JP3926322B2 - TERMINAL DEVICE, ITS OPERATION CONTROL METHOD, AND PROGRAM - Google Patents

Description

  The present invention relates to a terminal device, an operation control method thereof, and a program, and more particularly, to a terminal device that supports both a telephone call using a PSTN (Public Switched Telephony Network) line and a telephone call using an IP (Internet Protocol) network.

  FIG. 3 is a diagram showing the configuration of a conventional terminal device that supports both VoIP (Voice over Internet Protocol) calls and analog telephones.

  In FIG. 3, a conventional terminal device 100 includes a control unit 2, a line interface 3, a telephone interface 4, a PSTN interface 5, a switch 6, an interdigit timer setting table 7, a dial number sending unit 8, A switch control unit 10 and a codec 11 are included.

  The terminal device 100 can connect the telephone 20 and can selectively connect the telephone 20 to the PSTN public line 30 that is an analog public line and the VoIP compatible network 40 that can send and receive IP telephones. . The control unit 2 controls the operation of the terminal device 100.

  The line interface 3 is a TCP (Transmission Control) by ADSL (Asymmetric Digital Subscriber Line), FTTH (Fiber To The Home), 10BASE-T, 100BASE-TX, etc. that can use an IP phone using the VoIP technology. This is an interface for connecting a VoIP compatible network 40 capable of VoIP communication. The telephone interface 4 is an interface for connecting the analog telephone 20. The PSTN interface 5 is an interface for connecting the PSTN public line 30 which is an analog telephone line.

  The switch 6 switches whether the call of the telephone 20 is connected to the PSTN public line 30 as an analog call or connected to the VoIP compatible network 40 as an IP telephone. In the inter-digit timer setting table 7, a time (inter-digit timer value) for determining completion of dialing of the telephone number dialed from the telephone 20 is set. Dial number sending unit 8 sends the telephone number dialed from telephone set 20 received by control unit 2 to PSTN public line 30. The switch control unit 10 controls the connection direction of the switch 6. The codec 11 has a function of converting voice data from the telephone 20 into digital data for VoIP and a function of recognizing a dial number from the telephone 20.

  Next, the operation of the conventional terminal device 100 shown in FIG. 3 will be described. It is assumed that the terminal device 100 is in a state where the VoIP function which is an IP telephone can be used, and the switch 6 is connected to the codec 11 side. Further, it is assumed that 5 seconds is set as the inter-digit timer value in the inter-digit timer setting table 7.

  For example, there is a telephone number that cannot be used with the VoIP function, such as an emergency call (“110”, “119”, etc.). In this case, the terminal device 100 sends the telephone 20 to the PSTN public line 30. There is a need to do.

  In the state where the switch 6 is connected to the codec 11 side in the terminal device 100, when the telephone 20 makes a call to the telephone number “119”, “1 (the first of 119 is the first digit of the outgoing dial) from the telephone 20. 1) ”via the codec 11, the control unit 2 recognizes that this number is a telephone number to be transmitted to the PSTN public line 30 because it is a telephone number starting from“ 1 ”. The dial number “1” is sent to the PSTN public line 30 via 8.

  The control unit 2 waits for the next dial number to be transmitted from the telephone set 20 for 5 seconds set in the interdigit timer setting table 7 using an interdigit timer (not shown). If the next dial number is not recognized within 5 seconds, the transmitted telephone number is “1” and a busy tone is sent from the PSTN public line 30. Here, since “1 (the second digit of 119)” is next sent from the telephone set 20, the control unit 2 sends the dial number “1” to the PSTN public line 30 via the dial number sending unit 8. To do. Subsequently, “9 (third digit of 119)” is received and transmitted to the PSTN public line 30.

  Since the telephone number to be transmitted is “119”, the control unit 2 does not recognize the next dial number for 5 seconds set in the inter-digit timer setting table 7, and from the reception of “9”. After 5 seconds, the control unit 2 considers that dial transmission has been completed, and the switch control unit 10 switches the switch 6 to the PSTN public line 30 side. As a result, a call with the calling party ("119" in this case) becomes possible.

  Further, Patent Document 1 has a selector capable of connecting a telephone terminal to the public line side or the IP network side, and the other party's telephone number is called from the telephone terminal, and transmission to the public line based on the telephone number is made. If it is determined, an adapter device is described in which the selector is switched so as to make a call so that the telephone terminal is connected to the public line side.

JP 2003-101669 A (page 5-6, Fig. 1-4)

  In the terminal device 100 shown in FIG. 3, the caller (in this case “119”) sends the last digit “9” to the PSTN public line 30 and then the incoming call response for 5 seconds set in the interdigit timer setting table 7. If the telephone 20 responds after 5 seconds or more without answering, the telephone 20 can normally communicate with the calling party “119”.

  However, since the control unit 2 switches the switch 6 to the PSTN public line 30 side 5 seconds after the last digit “9” is received and set in the inter-digit timer setting table 7, the calling party is within 5 seconds. When the incoming call is answered, the switch 6 is connected to the codec 11 side, so that the telephone 20 cannot hear until the call from the other party has passed for 5 seconds and the switch 6 is switched.

  For example, if the calling party answers 2 seconds after dialing the number “9 (the last number of 119)”, the content of the calling party saying “Yes, here is XXX” "Oh, yes," and the head of the call (starting part), "Yes, here" for 3 seconds is not heard.

  As described above, the terminal device 100 shown in FIG. 3 confirms the end of input of dial information from the telephone 20 using the interdigit timer, and controls the switch 6 in response to the expiration of the interdigit timer. The connection of the telephone 20 is switched, but if the calling party answers before the inter-digit timer expires, the switch 6 is switched after the calling party starts the call, and the call from the calling party is cut off. There was a problem.

  On the other hand, in the adapter device described in Patent Document 1, since the selector is switched so as to connect the telephone terminal to the public line side, the above problem in the terminal device 100 of FIG. 3 does not occur. There is a problem that a delay occurs in transmission from the terminal device 100 of FIG.

  An object of the present invention is to provide a terminal device, an operation control method thereof, and a program capable of making a call without breaking the head of a call from a caller.

The terminal device according to the present invention is a switch for connecting a telephone to either the first communication line side that communicates using a telephone number or the second communication line side that communicates using an identifier indicating an address on the communication network. And a terminal device capable of selecting a telephone call using the first communication line and a telephone call using the second communication line, the terminal device receiving an incoming call response from the telephone to the first communication line. A response detecting means for detecting, and a first determination for determining the end of input of the dial information based on a time interval for each digit of dial information input at the time of transmission from the telephone to the first communication line and a judging means, said switching means, said switching the connection in response to said telephone in the detection of the incoming response by the response detection means to the first communication line side, the incoming response without the first determination hand Wherein when it is determined that the input end of dialing information, wherein to switch between the connections of the telephone to the first communication line side by.

  Further, in the terminal device, the second determination means for determining whether or not the transmission is made to the first communication line every time each digit of the dial information is input from the telephone, and the second determination means When it is determined that the call is transmitted to the first communication line, the first communication line is switched without switching the connection of the telephone to the first communication line side by the switch means for each digit of the dial information already input. The dial information inputted thereafter is sequentially sent to the first communication line without switching the telephone connection to the first communication line by the switch means. Means for performing.

  In the terminal device, the first communication line is a PSTN (Public Switched Telephony Network) line, and the second communication line is an IP (Internet Protocol) network.

The operation control method according to the present invention connects a telephone to either the first communication line side that communicates using a telephone number and the second communication line side that communicates using an identifier indicating an address on the communication network. An operation control method for a terminal device having switch means and capable of selecting a call using the first communication line and a call using the second communication line, wherein the call is sent from the telephone to the first communication line A step of detecting an incoming call response of the other party, a step of switching the connection of the telephone to the first communication line side by the switch means in response to the detection of the incoming call response, and a connection from the telephone to the first communication line Determining the end of input of the dial information based on a time interval for each digit of dial information input at the time of outgoing call; Characterized in that it comprises a step of switching the connection of said telephone to said first communication line side by the switch means to be constant.

The program according to the present invention is a switch means for connecting a telephone to either the first communication line side communicating using a telephone number and the second communication line side communicating using an identifier indicating an address on the communication network. And a program for causing a computer to execute an operation control method of a terminal device capable of selecting a call using the first communication line and a call using the second communication line, and the first communication from the telephone. detecting an incoming call response Sender for outgoing to the line, a step of switching the connection of said telephone by said switching means in response to detection of the incoming call response to the first communication line side, the from the telephone first Determining the end of input of the dial information based on a time interval for each digit of dial information input at the time of transmission to one communication line; By the switching means to be determined with the input end of the signal response without the dial information; and a step of switching the connection of said telephone to said first communication line side.

  As described above, in the present invention, response detecting means for detecting an incoming call response of a calling party to a call from the telephone to the PSTN line is provided, and in response to detection of the incoming response by the response detecting means, the telephone is connected to the PSTN line side. Since the switch means connected to either one of the IP network side connects the telephone to the PSTN line side, the telephone is transmitted from the telephone to the PSTN line in a state where the telephone is connected to the IP network side, Even if the other party answers before the expiration of the inter-digit timer, which is judged to be the completion of input of dial information when making a call, switching the call at the time of response prevents the call from being cut off can do.

  According to the present invention, switch means for connecting a telephone to either the first communication line side that communicates using a telephone number or the second communication line side that communicates using an identifier indicating an address on the communication network A terminal device capable of selecting a call using the first communication line and a call using the second communication line, and detecting an incoming call response of the caller to the call from the telephone to the first communication line. By switching the telephone connection to the first communication line side by the switch means in response to the detection, it is possible to obtain an effect that the call can be performed without breaking the head of the call from the calling party.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a terminal device according to an embodiment of the present invention, and the same parts as those in FIG. 3 are denoted by the same reference numerals. 1, a terminal device 1 according to an embodiment of the present invention includes a control unit 2, a line interface 3, a telephone interface 4, a PSTN interface 5, a switch 6, an interdigit timer setting table 7, and a dial number transmission. Unit 8, polarity reversal detection unit 9, switch control unit 10, and codec 11. As described above, the terminal device 1 according to the embodiment of the present invention is different from the conventional terminal device 100 of FIG.

  The terminal device 1 can be connected to the telephone 20 and can be selectively connected to the PSTN public line 30 that is an analog public line and the VoIP compatible network 40 that can send and receive IP telephones. . Note that the telephone 20 may be built in the terminal device 1.

  The polarity reversal detection unit 9 is a response detection unit that detects an incoming call response of a caller to a call from the telephone 20 to the PSTN public line 30. Since the PSTN public line 30 notifies that the polarity of the line is reversed from the PSTN public line 30 whether or not the other party has responded when making a call to the PSTN public line 30, the polarity reversal detection unit 9 The response to the transmission is detected by detecting the polarity reversal.

  The control unit 2 controls the operation of the terminal device 100. In response to detection of an incoming call response by the polarity reversal detection unit 9, the switch control unit 10 connects the switch 6 to the PSTN interface 5 and connects the telephone 20 to the PSTN interface 5. Connect to PSTN public line 30.

  Since the other components are the same as those in FIG. 3 and have already been described, description thereof will be omitted. In addition, the IP telephone function by the VoIP function and the connection function to the PSTN public line 30 are well known to those skilled in the art and are not directly related to the present invention, so the detailed configuration and description thereof will be omitted.

  Next, the operation of the terminal device 1 according to the embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a flowchart showing the operation of the terminal device 1 shown in FIG.

  For example, there is a telephone number that cannot be used with the VoIP function, such as an emergency call (“110”, “119”, etc.). In this case, the terminal device 1 sends the telephone 20 to the PSTN public line 30. There is a need to do.

  Hereinafter, the operation of the terminal device 1 according to the embodiment of the present invention will be described taking a case where a call is made to the telephone number “119” as an example. It is assumed that the terminal device 1 is in a state where the VoIP function which is an IP phone can be used, and the switch 6 is connected to the codec 11 side. Further, it is assumed that 5 seconds is set as the inter-digit timer value in the inter-digit timer setting table 7.

  In the state where the switch 6 is connected to the codec 11 side in the terminal device 1, when the telephone 20 makes a call to the telephone number “119”, the control unit 2 sets “1” as the first digit of the outgoing dial from the telephone 20. 1 (first 1 of 119) "is received via the codec 11 (step S1), an interdigit timer (not shown) is started and it is determined whether or not the call is a call to the PSTN public line 30. (Step S2).

  That is, the control unit 2 compares the received dial number with a number registered in advance in a memory (not shown), and if there is a number in the memory that matches the received dial number, Judge that there is. Since the number “1” is registered in the memory, the control unit 2 that has received “1”, which is the first digit of “119”, from the telephone set 20 determines that the call is outgoing to the PSTN public line 30 ( Step S2, YES), the process proceeds to Step S5.

  In addition to the number “1”, a number for determining that the call is transmitted to the PSTN public line 30 may be registered in the memory. For example, when the number “XY” is registered in the memory and the telephone 20 makes a call to the telephone number “XYZ...”, When the first digit “X” is received in step S 1, the PSTN public line is still It is not determined that the call is sent to 30 (step S2, NO). Then, before the timer between digits started in response to reception of the first digit “X” expires, that is, before 5 seconds (interdigit timer value) elapses from the reception of the first digit “X” ( When the second digit “Y” is received (step S4, NO) (step S3, YES), the control unit 2 stops and restarts the interdigit timer, and again based on the reception dial number “XY”. A determination is made to determine that the call originates on the PSTN public line 30 (step S2, YES), and the received dial number “XY” is sequentially sent to the PSTN public line 30 via the dial number sending unit 8 (step S5). If it is determined that the call is not transmitted to the PSTN public line 30 (step S2, NO), and the interdigit timer expires without receiving the next digit number (step S4, YES), VoIP Transmission by function is performed.

  Returning to the previous example of making a call to the telephone number “119”, after receiving the first digit “1” of “119” and determining that the call is sent to the PSTN public line 30 (step S2, YES), the control unit 2 sends the dial number “1” to the PSTN public line 30 via the dial number sending unit 8 (step S5). Here, if the inter-digit timer started in response to reception in step S1 without receiving the next dial number (step S8, YES), the control unit 2 uses the switch control unit 10 to switch 6 Is switched to the PSTN public line 30 side (step S9), the transmitted telephone number is “1”, and a busy tone is sent from the PSTN public line 30.

  When the inter-digit timer started in response to reception in step S1 times out (step S8, NO), the control unit 2 receives “1 (second digit of 119)” from the telephone set 20 (step 119). (S6, YES), the interdigit timer is stopped and restarted, and the dial number “1” is sent to the PSTN public line 30 via the dial number sending unit 8 (step S5). Similarly, when “9 (the third digit of 119)” is received in the same manner (step S6, YES), the control unit 2 stops and restarts the interdigit timer, and dials the dial number via the dial number sending unit 8. “9” is sent to the PSTN public line 30 (step S5).

  Since the telephone number to be transmitted is “119”, after sending the dial number “9”, the control unit 2 times up the interdigit timer started in response to the reception of “9” in step S6. You will not receive the next dialed number until you do.

  After the dial number “9” is sent, if the calling party (“119”) responds to the incoming call before the inter-digit timer expires, the PSTN public line 30 is notified that the line has been reversed by reversing the polarity of the line. Come on. When the polarity reversal detection unit 9 detects this polarity reversal (step S7, YES), the control unit 2 recognizes that the calling party has responded, and the switch control unit 10 switches the switch 6 without waiting for the timer of the interdigit timer to expire. Is switched to the PSTN public line 30 side (step S9). As a result, the telephone 20 can normally communicate with the calling party.

  On the other hand, after the dial number “9” is transmitted, if the inter-digit timer expires without detecting the incoming call response of the calling party (step S8, YES), the control unit 2 causes the switch control unit 10 to switch the switch 6 to PSTN. Switch to the public line 30 side (step S9).

  As described above, in the embodiment of the present invention, since the polarity reversal detection unit 9 monitors the response of the caller and switches the switch 6 to the PSTN public line 30 side, the terminal device 1 uses the VoIP function. Even if the call is sent to the PSTN public line 30 in a possible state, it is possible to prevent the call from the calling party from being cut off, and the user of the telephone 20 can start the call normally. In addition, the user can make a call without being aware of the line to be sent.

  The processing operation of the terminal device 1 according to the flowchart shown in FIG. 2 is realized by causing a computer, which is a CPU (control unit), to read and execute a program stored in a storage medium such as a ROM in advance. Of course you can.

It is a figure which shows the structure of the terminal device by the Example of this invention. It is a flowchart which shows operation | movement of the terminal device of FIG. It is a figure which shows the structure of the conventional terminal device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Terminal apparatus 2 Control part 3 Line interface 4 Telephone interface 5 PSTN interface 6 Switch 7 Interdigit timer setting table 8 Dial number sending part 9 Polarity inversion detection part 10 Switch control part 11 Codec 20 Telephone 30 PSTN public line 40 VoIP correspondence network

Claims (9)

Switch means for connecting a telephone to either the first communication line side for communicating using a telephone number or the second communication line side for communicating using an identifier indicating an address on the communication network; A terminal device capable of selecting a call using a communication line of the first communication line and a call using the second communication line,
Response detection means for detecting an incoming call response of the other party to the call from the telephone to the first communication line, and for each digit of dial information input when making a call from the telephone to the first communication line First determining means for determining the end of the input of the dial information based on the time interval of , wherein the switch means connects the telephone in response to detection of an incoming response by the response detecting means. switching to one communication line side, when it is determined that the input end of the dial information by the no incoming call response first judging means and to switch between the connection of said telephone to said first communication line side Terminal equipment. A second determination means for determining whether or not a call is made to the first communication line every time each digit of the dial information is input from the telephone; and the second determination means sends the first communication line to the first communication line. When it is determined that the transmission is made, each digit of the dial information already input is sent to the first communication line without switching the telephone connection to the first communication line side by the switch means, and thereafter Means for transmitting each digit of the input dial information by sequentially sending the dial connection to the first communication line without switching the telephone connection to the first communication line side by the switch means. The terminal device according to claim 1, wherein: 3. The terminal device according to claim 1, wherein the first communication line is a PSTN (Public Switched Telephony Network) line, and the second communication line is an IP (Internet Protocol) network . Switch means for connecting a telephone to either the first communication line side for communicating using a telephone number or the second communication line side for communicating using an identifier indicating an address on the communication network; The operation control method of the terminal device capable of selecting a call using the communication line and a call using the second communication line,
A step of detecting an incoming call response of a caller with respect to an outgoing call from the telephone to the first communication line, and switching the telephone connection to the first communication line side by the switch means in response to the detection of the incoming call response. Determining the end of input of the dial information on the basis of a time interval for each digit of dial information input when making a call from the telephone to the first communication line; A step of switching the connection of the telephone to the first communication line side by the switch means when it is determined that the input of dial information has been completed. Each time each digit of dial information is input from the telephone, it is determined whether or not the call is to be sent to the first communication line, and if it is determined that the call is to be sent to the first communication line, the already input Each digit of dial information is sent to the first communication line without switching the telephone connection to the first communication line by the switch means, and each digit of the dial information inputted thereafter is sent to the first communication line. 5. The operation control method according to claim 4, further comprising the step of transmitting by sequentially sending to the first communication line without switching the connection of the telephone to the first communication line by the switch means. . 6. The operation control method according to claim 4, wherein the first communication line is a PSTN (Public Switched Telephony Network) line and the second communication line is an IP (Internet Protocol) network . Switch means for connecting a telephone to either the first communication line side for communicating using a telephone number or the second communication line side for communicating using an identifier indicating an address on the communication network; A program for causing a computer to execute an operation control method of a terminal device capable of selecting a call using a communication line of the terminal and a call using the second communication line,
A step of detecting an incoming call response of a caller with respect to an outgoing call from the telephone to the first communication line, and switching the telephone connection to the first communication line side by the switch means in response to the detection of the incoming call response. Determining the end of input of the dial information on the basis of a time interval for each digit of dial information input when making a call from the telephone to the first communication line; And switching the connection of the telephone to the first communication line side by the switch means when it is determined that the input of dial information is completed. Each time each digit of dial information is input from the telephone, it is determined whether or not the call is to be sent to the first communication line, and if it is determined that the call is to be sent to the first communication line, the already input Each digit of dial information is sent to the first communication line without switching the telephone connection to the first communication line by the switch means, and each digit of the dial information inputted thereafter is sent to the first communication line. 8. The program according to claim 7, further comprising the step of making a call by sequentially sending to the first communication line without switching the connection of the telephone to the first communication line by the switch means. 9. The program according to claim 7, wherein the first communication line is a PSTN (Public Switched Telephony Network) line and the second communication line is an IP (Internet Protocol) network .

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