 Procedure

Claims (3)

(57) [Claims] 1. A second dial reception in a switching system connected to a subscriber line of a public network and receiving a dial number to a called terminal as a second dial by an audible signal from the subscriber line in response to an incoming call. In the system, when the switching system receives a call signal from the subscriber line, it automatically responds, and then transmits a message requesting the dial number of the called terminal to the calling side via a voice path by voice guidance. Then, the received voice is recognized and converted to a number code and stored sequentially to form a dial number, and when the received voice is recognized as a predetermined confirmation request, the dial numbers stored so far are continuously voiced. Sending to the calling side, and when the received voice is recognized as a predetermined number approval, calling the called terminal with the stored dial number as the called terminal number,
A second dial receiving system comprising means for sending a second ringing tone to a calling side. 2. The means included in the switching system,
2. The second dial receiving system according to claim 1, wherein an exchange accommodating the subscriber line is provided in the exchange system. 3. A second dial reception in a switching system connected to a subscriber line of a public network and receiving a dial number to a called terminal as a second dial by an audible signal from the subscriber line in response to an incoming call. In the system, the switching system is provided for each of the subscriber lines, and when receiving a call signal from the subscriber line, automatically responds to the message and requests a dial number of the called terminal by a voice guidance. The voice to be transmitted to the calling side is then recognized, and the voice to be received is recognized and converted to a number code and stored sequentially to form a dial number. When the received voice is recognized as a predetermined confirmation request, the dial stored so far is recognized A number is continuously transmitted as voice to the calling side, and when the received voice is recognized as a predetermined number approval, a calling signal transmitted from the public network to an outgoing line which is a called subscriber line is transmitted. When the second dial tone is received together with the outgoing response signal, the stored dial number is transmitted as an audible signal generated by a push button (PB) dial of the telephone, and then the communication path is closed to join from the public network. A dial conversion device for connecting a subscriber line to the outgoing line, and at least one of the subscriber lines accommodated through the dial conversion device, and received by the dial number received when receiving the audible signal by the PB dial. An exchange for calling a calling terminal and transmitting a second ringing tone to a calling side.