JP2013207430A - Telephone terminal and electronic mail display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of improving convenience when sharing electronic mail contents exchanged with an opposite telephone communication part in the past.SOLUTION: Between IP telephone terminals 1-1, 1-2 having an established communication path, one IP telephone terminal 1-1, 1-2 on which an electronic mail is being displayed transmits a mail display request accommodating the designation of the electronic mail identification information to the other IP telephone terminal 1-2, 1-1. On receipt of the request, the other IP telephone terminal 1-2, 1-1 retrieves an electronic mail associated with the identification information designated in the mail display request received from the one IP telephone terminal 1-1, 1-2, from among preserved electronic mails that were transmitted and received in the past, and displays the retrieved mail.

Description

  The present invention relates to a telephone terminal having an electronic mail function, and more particularly to an electronic mail display technique in the telephone terminal.

  Patent Document 1 discloses an e-mail system that can reduce the user's effort and improve the man-machine interface by automatically playing back an e-mail attached file.

  In this e-mail system, the sending mail terminal sends control information for automatically playing back the attached file to the e-mail attached with this attached file, and the receiving e-mail terminal receives the received e-mail. Are automatically reproduced based on the control information added to the e-mail.

Japanese Patent Laid-Open No. 2001-147871

  By the way, there are cases where it is desired to confirm and inquire about the contents of e-mails received in the past by telephone. In such a case, you usually contact the other party by phone with the subject of the email you want to confirm and inquire about, the date and time of transmission, etc., and you will be asked to find the relevant email from among the emails sent to you. There is a need. For this reason, the work burden of the other party is large. Note that it is possible to automatically reproduce the mail text of an e-mail to be confirmed and inquired by using the technique described in Patent Document 1 on the other end of the call. However, in this case, it is necessary to create an e-mail with the mail body of the e-mail to be confirmed and inquired as an attached file and send it to the other party, which is a heavy work load.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a technique capable of improving convenience when sharing the contents of e-mails exchanged in the past with a telephone call partner. It is in.

  In order to solve the above problems, the present invention displays the same e-mail content between telephone terminals having an e-mail function. When a communication path is established between the telephone terminals, one telephone terminal that is displaying the contents of the e-mail sends a mail display request with specification of the identification information of the e-mail to the sender of the e-mail or An e-mail transmitted to the other telephone terminal that is the transmission destination and the other telephone terminal associated with the identification information specified in the mail display request received from the one telephone terminal is sent to Search and display from inside.

For example, the present invention is a telephone terminal having an electronic mail function,
In accordance with an operator's mail display instruction, identification information extraction means for extracting identification information of the email from the displayed email;
A mail display requesting means for sending a mail display request with designation of the identification information of the e-mail extracted by the identification information extracting means, to a partner terminal during a call;
Mail storage means for storing e-mails sent and received in the past;
When the mail display request is received from the counterpart terminal, a mail search means for searching for an email with the identification information specified in the mail display request from the email storage means;
And a mail display means for displaying the electronic mail when the electronic mail is searched by the mail search means.

  In the present invention, when a call is made while displaying the contents of an e-mail on the telephone terminal, the operator displays the same e-mail contents as the e-mail on the telephone terminal of the other party with a simple operation. be able to. Therefore, it is possible to improve convenience when sharing the contents of e-mails exchanged in the past with the telephone call partner.

FIG. 1A is a sequence diagram for explaining an operation flow from the non-call state to displaying the same electronic mail content between IP telephone terminals 1 according to an embodiment of the present invention. FIG. 1B is a sequence diagram for explaining the flow of operations until the same electronic mail content is displayed between IP telephone terminals 1 in a call state according to an embodiment of the present invention. FIG. 2 is a schematic functional configuration diagram of the IP telephone terminal 1. FIG. 3 is a flowchart for explaining the operation for the IP telephone terminal 1 to share the information of the electronic mail with the other party.

  An embodiment of the present invention will be described below.

  IP telephone terminals 1-1 and 1-2 (hereinafter also simply referred to as IP telephone terminal 1) according to the present embodiment have an e-mail function, and the operator of one IP telephone terminal 1 can easily By the operation, the contents of the same e-mail are displayed during a call to share the e-mail information.

  FIG. 1 shows a sequence for explaining the operation between IP telephone terminals 1-1 and 1-2 according to the present embodiment, and FIG. FIG. 1B is a sequence diagram for explaining the flow of operations until the same e-mail content is displayed between 1 and 1-2, and FIG. FIG. 7 is a sequence diagram for explaining the flow of operations until the same electronic mail content is displayed.

  First, the flow of operations from the non-call state to the display of the same electronic mail content between the IP telephone terminals 1-1 and 1-2 will be described with reference to FIG.

  As shown in the figure, when the IP phone terminals 1-1 and 1-2 are not in a call state, the contents of the e-mail (included in the e-mail such as the header and the mail text) are displayed on the display of the IP phone terminal 1-2 Information) is displayed (S100). When receiving an e-mail address selection operation described in the displayed e-mail from the operator (S101), the IP telephone terminal 1-2 receives a plurality of telephone numbers stored in association with the e-mail address. The telephone number corresponding to the selected e-mail address is searched for (S102). Then, a connection request message with the telephone number as the transmission destination number is transmitted to the IP network 2. This connection request message is transmitted via the IP network 2 to the IP telephone terminal 1-1 to which this telephone number is assigned (S103).

  Next, when the IP telephone terminal 1-1 receives a response operation from the operator in response to the connection request message received from the IP telephone terminal 1-2 (S104), it returns a response message (S105). Thereby, a communication path is established between the IP telephone terminals 1-1 and 1-2 via the IP network 2 (S106).

  Next, when confirming that the communication path has been established, the IP telephone terminal 1-2 extracts identification information from the displayed electronic mail (S107). Here, a message ID (Message-ID) described in the header of the e-mail is extracted as e-mail identification information. Then, the IP telephone terminal 1-2 generates a mail display request accompanied with the designation of the extracted identification information, converts the mail display request into a DTMF (Dual-Tone Multi-Frequency) signal, and transmits the IP via the communication path. It transmits to the telephone terminal 1-1 (S108).

  When the IP phone terminal 1-1 receives a mail display request from the IP phone terminal 1-2 via the communication path, the IP phone terminal 1-1 stored in the IP phone terminal 1-1 has transmitted and received in the past. From among the e-mails, an e-mail to which the identification information designated by the mail display request is given is searched (S109). Then, the contents of the searched e-mail are displayed (S110). When the IP telephone terminal 1-1 searches for an e-mail to which the identification information specified in the e-mail display request is given, the attribute information (message) included in the e-mail header is displayed prior to displaying the contents of the e-mail. ID, transmission destination, transmission source, subject, transmission date / time, etc.) may be displayed, and display permission may be requested from the operator of the IP telephone terminal 1-1. As described above, the contents of the same e-mail are displayed between the IP phone terminals 1-1 and 1-2 during a call, and common e-mail information is shared between the operators of both IP phone terminals during the call. The

  Thereafter, when the call path between the IP phone terminals 1-1 and 1-2 is disconnected by the call termination operation of the operator of the IP phone terminal 1-1 or the operator of the IP phone terminal 1-2 (S111), The IP telephone terminals 1-1 and 1-2 end the display of the e-mail (S112, S113).

  Next, an operation flow for displaying the same electronic mail content between the IP telephone terminals 1-1 and 1-2 in a call state will be described with reference to FIG.

  As shown in the figure, when a call path is established between the IP phone terminals 1-1 and 1-2 via the IP network 2 and the IP phone terminals 1-1 and 1-2 are in a call state (S120), It is assumed that IP telephone terminal 1-1 receives an operation for selecting an e-mail to be displayed from the operator (S121). Receiving this, the IP telephone terminal 1-1 displays the content of the selected electronic mail on the display (S122).

  Next, when the IP telephone terminal 1-1 receives an e-mail address selection operation described in the displayed e-mail from the operator (S123), a plurality of IP telephone terminals 1-1 stored in association with the e-mail addresses are stored. The telephone number corresponding to the selected electronic mail address is searched from the telephone numbers (S124). Then, if it is confirmed that the retrieved telephone number matches the telephone number of the IP telephone terminal 1-2 during a call (S125), identification information is extracted from the displayed electronic mail (S126). Then, the IP telephone terminal 1-1 generates a mail display request accompanied with designation of the extracted identification information, converts this mail display request into a DTMF signal, and transmits it to the IP telephone terminal 1-2 via the communication path. (S127).

  When the IP phone terminal 1-2 receives a mail display request from the IP phone terminal 1-1 via the communication path, the IP phone terminal 1-2 stored in the IP phone terminal 1-2 has transmitted and received in the past. The electronic mail to which the identification information designated by the mail display request is given is searched from the electronic mail (S128). Then, the contents of the retrieved e-mail are displayed on the display (S129). When the IP telephone terminal 1-1 searches for an e-mail to which the identification information specified in the e-mail display request is given, the attribute information included in the e-mail header is displayed prior to displaying the contents of the e-mail. Then, the display permission may be requested from the operator of the IP telephone terminal 1-2. As described above, the contents of the same e-mail are displayed between the IP phone terminals 1-1 and 1-2 during a call, and common e-mail information is shared between the operators of both IP phone terminals during the call. The

  Thereafter, when the call path between the IP phone terminals 1-1 and 1-2 is disconnected by the call termination operation of the operator of the IP phone terminal 1-1 or the operator of the IP phone terminal 1-2 (S130), The IP phone terminals 1-1 and 1-2 end the display of the e-mail (S131, S132).

  Next, details of the IP telephone terminal 1 will be described.

  FIG. 2 is a schematic functional configuration diagram of the IP telephone terminal 1.

  As shown in the figure, the IP telephone terminal 1 includes an IP network interface unit 101, a communication control unit 102, a man-machine interface unit 103, an IP phone processing unit 104, a mail processing unit 105, a mail storage unit 106, Address information storage unit 107, mail display instruction receiving unit 108, number search unit 109, automatic call control unit 110, identification information extraction unit 111, mail display request transmission / reception unit 112, mail search unit 113, mail A retransmission request transmission / reception unit 114.

  The IP network interface unit 101 is an interface for connecting to the IP network 2.

  The communication control unit 102 controls communication with other IP telephone terminals 1 via the IP network 2.

  The man-machine interface unit 103 is an interface for a user to perform operations for various functions including telephone and e-mail. Although not shown, an operation unit such as a handset, a dial key, and a display such as an LCD and an LED A part.

  The IP telephone processing unit 104 performs processing necessary for operating as an IP telephone terminal. Specifically, the call path is established / released by exchanging a call control message with the IP telephone terminal 1 as a call partner via the IP network 2 in accordance with a call control protocol such as SIP (Session Initiation Protocol). Further, according to a transmission protocol such as RTP (Real-time Transport Protocol), a voice signal inputted by the user through the man-machine interface unit 103 is encoded into call data, and the call data is transmitted to the other party via the call path. In addition to being transmitted to the IP telephone terminal 1, call data is received from the other party's IP telephone terminal 1 via the call path, and the call data is decoded into an audio signal and output from the man-machine interface unit 103 as audio.

  The mail processing unit 105 performs processing necessary as an e-mail client. Specifically, an e-mail is transmitted to the IP telephone terminal 1 of the other party via the IP network 2 according to a mail transfer protocol such as SMTP (Simple Mail Transfer Protocol). In addition, an electronic mail is received from the IP telephone terminal 1 of the other party via the IP network 2 according to a mail transfer protocol such as POP3 (Post Office Protocol Version 3). Also, processing such as viewing, creating, and saving of e-mail is performed in accordance with an instruction from the operator.

  The e-mail sent and received in the past is stored in the e-mail storage unit 106.

  In the address information storage unit 107, for each IP telephone terminal 1 that is a call partner, a telephone number and an e-mail address assigned to the IP telephone terminal 1 are stored in association with each other.

  The mail display instruction accepting unit 108 receives an e-mail display instruction that is an instruction to display the e-mail being displayed on the IP phone terminal 1 on the other party's IP phone terminal 1 from the operator via the man-machine interface unit 103. Accept. In the present embodiment, when an operation for selecting a transmission destination or a transmission source e-mail address described in an e-mail displayed on the man-machine interface unit 103 is performed by the operator, an e-mail display instruction is issued from the operator. It is judged that it was accepted.

  The number search unit 109 refers to the address information storage unit 107 and searches for the telephone number associated with the e-mail address selected when the mail display instruction receiving unit 108 receives the mail display instruction. Then, referring to the IP telephone processing unit 104, if the call path is not currently established (non-call state), the retrieved telephone number is passed to the automatic call control unit 110, and then the call path is established. If so, the identification information extraction unit 111 is instructed to extract identification information. On the other hand, if the communication path is currently established (calling state), it is determined whether or not the retrieved telephone number matches the telephone number of the IP telephone terminal 1 of the other party. The identification information extraction unit 111 is instructed to extract identification information.

  The automatic call control unit 110 controls the IP telephone processing unit 104 to make a call to the telephone number received from the number search unit 109.

  The identification information extraction unit 111 acquires an electronic mail being displayed on the man-machine interface unit 103 from the mail processing unit 105 and extracts identification information from the electronic mail. In the present embodiment, the message ID described in the header of the e-mail is extracted as identification information.

  The mail display request transmission / reception unit 112 generates a mail display request accompanied with designation of the identification information of the electronic mail extracted by the identification information extraction unit 111, and converts this into a DTMF signal. Then, the IP telephone processing unit 104 is controlled, and the mail display request converted into the DTMF signal is transmitted to the other party's IP telephone terminal 1 through the established communication path. Further, the mail display request transmission / reception unit 112 restores a DTMF signal received from the IP telephone terminal 1 of the other party of the call through the established call path to a mail display request, and is designated by the restored mail display request. The identification information of the electronic mail is passed to the mail search unit 113.

  The mail search unit 113 searches the mail storage unit 106 for an email specified by the identification information received from the mail display request transmission / reception unit 112. Then, the mail processing unit 105 is controlled to display the contents of the searched e-mail on the man-machine interface unit 103. Here, when the email specified by the identification information received from the mail display request transmission / reception unit 112 is not stored in the mail storage unit 106, the mail search unit 113 instructs the mail retransmission request transmission / reception unit 114 to send a mail retransmission request. To do.

  The mail resending request transmission / reception unit 114 generates a mail resending request accompanied with designation of the e-mail address of the own IP telephone terminal 1 according to the instruction of the mail resending request received from the mail searching unit 113, and converts this to a DTMF signal. Then, the IP telephone processing unit 104 is controlled, and the mail retransmission request converted into the DTMF signal is transmitted to the IP telephone terminal 1 of the other party via the established communication path. Further, the mail retransmission request transmission / reception unit 114 restores the DTMF signal received from the other party's IP telephone terminal 1 to the mail retransmission request via the established communication path. Then, the mail processing unit 105 is controlled, and the electronic mail being displayed on the man-machine interface unit 103 is transmitted to the IP telephone terminal 1 of the call partner specified by the electronic mail address specified in the mail retransmission request.

  FIG. 3 is a flowchart for explaining the operation for the IP telephone terminal 1 to share the information of the electronic mail with the other party. In this flow, the power of the IP telephone terminal 1 is turned on and the IP telephone terminal 1 displays an e-mail on the display unit of the man-machine interface unit 103 by the user's operation, or the user operates the man-machine interface unit 103. Is started from a state in which a call is being made with the other party (S200, S230).

  When an e-mail is displayed on the man-machine interface unit 103 (YES in S200), when the operator selects an e-mail address described in the displayed e-mail, the e-mail display instruction receiving unit 108 This is accepted as an email display instruction by the operator (YES in S201). Then, the selected e-mail address is notified to the number search unit 109.

  Receiving this, the number search unit 109 determines whether or not a call path is established by the IP phone processing unit 104 and the call is in progress (S202). If the call is not in progress (NO in S202), the process proceeds to S203. If the call is in progress (YES in S202), the process proceeds to S220.

  In step S <b> 203, the number search unit 109 refers to the address information storage unit 107 and searches for a telephone number associated with the e-mail address received from the mail display instruction reception unit 108. Then, this telephone number is passed to the automatic call control unit 110. In response to this, the automatic call control unit 110 controls the IP phone processing unit 104 to make a call to this phone number and establish a call path with the other party's IP phone terminal 1 to which this phone number is assigned. Establish (S204).

  Then, the number search unit 109 instructs the identification information extraction unit 111 to extract the identification information of the email. In response to this, the identification information extraction unit 111 acquires the electronic mail being displayed on the man-machine interface unit 103 from the mail processing unit 105, and extracts the message ID from the header of the electronic mail (S205). Then, this message ID is passed to the mail display request transmission / reception unit 112 as e-mail identification information.

  In response to this, the mail display request transmission / reception unit 112 generates a mail display request accompanied with the designation of the identification information, and converts it into a DTMF signal. Then, the IP telephone processing unit 104 is controlled, and the mail display request converted into the DTMF signal is transmitted to the IP telephone terminal 1 of the other party via the established communication path (S206).

  After that, the mail retransmission request transmission / reception unit 114 controls the mail processing unit 105 when receiving a mail retransmission request DTMF signal from the IP telephone terminal 1 of the other party of the call through the established communication path (YES in S207). Then, the electronic mail being displayed on the man-machine interface unit 103 is transmitted to the IP telephone terminal 1 of the call partner specified by the electronic mail address specified in the mail retransmission request (S208).

  In addition, when the call path is disconnected by the IP telephone processing unit 104 and the call is terminated (YES in S209), the mail processing unit 105 closes the e-mail displayed on the man-machine interface unit 103, and stores the e-mail. The content display is terminated (S210). Then, the process returns to S200.

  On the other hand, in S <b> 220, the number search unit 109 refers to the address information storage unit 107 and searches for a telephone number associated with the e-mail address received from the mail display instruction reception unit 108. Then, the telephone number of the other party's IP telephone terminal 1 is obtained from the IP telephone processing unit 104, and it is determined whether or not this telephone number matches the retrieved telephone number (S221).

  If the two do not match (NO in S221), the number search unit 109 performs predetermined error processing such as displaying an error message on the man-machine interface unit 103, and then returns to S200.

  On the other hand, when the two match (YES in S221), the number search unit 109 instructs the identification information extraction unit 111 to extract the identification information of the e-mail. In response to this, the identification information extraction unit 111 acquires an email being displayed on the man-machine interface unit 103 from the mail processing unit 105, and extracts a message ID from the header of the email (S222). Then, this message ID is passed to the mail display request transmission / reception unit 112 as e-mail identification information.

  In response to this, the mail display request transmission / reception unit 112 generates a mail display request accompanied with the designation of the identification information, and converts it into a DTMF signal. Then, the IP telephone processing unit 104 is controlled, and the mail display request converted into the DTMF signal is transmitted to the other party's IP telephone terminal 1 through the established communication path (S223).

  After that, if the mail retransmission request transmission / reception unit 114 receives a DTMF signal of the mail retransmission request from the IP telephone terminal 1 of the other party of communication via the established communication path (YES in S224), it controls the mail processing unit 105. Then, the electronic mail being displayed on the man-machine interface unit 103 is transmitted to the IP telephone terminal 1 of the call partner specified by the electronic mail address specified in the mail retransmission request (S225).

  In addition, when the call path is disconnected by the IP telephone processing unit 104 and the call is terminated (YES in S226), the mail processing unit 105 closes the e-mail displayed on the man-machine interface unit 103, and stores the e-mail. The content display is terminated (S210). Then, the process returns to S200.

  On the other hand, the mail display request transmission / reception unit 112 is in a state in which no e-mail is displayed on the man-machine interface unit 103 (NO in S200), and a call path is established by the IP phone processing unit 104 and a call is in progress (YES in S230), when a DTMF signal for a mail display request is received from the other party's IP telephone terminal 1 via this communication path (YES in S231), the identification information of the e-mail specified in this mail display request To the mail search unit 113.

  In response to this, the mail search unit 113 refers to the mail storage unit 106 and searches for an email specified by the identification information received from the mail display request transmission / reception unit 112 (S232). If the corresponding e-mail can be searched (YES in S233), the e-mail processing unit 105 is controlled to display the content of the e-mail on the man-machine interface unit 103, for example, after inputting the display permission of the operator. (S234). On the other hand, if the corresponding electronic mail is not stored in the mail storage unit 106 (NO in S233), the identification information received from the mail display request transmission / reception unit 112 is passed to the mail retransmission request transmission / reception unit 114, and a mail retransmission request is received. Instruct.

  In response to this, the mail resending request transmission / reception unit 114 generates a mail resending request accompanied with the designation of the e-mail address of the own IP telephone terminal 1 and the identification information received from the mail searching unit 113, and this is sent to the DTMF. Convert to signal. Then, the IP telephone processing unit 104 is controlled, and the mail retransmission request converted into the DTMF signal is transmitted to the IP telephone terminal 1 as the other party of communication via the established communication path (S235). Thereafter, the mail processing unit 105 receives the e-mail designated by the mail display request, and displays the content of the e-mail on the man-machine interface unit 103 after, for example, inputting the display permission of the operator (S236). .

  In addition, when the call path is disconnected by the IP telephone processing unit 104 and the call is ended (YES in S237), the mail processing unit 105 closes the e-mail displayed on the man-machine interface unit 103, and stores the e-mail. The content display is terminated (S210). Then, the process returns to S200.

  The embodiment of the present invention has been described above.

  In the present embodiment, one IP telephone terminal 1 that is displaying an electronic mail between the IP telephone terminals 1 for which a communication path has been established makes a mail display request accompanied with designation of the identification information of the electronic mail. The e-mail is transmitted to the other IP telephone terminal 1 that is the transmission source or destination of the e-mail, and the other IP telephone terminal 1 is associated with the identification information specified in the mail display request received from the one IP telephone terminal 1 Searched e-mails are displayed from e-mails sent and received in the past. For this reason, when the operator is making a call while displaying an e-mail on the IP phone terminal 1, the operator issues a mail display instruction by a simple operation such as an e-mail address selection operation described in the displayed e-mail. By inputting, the content of the same electronic mail can be displayed on the IP telephone terminal 1 of the other party. Therefore, it is possible to improve the convenience when sharing the contents of e-mails exchanged in the past with the telephone call partner.

  Further, in the present embodiment, when the IP telephone terminal 1 performs an operation for selecting an e-mail address described in the displayed e-mail in a non-call state, the IP telephone terminal 1 is associated with the e-mail address. A telephone number stored in advance is searched, and an automatic call is made to the searched telephone number. If a communication path is established with the IP telephone terminal 1 specified by this telephone number, a mail display request accompanied with designation of identification information of the electronic mail being displayed is sent to the IP telephone terminal 1 of the other party. Send. For this reason, a communication path is established with the IP telephone terminal 1 to which the electronic mail address is assigned by a simple operation of selecting the electronic mail address of the electronic mail being displayed, and the IP telephone terminal 1 The contents of the electronic mail being displayed on the own IP telephone terminal 1 can be displayed. Therefore, it is possible to further improve the convenience when sharing the contents of e-mails exchanged in the past with the telephone call partner.

  Further, in the present embodiment, when an operation for selecting an e-mail address described in an e-mail being displayed is performed in a call state, the IP telephone terminal 1 is associated with the e-mail address in advance. The stored telephone number is searched, and it is checked whether or not the searched telephone number matches the telephone number of the IP telephone terminal 1 of the call partner. If the two match, a mail display request accompanied with designation of identification information of the electronic mail being displayed is transmitted to the IP telephone terminal 1 of the other party. For this reason, it is possible to prevent a situation in which an erroneous e-mail (e-mail having a destination or a source other than the other party's IP telephone terminal 1) from being displayed is requested to the other party's IP telephone terminal 1. can do.

  Further, in the present embodiment, IP telephone terminal 1 has already deleted and stored the e-mail associated with the identification information specified in the mail display request received from IP telephone terminal 1 of the other party. In this case, a mail retransmission request is transmitted to the other party's IP telephone terminal 1, the electronic mail is received from the other party's IP telephone terminal 1, and the content is displayed. In addition, when receiving a mail resending request from the IP telephone terminal 1 of the other party, the IP telephone terminal 1 transmits the electronic mail being displayed on the IP telephone terminal 1 to the IP telephone terminal 1 of the other party. For this reason, the IP telephone terminal 1 can more reliably display the electronic mail being displayed on the own IP telephone terminal 1 on the IP telephone terminal 1 of the other party.

  Further, in the present embodiment, IP telephone terminal 1 exchanges a mail display request and a mail resending request with IP telephone terminal 1 of the other party through the communication path, so that IP telephone terminal 1 in a call state can quickly In addition, it is possible to exchange the mail display request and the mail retransmission request with certainty.

  In addition, this invention is not limited to said embodiment, Many deformation | transformation are possible within the range of the summary.

  For example, in the above-described embodiment, the IP telephone terminal 1 exchanges a mail display request and a mail retransmission request with the IP telephone terminal 1 of the other party of communication via a communication path. However, the present invention is not limited to this. If each other's IP address can be grasped, a mail display request and a mail re-transmission request may be exchanged without going through the communication path.

  In the above embodiment, the message ID described in the header of the e-mail is used as the e-mail identification information. However, the present invention is not limited to this. The e-mail identification information only needs to be able to uniquely identify the e-mail. For example, the combination of the transmission destination address, the transmission source address, and the transmission date and time described in the header of the e-mail is identified by the e-mail identification information. It may be used as

  In the above embodiment, the functional configuration of the IP telephone terminal 1 shown in FIG. 3 is realized by an integrated logic IC such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array). Alternatively, it may be realized by software by a computer such as a DSP (Digital Signal Processor). Alternatively, in a general-purpose computer such as a PC (Personal Computer) equipped with an auxiliary storage device such as a CPU, memory, HDD, DVD-ROM, and a communication interface such as a NIC (Network Interface Card) and a modem, the CPU executes a predetermined program. It may be realized by loading from an auxiliary storage device onto a memory and executing it.

  In the above embodiment, the case where the present invention is applied to the IP telephone terminal 1 is described as an example, but the present invention is not limited to this. The present invention is widely applicable to various telephone terminals such as mobile phone terminals.

1, 1-1, 1-2: IP phone terminal, 2: IP network, 101: IP network interface unit, 102: communication control unit, 103: man-machine interface unit, 104: IP phone processing unit, 105: mail processing 106: Mail storage unit 107: Address information storage unit 108: Mail display instruction reception unit 109: Number search unit 110: Automatic call control unit 111: Identification information extraction unit 112: Mail display request transmission / reception unit 113: Mail search unit 114: Mail retransmission request transmission / reception unit

Claims (6)

A telephone terminal having an e-mail function,
In accordance with an operator's mail display instruction, identification information extraction means for extracting identification information of the email from the displayed email;
A mail display requesting means for sending a mail display request with designation of the identification information of the e-mail extracted by the identification information extracting means, to a partner terminal during a call;
Mail storage means for storing e-mails sent and received in the past;
When the mail display request is received from the counterpart terminal, a mail search means for searching for an email with the identification information specified in the mail display request from the email storage means;
A telephone terminal comprising: mail display means for displaying the electronic mail when the electronic mail is searched by the mail search means. The telephone terminal according to claim 1,
Address information storage means for storing the correspondence between the e-mail address and the telephone number;
In a non-call state, if an operation for selecting an e-mail address described in the displayed e-mail is performed, a mail display instruction receiving unit that receives the selection operation as the mail display instruction;
Number search means for searching for a telephone number stored in the address information storage means in association with the e-mail address selected when receiving the mail display instruction by the mail display instruction receiving means;
Automatic call processing means for calling the telephone number searched by the number search means,
The identification information extracting means includes
When a communication path is established with the counterpart terminal to which the telephone number searched by the number search means is assigned, the identification information of the electronic mail is extracted from the displayed electronic mail. Phone terminal. The telephone terminal according to claim 1,
Address information storage means for storing the correspondence between the e-mail address and the telephone number;
A mail display instruction accepting means for accepting the selection operation as the mail display instruction if an operation for selecting an email address described in the displayed email is performed in a call state;
Number search means for searching for a telephone number stored in the address information storage means in association with the e-mail address selected when the mail display instruction acceptance means is accepted by the mail display instruction acceptance means. And
The identification information extracting means includes
The telephone terminal characterized in that, when the telephone number searched by the number search means is the telephone number of the other terminal during the call, identification information of the electronic mail is extracted from the electronic mail being displayed. The telephone terminal according to any one of claims 1 to 3,
When the e-mail to which the identification information specified in the e-mail display request is given by the e-mail search unit cannot be searched from the e-mail storage unit, the other party that is the transmission source of the e-mail display request A mail resending request means for sending a mail resending request to the terminal and receiving an email from the counterpart terminal;
When the mail display request is transmitted by the mail display request means, if the mail resending request is received from the counterpart terminal that is the destination of the mail display request, the displayed electronic mail is sent to the counterpart terminal. An email resending means for sending,
The mail display means
The telephone terminal, wherein the electronic mail is displayed when the electronic mail is received from the counterpart terminal by the mail retransmission request means. The telephone terminal according to any one of claims 1 to 4,
The mail display requesting means
The telephone terminal, wherein the mail display request is transmitted to the partner terminal via a communication path established with the partner terminal. An electronic mail display method for displaying the same electronic mail between telephone terminals having an electronic mail function, wherein one of the telephones displaying the electronic mail is displayed when a communication path is established between the telephone terminals. The terminal transmits a mail display request accompanied with designation of identification information of the electronic mail to the other telephone terminal that is the transmission source or the transmission destination of the electronic mail, and the other telephone terminal transmits the one telephone terminal. An e-mail display method comprising: searching for e-mail associated with identification information specified in a received e-mail display request from e-mails transmitted and received in the past and displaying the e-mail.

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