JP2009004825A - Device compatible with ip telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device compatible with an IP telephone capable of preventing incoming call rejection because of disabled caller telephone number display for a call from any telephone set by a simple operation after an incoming call is rejected because of disabled caller telephone number display. <P>SOLUTION: The device 10 compatible with the IP telephone has a memory circuit 4 to register incoming call telephone numbers to which a user wants add special numbers to make a call. If a registered telephone number coincides with an incoming call telephone number included in a received session start request, a specific number is added to the incoming call destination telephone number and the telephone number is transferred as a transfer session start request. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an IP telephone compatible device, and more particularly to an IP telephone compatible device that can cope with incoming call rejection due to non-notification of caller telephone number.

  As a telephone service, there is a service for notifying a caller telephone number (caller telephone number notification service) so that the caller can know the telephone number of the caller before answering. If this service is used, the incoming side can respond only to an incoming call from a specific telephone number or reject an incoming call from a specific telephone number.

  In addition, there is a service for notifying the caller telephone number for each line (non-notification service for each line). If this service is used, it is possible to prevent the caller's telephone number notification service from unintentionally being notified of a telephone number to an unintended partner.

  In addition, there is a service (number request service) that prompts the caller to notify the caller telephone number and make a call again when there is an incoming call without notification of the caller telephone number.

  The above service is also provided in the IP telephone service.

  Now, when you make a call from the sender receiving the non-notification service for each line to the destination receiving the number request service, a voice message flows to notify you of the caller's phone number and start the call again. Disconnected (rejected call). In such a case, a special number (hereinafter referred to as a specific number) that temporarily permits notification of the caller telephone number (for example, “186”) is added to the destination telephone number and the call is re-transmitted. Even a sender receiving a notification service can make a call by temporarily notifying a caller telephone number.

  Conventionally, when such an incoming call rejection has been made, a facsimile apparatus that improves convenience after that can be registered with a one-touch dial or abbreviated dial by a simple operation of a destination telephone number added with a specific number. Yes (Patent Document 1).

JP 20004311 A

  The technology employed in the conventional facsimile apparatus is configured to determine that the incoming call has been rejected when a state of no response is repeated a predetermined number of times. Therefore, it can be applied only to a facsimile machine configured to automatically repeat outgoing calls until there is an incoming call response, and cannot be applied as it is to an IP telephone compatible apparatus to which a telephone is connected. There is a point.

  In addition, when a plurality of telephones (including IP telephones) are connected to an IP telephone compatible device, when a call from a certain telephone is rejected because the caller telephone number is not notified, a specific number is assigned to the incoming telephone number. Even if the number added with can be registered in an abbreviated dial or the like, the abbreviated dial or the like cannot be used from another telephone connected to the same IP telephone compatible device.

  Therefore, the present invention allows a plurality of telephones to be connected, and when a call from one telephone is rejected due to non-notification of the caller telephone number, it is easy to operate from which telephone. An object of the present invention is to provide an IP telephone compatible device that can avoid call rejection due to non-notification of a caller telephone number even if it is a call.

  In order to achieve the above object, the present invention is capable of connecting a plurality of telephones, and transferring an incoming session start request transmitted from any of the plurality of telephones to the network side as a transfer session start request. In the telephone-compatible device, a storage unit for storing a registered telephone number, and a determination unit for determining whether or not a registered telephone number that matches a destination telephone number included in the reception session start request is stored in the storage unit When a registered telephone number that matches the destination telephone number is stored in the storage means, a specific number is added to the destination telephone number, and it is included in the transfer session start request and transferred to the network side. And a transfer means.

  According to the present invention, a telephone number to which a specific number is added is registered in an IP telephone compatible apparatus to which a plurality of telephones are connected, and the destination telephone number included in the session start request is registered with the registered telephone number. When a match is made, a specific telephone number is automatically added to the destination telephone number, so that any number of telephones connected to the IP telephone compatible device can make a call, and the caller telephone number is not notified. Call rejection can be avoided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram of an IP telephone compatible device 10 according to an embodiment of the present invention. The IP telephone compatible device 10 shown in FIG. 1 uses an IP telephone service, monitors a line state, and controls the line according to an instruction from the control circuit 1, and a telephone connected to a telephone port for an IP telephone. Or a SIP control circuit 3 for controlling SIP (Session Initiation Protocol) during an IP telephone extension / outside call from an IP telephone terminal connected from a wired / wireless LAN, and an IP telephone number and its IP telephone number as a destination A memory circuit 4 for storing the special number additional information, which means that the specific number “186” is always added or only added once when making a call, and the caller telephone number is not notified. When the incoming call is rejected, the voice reproduction that sends a voice message that prompts the user to set (PB setting) whether or not to store the special telephone number additional information in association with the IP telephone number and store it in the memory circuit 4 Path 5, a DTMF (Dial Tone Multi Frequency) transmission / reception circuit 6 for detecting a PB signal from a connected telephone or an IP telephone terminal, a timer 7 activated by an instruction from the control circuit 1, and an analog for controlling the connected telephone A control circuit 8, an IP telephone terminal control circuit 9 for controlling the connected IP telephone terminal, and a control circuit 1 for controlling the entire IP telephone compatible device are provided.

  The IP telephone compatible device 10 operates under the control of the control circuit 1. For example, the control circuit 1 instructs the SIP control circuit 3 to transmit / receive a SIP message and analyze it, and to manage the extension / outside call. Further, the control circuit 1 instructs the analog control circuit 8 to monitor the PB signal and hook state from the connected telephone, to control the tone, to transmit and disconnect the telephone, and to manage the state of the connected telephone. Further, the control circuit 1 monitors the connection state of the wired / wireless LAN of the connected IP telephone terminal, controls the transmission / disconnection of the IP telephone terminal, and the state of the connected IP telephone terminal. Direct management.

  In this embodiment, under the control of the control circuit 1, the SIP control circuit 3 functions as transfer means for transferring a session start request. Further, as a determination means for determining whether or not the incoming call is rejected due to non-notification of the caller telephone number, the control circuit 1 uses the designation input as to whether or not to register the caller telephone number as a prompting means, and receives an incoming call according to the designation input. It functions as storage control means for storing the telephone number in the memory circuit.

  Next, the operation of the IP telephone compatible device 10 of FIG. 1 will be described with reference to FIGS.

  FIG. 2 is a SIP sequence diagram for explaining the procedure from the origination of the IP telephone terminal to the termination of the operation due to call rejection. FIG. 3 is a diagram for explaining the operation for deciding which of the normal process, the disconnection process and the setting process should be executed. 4 is a flowchart for explaining the operation of the setting process, FIG. 5 is a diagram showing a storage state in the memory circuit 4, and FIG. 6 is a call with a specific number added in response to a call request from the IP telephone terminal. FIG. 7 is a flow chart for explaining the operation of the outgoing call processing, and FIG. 8 is a flow chart for explaining the processing operation for the memory circuit after the outgoing call processing. It is a flowchart.

  Referring to FIG. 2, IP phone compatible device 10 is interposed between IP phone 20 and SIP server 30.

  When the user issues a call request (for example, dialing “04-1234-2222”), the IP telephone terminal 20 transmits (calls) an “INVITE” message S201 to the IP telephone compatible device 10 as a session start request.

  In the IP telephone compatible device 10, the “INVITE” message S 201 from the IP telephone terminal 20 is received by the IP telephone terminal control circuit 9 and the transmission is recognized. The “INVITE” message S201 is sent from the IP telephone terminal control circuit 9 to the SIP control circuit 3 via the control circuit 1. Based on the received “INVITE” message S201, the SIP control circuit 3 generates a “INVITE” message S210 based on the outgoing call process, and sends it to the SIP server 30 on the WAN side as a transfer session start request via the line control circuit 2. Send it out. The calling process will be described later with reference to FIG.

  When the SIP server 30 receives the “INVITE” message S210, the SIP server 30 attempts to transfer to the destination and transmits a “100 Trying” message S211 to the IP telephone compatible device 10.

  When receiving the “100 Trying” message S 211, the IP phone compatible device 10 transmits a “100 Trying” message S 202 to the IP phone terminal 20.

  Furthermore, the SIP server 30 transmits a “200 OK” message S212 indicating that there is a response from the destination to the IP telephone compatible device 10.

  The SIP control circuit 3 of the IP telephone compatible device 10 that has received the “200 OK” message from the SIP server 30 sends a “200 OK” message S203 to the IP telephone terminal 20 via the control circuit 1 and the IP telephone terminal control circuit 9. Send.

  Upon receiving the “200 OK” message S203, the IP telephone terminal 20 transmits an “ACT” message S204 to the IP telephone compatible device 10.

  When receiving the “ACT” message from IP telephone terminal 20, IP telephone compatible device 10 transmits “ACT” message S 213 to SIP server 30.

  Here, the IP telephone compatible device 10 receives a caller telephone number non-notification service for each line, and the destination receives a service (number request) for rejecting an incoming caller telephone number non-notification. Then, a voice message S205 is sent from the SIP server 30 to the IP telephone terminal 20 to notify the caller telephone number and prompt the call to be sent again. The SIP server 30 transmits a “BYE” message S214 to the IP telephone compatible device 10 after transmitting the voice message.

  Upon receiving the “BYE” message from the SIP server 30, the IP telephone compatible device 10 transmits an “ACT” message S 215 to the SIP server 30.

  Thereafter, a setting process S206 described later is performed between the IP telephone compatible device 10 and the IP telephone terminal 20.

  Then, the IP telephone compatible device 10 transmits a “BYE” message S208 to the IP telephone terminal 20 as the disconnection process S207. The IP telephone terminal 20 that has received the “BYE” message S 208 transmits an “OK” message S 209 to the IP telephone compatible device 10.

  The above is the procedure from the transmission of the IP telephone terminal 20 to the end of the operation due to call rejection.

  When making a call from a telephone connected to the analog control circuit 8 (telephone port) instead of the IP telephone terminal 20, the analog control circuit 8 recognizes that the destination telephone number has been dialed (outgoing) and performs control. Under the control of the circuit 1, the SIP control circuit 3 transmits an “INVITE” message S 210 to the SIP server 30. That is, the dial tone is a session start request.

  When the “100 Trying” message S211 and the “200 OK” message S212 are received from the SIP server 30, the IP telephone corresponding device 10 transmits an “ACT” message S213 to the SIP server 30. "INVITE" message S201, "100 Trying" message S202, "200 OK" message S203, and "ACT" message S204 are not transmitted / received.

  The determination as to whether or not the incoming call is rejected due to non-notification of the caller telephone number is the same as that for the IP telephone terminal 20 for the telephone. Also, the “BYE” message S208 and the “OK” message S209 are not transmitted / received, and the IP telephone compatible device 10 transmits a busy tone to the telephone as the disconnection process S207, and disconnects the path when detecting the on-hook of the telephone.

  In the procedure shown in FIG. 2 described above, the setting process S206 is performed. However, when a call is made, the IP telephone compatible device 10 may perform normal processing or disconnect processing in addition to performing the setting processing S206. The operation of determining whether the IP telephone compatible device 10 should perform normal processing, disconnection processing, or setting processing will be described with reference to FIG.

  After receiving the “100 Trying” message S211 from the SIP server 30, the SIP control circuit 3 of the IP telephone compatible device 10 determines whether or not the “200 OK” message S212 is received in Step 301.

  Here, it is determined that the “200 OK” message S212 has not been received when a message other than the “200 OK” message S212 has been received. In that case, the received message and thus normal processing is performed. For example, when a “180 Ringing” message is received, the telephone corresponding to the destination telephone number is being called, and the other party answers and the telephone is busy (same as the sequence in FIG. 6 described later). If the destination telephone number is not used, a “183 Session Progress” message is received, and a “487 Request Terminated” message is received and the call is disconnected.

  If it is determined in step 301 that the “200 OK” message S212 has been received, the SIP control circuit 3 receives the “ACT” message S204 from the IP telephone terminal 20, and in step 302 sends the “ACK” message S213 to the SIP server. 30. In addition, the control circuit 1 starts the timer 7 in step 303.

  Next, if there is a state change such as detecting a PB signal in step 304 without receiving the “BYE” message S214, the control circuit 1 performs normal processing according to the state change.

  For example, when various settings are made in order to use the transfer service (voice warp) in the IP telephone service, the PB signal from the IP telephone terminal 10 is input. Therefore, when the DTMF transmission / reception circuit 6 receives the PB signal, the control circuit 1 Performs normal processing accordingly.

  If the “BYE” message S214 is received in step 304, the control circuit 1 checks the timer 7 in step 305. If it is within a predetermined time range (for example, between 26 seconds and 28 seconds), the control circuit 1 In step 306, the timer 7 is stopped and the setting process S206 is executed. On the other hand, if the “BYE” message S214 is received in step 304 but is outside the predetermined time range, the control circuit 1 executes a disconnection process.

  In step 305, the subsequent processing is determined based on the time when the “BYE” message S214 is received for the following reason.

  When the destination is subscribed to a number request that is an additional service of the IP phone service and is executed, the IP phone compatible device 10 is connected to the line for which the caller telephone number is not notified for each line. In this case, the time from when the SIP server 30 receives the “ACK” message S213 to when the voice message S205 is transmitted and the “BYE” message S214 is transmitted is set to 27 seconds, for example. . In addition, when a call is made from a telephone without an IP telephone service contract to a destination telephone number that receives the IP telephone service, the SIP server 30 receives a voice message different from the voice message S205, for example, The time from sending the voice message “This service cannot be used from the new phone” to sending the “BYE” message S214 is, for example, 7 seconds. Therefore, the IP telephone compatible device 10 determines whether or not the voice message S205 has been transmitted by measuring the time from when the “ACK” message S213 is transmitted until the “BYE” message S214 is received. Can do. Note that the voice message S205 is a message that repeats twice, for example, “Sorry, please dial your phone number before dialing, for example, dial 186”.

  Next, the setting process S206 will be described with reference to FIG.

  First, in step 401, the control circuit 1 starts again (after clearing) the timer 7 previously stopped in step 306.

  Subsequently, the control circuit 1 forms a voice path between the voice reproduction circuit 5 and the IP telephone terminal 10, and in step 402, voice guidance prompting the user of the IP telephone terminal 10 to input a PB signal is sent. . The voice guidance is played back by the voice playback circuit 5, for example, "Did you request a specific number (186) before the phone number? I want to call this phone number once with a specific number (186) automatically. If you want to make a call with a specific number (186) always added to this phone number, enter * 0, otherwise enter **. Similarly, a call from an IP telephone terminal is made with 186 ".

  Next, the control circuit 1 monitors the PB signal input from the IP telephone terminal 10 by the user according to the voice guidance, and determines whether or not the PB signal is input in Step 403.

  When the PB signal is detected within a predetermined time, the control circuit 1 identifies the input PB signal using the DTMF transmission / reception circuit 6 in step 404.

  When it is determined that “* 1” or “* 0” is input as the PB signal in the above-described example, the control circuit 1 stores the destination telephone number and the content of the PB signal in the memory circuit 4 in step 405. Store (register) the corresponding special number additional information in association with each other. And the control circuit 1 stops the timer 7 by step S406, and progresses to cutting process S207.

  FIG. 5 shows an example of the storage state in the memory circuit 4. When the IP telephone compatible device 10 receives the “INVITE” message S201 from the IP telephone terminal 20, the destination telephone number is extracted from the received message and temporarily stored in a predetermined area of the memory circuit 4. When “* 1” or “* 0” instructing registration is detected in step 404, the destination telephone number is moved to the registration area. If the PB signal detected in step 404 is “* 0”, the special number additional information “ON” indicating that the specific number “186” will always be added to the destination telephone number in the future is added. Registered in association. If the PB signal detected in step 404 is “* 1”, the special number additional information “OFF” indicating that the specific number “186” is added only once when the next call is made to the destination telephone number. "Is registered in association with each other. In FIG. 5, when the destination telephone number is “04-1234-1111”, “* 0” is PB input in Step 404, and when the destination telephone number is “04-1232-2222”, “ * 1 "shows the storage state in the memory circuit 4 when PB is input.

  Referring again to FIG. 4, if it is determined in step 404 that “**” in the above example is input as the PB signal, the control circuit 1 jumps to step 406. At this time, the destination telephone number that is the current destination temporarily stored in the memory circuit 4 is deleted.

  If the PB signal is not detected in step 403 and it is determined in step 407 that the predetermined time has elapsed, the control circuit 1 performs the cutting process S207.

  Note that the setting process S206 is similarly performed when a call is made from a telephone connected to the analog control circuit 8 (telephone port) instead of the IP telephone terminal 10.

  Next, with reference to FIG. 6, the procedure for making a call to a destination telephone number registered in the memory circuit 4 will be described. Here, it is assumed that the stored information in the memory circuit 4 is as shown in FIG. 5 and is transmitted to the destination telephone number “04-1232-2222”.

  The IP telephone terminal 20 transmits an “INVITE sip: 04123342222” message T501 to the IP telephone compatible apparatus 10 in response to the user's call request.

  In the IP telephone compatible device 10, the IP telephone terminal control circuit 9 recognizes the outgoing call, and the SIP control circuit 3 receives the “INVITE sip: 04123342222” message T 501 through the control circuit 1.

  Upon receiving the “INVITE sip: 04123422222” message T501, the SIP control circuit 4 executes a calling process described later, and determines that “04-1232-2222” is registered in the memory circuit 4 as the destination telephone number. A specific number “186” is added to the head of the message, and an “INVITE sip: 18604123342222” message T507 is generated and transmitted to the SIP server 30.

  When receiving the “INVITE sip: 18604123342222” message T507, the SIP server 30 transmits a “100 Trying” message T508 to the IP telephone compatible device 10. Also, a “180 Ringing” message T509 is transmitted to the IP telephone compatible device 10.

  Upon receiving the “100 Trying” message T508 from the SIP server 30, the IP telephone compatible device 10 deletes the specific number “186” added to the head of the destination telephone number included in the message, and the “100 Trying” message. It transmits to IP telephone terminal 20 as T502. Further, upon receiving the “180 Ringing” message T509 from the SIP server 30, the IP phone compatible device 10 transmits the “180 Ringing” message T503 to the IP phone terminal 20.

  When receiving the “180 Ringing” message T503 from the IP telephone compatible device 10, the IP telephone terminal 20 transmits a “200 OK” message T504 to the IP telephone compatible device 10.

  Upon receiving the “200 OK” message T504 from the IP phone terminal, the IP telephone compatible device 10 adds the specific number “186” to the destination telephone number included in the message and generates a “200 OK” message T510. Transmit to the SIP server 30.

  Upon receiving the “200 OK” message T510, the SIP server 30 transmits an “ACT” message T511 to the IP telephone compatible device 10.

  Upon receiving the “ACT” message T511, the IP telephone compatible device 10 deletes the specific number “186” added to the head of the destination telephone number included in the received message, and the IP telephone as the “ACT” message T505. It transmits to the terminal 20. Thereby, communication is established (T506).

  In the case of a call from a telephone connected to the telephone port (analog control circuit 8), the analog control circuit 8 of the IP telephone compatible device 10 recognizes the call (session establishment request) by dialing the destination telephone number. . Then, under the control of the control circuit 1, the SIP control circuit 3 generates an “INVITE sip: 18604123222” message T507 in which the specific number “186” is added to the head of the dialed destination telephone number “04-123-2222”. Then, it is transmitted to the SIP server 30 as a transfer session establishment request. Thereafter, the SIP server 30 transmits a “100 Trying” message T508 and a “180 Ringing” message T509. The IP telephone compatible device 10 transmits the “200 OK” message T510 to the SIP server 30 without transmitting the “100 Trying” message T502 and the “180 Ringing” message T503 to the telephone. Also, the SIP server 30 transmits an “ACT” message T511 to the IP telephone compatible device 10. The IP telephone compatible device 10 does not transmit the “ACT” message T505 to the telephone. Communication between the telephone and the IP telephone compatible device 10 is performed under the control of the analog control circuit 8.

  Next, the calling process will be described with reference to FIG.

  When receiving the “INVITE” message T 501 in step 601, the IP telephone compatible device 10 reads the destination telephone number included in the message and temporarily stores it in the memory circuit 4. Then, the IP telephone compatible device 10 searches the memory circuit 4 and determines whether or not a destination telephone number that matches the read destination telephone number is registered.

  If the destination telephone number that matches the destination telephone number read from the received message is registered in the memory circuit 4, the SIP control circuit 3 of the IP compatible telephone device 10 sets the destination telephone number at the head in step 603. The specific number “186” is added and transmitted to the SIP server 30 as an “INVITE” message T507.

  When the destination telephone number that matches the destination telephone number read from the received message is not registered in the memory circuit 4, normal outgoing call processing is performed. That is, the IP telephone compatible device 10 transmits the received “INVITE” message to the SIP server 30 without adding the specific number “186”. In addition, when receiving the “200 OK” message T504, the IP phone compatible device 10 transmits the “200 OK” message T510 to the SIP server 30 without adding the specific number “186”.

  Next, with reference to FIG. 8, the operation of organizing stored information in the memory circuit 4 after establishing a call will be described.

  After the communication is established, the control circuit 1 reads the destination telephone number temporarily stored in the memory circuit 4 in step 701. In step 702, the control circuit 1 determines whether the destination telephone number that matches the read destination telephone number is registered in the memory circuit 4 together with the special number additional information “OFF”.

  When the destination telephone number that matches the read destination telephone number is registered in the memory circuit 4 together with the special number additional information “OFF”, the control circuit 1 determines that the destination telephone number and special number additional information “OFF” in step 703. "Is deleted (cleared).

  Here, since the call is made to the destination telephone number “04-1232-2222”, after the call is established, the control circuit 1 adds the destination telephone number “04-1232-2222” registered in the memory circuit 4 and the special number. The information “OFF” is deleted. As a result, when the next call is made to the destination telephone number “04-1234-2222”, the IP telephone compatible device 10 does not add the specific number “186” and sends the “INVITE” message to the SIP server 30. Transmission is performed. This assumes the case where it is desired to make a call only once to the destination receiving the number request service, such as when making a call to an order reception service.

  If it is determined in step 702 that the destination telephone number matching the read destination telephone number is not registered in the memory circuit 4 together with the special number additional information “OFF”, the control circuit 1 temporarily stores the destination telephone number. Clear the number and end the operation.

  The transmission processing and the operation for organizing the stored information in the memory circuit 4 are performed in the same manner as described above even in the case of transmission from a telephone connected to the analog control circuit 8.

  As described above, in the IP phone compatible device 10 of this embodiment, when an incoming call is rejected due to non-notification of the caller's phone number, the destination phone number and the special number additional information at that time are increased by simple PB input. And can be registered in the memory circuit 4. As a result, if the call originates from any IP telephone terminal (or telephone) connected to the IP telephone compatible device 10, the specific number is used if the call is made to the destination telephone number registered in the memory circuit 4. “186” is added, and call rejection due to non-notification of the caller telephone number can be avoided.

  In addition, this invention is not limited to the said Example, A various change is possible within the scope of the present invention. For example, in the above embodiment, a voice message for prompting PB input is sent from the voice playback circuit 5, but it may be displayed on a display such as an IP telephone terminal or an LCD panel of a telephone. Further, an input unit may be provided in the IP telephone compatible device 10 and input may be performed from the input unit.

1 is a block diagram of an IP telephone compatible apparatus 10 according to an embodiment of the present invention. It is a SIP sequence diagram for explaining the procedure from the origination of the IP telephone terminal to the end of the operation due to call rejection. 6 is a flowchart for explaining an operation of determining which of normal processing, disconnection processing, and setting processing should be executed in IP telephone compatible device 10; 6 is a flowchart for explaining an operation of a setting process in IP telephone compatible device 10; FIG. 3 is a diagram showing a storage state in the memory circuit 4 of the IP telephone compatible device 10. It is a sequence diagram for explaining the procedure from when a call is established after adding a specific number in response to a call request from an IP telephone terminal. 4 is a flowchart for explaining an operation of a call origination process in IP telephone compatible device 10; 4 is a flowchart for explaining a processing operation for a memory circuit after a call process in IP telephone compatible device 10;

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control circuit 2 Line control circuit 3 SIP control circuit 4 Memory circuit 5 Voice reproduction circuit 6 DTMF transmission / reception circuit 7 Timer 8 Analog control circuit 9 IP telephone terminal control circuit 10 IP telephone corresponding apparatus

Claims (6)

In an IP telephone compatible device that can connect a plurality of telephones and transfers a reception session start request transmitted from any of the plurality of telephones as a transfer session start request to the network side.
Storage means for storing a registered telephone number;
Determining means for determining whether or not a registered telephone number that matches the destination telephone number included in the reception session start request is stored in the storage means;
Transfer means for adding a specific number to the destination telephone number and transferring it to the network side in the transfer session start request when a registered telephone number matching the destination telephone number is stored in the storage means When,
An IP telephone compatible device comprising: In the IP telephone compatible device according to claim 1,
In response to the transfer session start request, detection means for detecting that there is an incoming call rejection due to non-notification of a caller telephone number from the network side;
An instruction input as to whether or not to store the destination telephone number included in the reception session start request as a new registered telephone number in the storage means when an incoming call rejection due to non-notification of the caller telephone number is detected Prompting means to encourage,
Storage control means for storing the destination telephone number in the storage means as the new registered telephone number in response to the instruction input;
An IP telephone compatible device, further comprising: In the IP telephone-compatible device according to claim 1 or 2,
The registered telephone number is stored in the storage means in association with special number additional information indicating either “always add a specific number” or “add a specific number only once”. Telephone compatible device. In the IP telephone-compatible device according to claim 2,
When the instruction input stores the destination telephone number as a new registered telephone number, the instruction input is associated with special number additional information representing either “always add a specific number” or “add a specific number only once”. An IP telephone compatible device, characterized in that it is instructed or the destination telephone number is not stored as a new registered telephone number. In the IP telephone compatible device according to claim 4,
A specific number is added to the destination telephone number that matches the registered telephone number associated with the special number additional information indicating “add a specific number only once” and transferred to the network side in the transfer session start request. Thereafter, the storage control unit deletes the registered telephone number and the special number additional information associated with the registered telephone number from the storage unit. In the IP telephone compatible device according to any one of claims 1 to 5,
The IP telephone compatible device, wherein the reception session start request is an INVITE message based on a SIP protocol or a dial tone.

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