KR20080049289A - Real-time intergration messaging system for providing instant messaging server and electronic mail server and service method thereof - Google Patents

Abstract

A real-time integrated messaging system interlocking between an instant messaging server and an email server, and a service method thereof are provided to increase user convenience by providing a real-time communication service using an IM(Instant Messenger) memo function to a user belonging to the same domain and enabling the user to send a memo to the user belonging to other domains in an email through automatic conversion. An IMNA(IM Notification Agent)(130) requests received presence and state checkup, and informs a receiver that memo information is received. An IMMDA(IM Memo Delivery Agent)(120) determines whether a sender belongs to the same domain when the memo information is received from the sender. The IMMDA converts the memo information into mail information and transfers the mail information to a mail server(200) when the receiver belongs to other domains, and transfers the memo information to the IMNA when the sender belongs to the same domain. An IMBRA(IM Buddy Retrieval Agent)(140) checks whether the email receiver is registered to the mail server by the request of the IMNA. An IMPRA(IM Presence Retrieval Agent)(150) checks whether the mail receiver is in an online or offline state by the request of the IMNA.

Description

REAL-TIME INTERGRATION MESSAGING SYSTEM FOR PROVIDING INSTANT MESSAGING SERVER AND ELECTRONIC MAIL SERVER AND SERVICE METHOD THEREOF}

1 is a diagram illustrating an entire network applying a unified messaging service according to an embodiment of the present invention.

2 is a block diagram of a real-time unified messaging system integrating and providing an instant messaging service and a mail service according to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating a method of transmitting message information in real time to an instant messenger in real time in the unified messaging system of FIG. 2.

FIG. 4 is a flowchart illustrating a method of converting message information sent by an instant messenger to mail information to a user of another domain in real time in the unified messaging system of FIG.

FIG. 5 is a flowchart illustrating a method for receiving mail sent by an external mail client in real time through an instant messenger in the unified messaging system of FIG. 2. FIG.

6 is a flowchart illustrating a method of receiving mail information sent by an external mail client from another domain user in real time in the unified messaging system of FIG. 2.

<Description of Symbols for Main Parts of Drawings>

10: User A 20: User B

30: User C 40: User D

103: integrated system A 104: integrated system B

100: instant messaging server 200: mail server

110: instant messenger agent 120: note delivery unit

130: instant messenger check unit 140,340: presence search unit

150: status check unit 160: short messaging unit

209: mail transmission unit 210: mail transmission unit

220: mail delivery unit 230: mailbox

240: mail search unit 250: mail user agent

241: POP daemon driver 242: IMAP daemon driver

The present invention relates to a real-time unified messaging system and a service method for interworking between an instant messaging server and a mail server. More specifically, an instant messenger user sends message information to an instant domain user via instant messenger, and to another domain user. It is a technology that notifies the receipt of the message in real time and checks the contents of the mail by converting the message information sent from the instant messaging server into the mail information of the external account.

In general, Electronic Mail (hereinafter referred to as Email) and Instant Messaging (hereinafter referred to as IM) services are the two most common forms of communication over the Internet.

The most common form of email is web-based, with a browser-based client, provided by the service provider such as Microsoft. In addition, to access the web email service, a user with an account provides a user ID and password to the user interface rendered by the browser, so that the interface loaded by the browser after the user ID and password is verified for the user account The email service is provided to the user through.

IM services, on the other hand, enable users to send and receive messages almost instantly with other IM service users over a network or a set of networks such as the Internet. This IM service is provided by a service provider and a computer connected to the Internet can access the IM service using a client application.

In order to be provided with an IM service, a user establishes an account by providing account information including a user ID, password, and messenger contact list, and the user must enter the user ID and password at login. Accordingly, verifying the login information with the user's account information allows a particular client to know the user's presence, the messenger contact list and the presence of each contact, and to initiate a conversation by selecting a contact from the messenger contact list displayed in the IM interface. Can be. When a person sends a message during a conversation, the IM system receives the message, locates the recipient's computer, and routes the message to a specific computer.

The conventional IM service uses a Post Office Protocol (POP) daemon or an Internet Message Access Protocol (IMAP) daemon program repeatedly at regular intervals to check if an e-mail is received in a messenger. It is provided by importing the stored e-mail directly or by importing the subject and sender information of the e-mail and informing the user that the e-mail has been received in a messenger form.

However, the conventional method has a hassle to copy or edit the contents in order to send a message sent or received from the instant messenger by e-mail or to transfer the contents sent or received by the instant messenger to the instant messenger.

In addition, there is a problem that each agent program must be installed in order to use the instant messenger and the Internet e-mail system.

Accordingly, an object of the present invention for solving the above-described problem is to provide a real-time communication service using an instant messenger message function to users of the same domain, and to automatically send mail to other domain users without copying the contents of messages sent and received by instant messenger. Can be converted and sent directly to increase the user's convenience.

In order to achieve the above object, a real-time unified messaging system interworking between an instant messaging server and a mail server of the present invention provides an instant messaging service and determines whether a receiver is another domain user when receiving message information from a sender. In the case of other domain users, the message information is converted to mail information and includes an instant messaging server for transmitting to a mail server.

In addition, the real-time unified messaging system interworking between the instant messaging server and the mail server of the present invention provides an instant messaging service, and when receiving the message information from the sender to determine whether the recipient is another domain user, if the other domain user The instant messaging server converts the message information into mail information and transmits it to a mail server, and upon receiving mail information from a mail sender of an external account, it is determined whether the recipient is another domain user. Converts the message into message information and delivers the message to the instant messaging server, and stores the mail information when the recipient is the same domain user, and delivers the mail information upon request of the recipient. It is done.

In addition, the real-time unified messaging service method interoperating between the instant messaging server and the mail server of the present invention is a real-time unified messaging service method for an instant messaging service having a different service domain,

When the instant messaging server receives the message information from the user, after the first process of determining whether the recipient is a different domain user, and if the recipient is the same domain, after checking the presence and status information of the recipient in the instant messaging server, A second process of delivering the message information to the recipient through an instant messenger agent; and a third process of converting the message information into mail information in the instant messaging server and transmitting the message information to the mail server when the recipient is another domain. Characterized in that.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is an overall configuration diagram of a network to which a unified messaging service according to an embodiment of the present invention is applied.

In an embodiment of the present invention, in order to provide a unified messaging service, the user A 10, the user B 20, the user C 30, and the user D 40 are connected to the unified messaging system 300 through an internet network.

The integrated messaging system 300 includes an instant messaging server 100 and a mail server 200. Although FIG. 1 illustrates one integrated messaging system 300, a plurality of integrated messaging systems may be implemented.

Hereinafter, a detailed configuration of a unified messaging system will be described in detail with reference to FIG. 2.

2 is a block diagram of a real-time unified messaging system 300 between an instant messenger and a mail system according to an exemplary embodiment of the present invention.

The real-time unified messaging system 300 of the present invention includes an instant messaging server 100 and a mail server 200.

The instant messaging server 100 is a server for providing an instant messaging service, an instant messenger agent (IMA; 110), a message delivery unit (IMMDA; Instant Messenger Memo Delivery Agent; 120), and an instant messenger checker (IMNA). Instant Messenger Notification Agent (130), presence search unit (IMBRA; Instant Messenger Buddy Retrieval Agent; 140), status check unit (IMPRA; Instant Messenger Presence Retrieval Agent; 150), short messaging unit (SMS; Short Message Service; 160) ), Including

The instant messenger agent (IMA) 110 transmits the message information created by the user to the message delivery unit 120, and when the message reception notification information is received from the instant messenger checker 130, the receiver can confirm that the message has been received in real time. Make sure

The message delivery unit (IMMDA) 120 receives the message information from the instant messenger agent 110 and determines whether the recipient to receive the message information is the same domain user as the sender or a different domain user. Also, the message delivery unit 120 transmits the message information to the instant messenger verification unit 130 when the recipient is the same domain user, converts the message information into the mail information when the recipient is another domain user, and then converts the converted mail information. To the mail transmission unit 210. At this time, the message delivery unit 120 transmits to the mail transmission unit 210 through the Instant Messenger Memo Transfer Protocol (IMMTP) communication protocol.

The instant messenger checker (IMNA) 130 stores the note information received from the note delivery unit 120, and checks the presence searcher 140 and the state searcher for checking the presence information and the status information of the recipient who will receive the note information. Each 150 asks for confirmation. Therefore, the instant messenger checker 130 receives the receiver's presence information and the status information check result from the presence searcher 140 and the status searcher 150, and if the receiver's status information is online, the instant messenger The message reception notification information is transmitted to the messenger agent 110 and the message reception notification information is transmitted to the short messaging unit 160 when the user's status information is offline.

The presence search unit (IMBRA) 140 checks whether the e-mail address requested from the instant messenger checker 130 matches the mail address for the ID of the instant messenger user, and transmits the result to the instant messenger checker 130.

The status checker (IMPRA) 150 checks the online or offline status information of the instant messenger user according to the request of the instant messenger checker 130, and then transfers the result to the instant messenger checker 130.

Short messaging unit (SMS) 160 sends the message received notification information received from the instant messenger confirmation unit 130 via a text message to the user's mobile phone number entered in advance to know in real time that the mail was received even if the user is offline Make sure

Meanwhile, the mail server 200 is a server for providing a mail service, and includes a mail sender (MSA; Mail Send Agent) 209, a mail transfer agent (MTA) 210, and a mail delivery agent (MDA). 220, a mail box 230, a mail retrieval agent (MRA; 240), and a mail user agent (MUA);

The mail transmitting unit (MSA) 209 transmits the mail information to the mail transmitting unit 210 through the Simple Network Management Protocol (SMTP) communication protocol when the user wants to transmit the mail using the ID of the instant messenger.

The mail transmission unit (MTA) 210 delivers the mail information received from the mail transmission unit 300 to the mail delivery unit 220 through a system call, converts the mail information into message information, and supports IMSP (Interactive Mail Support). Protocol) transmits to the message delivery unit 120 through the communication protocol. In addition, the mail transmission unit 210 receives the converted mail information from the message delivery unit 120 through the IMMTP communication protocol and transfers the converted mail information to the mail delivery unit 200.

The mail delivery unit (MDA) 220 delivers and stores the mail information received from the mail transmission unit 210 to the mailbox 230.

The mail box 230 stores mail information received from the mail delivery unit 220 and sends a mail to a mail receiver.

The mail retrieval unit (MRA) 240 includes a POP daemon driver 241 for driving the POP daemon program to access the mailbox 230 from an external mail user agent 250, and an IMAP daemon driver for driving the IMAP daemon program. 241 is provided.

At this time, the mail search unit 440 transmits and receives mail with the mail user agent 250 through the POP communication protocol and IMAP communication protocol. That is, when the user C 30 requests the mail arrived through the mail user agent 250, the user C 30 brings the mail arrived in association with the mailbox 230 through the POP communication protocol.

The mail user agent (MUA) 250 refers to an external client program used by a mail user to receive mail.

Hereinafter, referring to FIG. 3, a method of real-time transmission of message information sent from an instant messenger to a user of the same domain through the integrated messaging system of the present invention will be described in detail.

First, when the user A 10 using the instant messenger writes the message information through the instant messenger agent 110 and delivers the message to the message delivery unit 120 (S101), the message delivery unit 120 uses the recipient address information. It is determined whether the user B 20 as the receiver is the same domain user as the user A 10 as the sender (S102).

As a result of the determination of step S102, if the same domain user, the message delivery unit 120 transmits the message information to the instant messenger confirmation unit 130 (S103).

Accordingly, the instant messenger checker 130 requests the presence searcher 140 to confirm whether a user ID for receiving a message exists (S104), and the presence searcher 140 checks whether the ID exists. (S105) The confirmation result is transmitted to the instant messenger confirmation unit 130 (S106).

At this time, the presence search unit 340 receives the recipient information from the instant messenger confirmation unit 330, searches whether the recipient ID in the form of an e-mail address exists in the instant messenger service user database (not shown) among the recipient information. Check the status. As a result of the existence check, the existence search unit 140 transmits the ID of the corresponding receiver and the mobile communication phone number to the instant messenger verification unit 130 when there exists.

Subsequently, the instant messenger checker 130 requests the state checker 150 to check the status of the user ID when the corresponding user ID exists as a result of the check in step S107 (S107), and thus the status checker 150. The user checks whether the user is logged in or logged off (S108), and transmits the confirmation result to the instant messenger confirmation unit 130 (S109).

Accordingly, the instant messenger confirming unit 130 transmits a mail receiving notification to the counterpart user B's mobile communication terminal via a short message unit 160 in the form of a text message if the user is logged off as a result of checking in step S108, and logs in. If the status is notified that the message has been received to the counterpart user B (20) to check the mail in real time (S110).

When the user B 20 that the new mail is received through the process S110 requests the message information arrived through the instant messenger agent 110 (S111), the instant messenger checker 130 stores the stored message information. Transfer to user B 20 (S112). At this time, the user B 20 is provided with the message transmission and reception via the instant messenger agent (110).

Hereinafter, referring to FIG. 4, when the message information sent from an instant messenger is transmitted to another domain user through the unified messaging system of the present invention, the instant messaging server 100 converts the message information into mail information to the mail server 200. ), A method of transmitting the mail in real time to other domain users will be described.

First, when the user A 10 writes the message information through the instant messenger agent 110 and transmits the message information to the message delivery unit 120 (S201), the message delivery unit 120 is the recipient user C 30 is the user who is the sender. It is determined whether it is the same domain user or another domain user as A (10) (S202).

As a result of the determination in step S202, when the recipient is another domain user, the message delivery unit 120 converts the received message information into mail information (S203) and transfers the converted mail information to the mail transmission unit 210. At this time, the message delivery unit 120 and the mail transmission unit 210 transmits and receives mail information according to the IMMTP communication protocol, and converts the message information to the mail information through the SMTP protocol, the data format used at this time is shown in Table 1 below. .

argument name Explanation necessary Remarks From  Caller Membership Number O kid To  Caller ID (with domain) O receiver CC  Carbon Copy (Reference) BCC  Blind Carbon Copy (bcc) Subject  title Title Body  Skip to content O msg File attach  Attach file (separated by "|" for multiple individuals) attachfilelist

 In Table 1, the remarks column refers to a messenger message format corresponding to the mail format.

Thus, the mail transmission unit 210 transmits and stores the mail information to the mailbox 230 through the mail delivery unit 220 (S204, S205).

Thereafter, upon receiving the mail information request from the user C 30 (S206), the mail box 250 delivers the mail information to the user C 30 (S207). At this time, the user C 30 receives the mail through the mail user agent 250.

3 and 4, the ID @ domain based instant messenger user A 101 executes a message window through the instant messenger agent 110 of the unified messaging system 103 and adds it to the buddy. Selected or entered message recipients (subject, contents, attachments, etc.) from external email addresses of friends who are not added to Buddy and Buddy but not added to Address Book, and not added to Buddy and Address Book. If the message is sent to the message delivery unit 120, the message delivery unit 120 determines whether the recipient is the same domain user, and in the case of the same domain, delivers the message information to the recipient through the instant messaging server 100, and the recipient is in a different domain. In the case of a user, the instant messaging server 100 converts the message information into mail information and transmits the message information to the mail server 200 so that other domains can be used. Allow the recipient of the seal to receive mail information.

Hereinafter, referring to FIG. 5, a method of confirming in real time a message sent by an external mail client in an instant messenger in the integrated messaging system of the present invention will be described in detail.

5, when user D 40 sends a mail to user B 20 through an external account instead of an instant messaging service, user B 20 uses an instant messenger. The case of receiving an e-mail is started.

First, when user D 40 wants to send mail to user B 20, the mail transmitter 209 of the unified messaging system 300 executes a mail sending window, and user D 40 sends a mail window. Enter the email address, subject and content of the recipient, and attach the attachment, etc., and press the send mail button to send the mail.

The mail information transmitted through the mail transmitter 209 is transmitted to the mail transmitter 210 (S301).

Accordingly, the mail transmission unit 210 determines whether the user B 20, which is the recipient, is the same domain user or a different domain user as the sender (S302).

As a result of the determination in step S302, if the user B 20 is the same domain user as the sender, the mail transmission unit 210 converts the received mail information into the message information (S303), and converts the converted message information into the IMSP communication protocol. According to the delivery to the note delivery unit 120 (S304).

In this case, the URL used when the mail transmission unit 210 converts the mail information into the message information and delivers it to the message delivery unit 120 is “http://imdvlp.paran.com:8080/topim/send_mail2msg.do”. The data format used for this is expressed in Table 2 below.

argument name Explanation necessary Remarks kid  Sender ID (including domain) O From name  Dispatcher Name receiver  Receiver id, if there are multiple recipients, the "|" List with delimiter, also include CC or BCC O To, CC, BCC title  Message Title (40byte) Even if there is no title on the user UI, the title is sent in the first 40 bytes of the msg body. O subject msg  Message content O Body msgtype  Note type 'N': Normal message, 'F': Offline file transfer If there is no arg itself, it is treated as a normal message ('N') and mail interworking note is treated as 'F'. O attachtype  Attachment file type arg itself: attach file transfer ‘0’: offline file attachment ‘1’: online file attachment mail linking message ‘0’ attachfilelist  File List "|" for multiple files Category (file name | size information | file name | size information ...) * size information is in bytes and contains only numeric values. Example) Design document.doc | 3214 | Document2.ppt | 123 | Document3.html | 1234 File attach attachlinklist  If there is more than one url link information corresponding to each list in the attachment file, separate them with "|" Example) http: //f.pn.com/dn.x? F = 2 & fn =% 23% 3.doc | http://f.pn.com/dn.x?f=4&fn=%13.doc File download URL channel  Message sending routines (services that send messages ('i': IM sent from IM 'w': Message sent from the web 'r': Various comment notifications '0': Mail interlocked messages   O

At this time, if the mail is converted into a message and processed in XML format, it is expressed as shown in Table 3 below.

 <? xml version = "1.0" encoding = "UTF-8"?> <resource-lists xmlns = "urn: ietf: params: xml: ns: resource-lists" xmlns: re = "urn: ietf: params: xml : ns: resource-lists: paran_ex "xmlns: xsi =" http://www.w3.org/2001/XMLSchema-instance "xsi: schemaLocation =" urn: ietf: params: xml: ns: resource-lists http: //iman.paran.com/XS/rlist.xsd urn: ietf: params: xml: ns: resource-lists: paran_ex http://iman.paran.com/XS/rlist_pr.xsd "> <list name =" SEND_MSG "> <re: result> 0 </ re: result> <re: msgno> Move number </ re: msgno> </ list> </ resource-lists>

In Table 3, each schema is described as Table 4 below.

element / attribute Explanation necessary Remarks <list name>  "SEND_MSG"    O <re: result>  0: Normal processing -8080: Internal processing error (Send message failed)    O <re: msgno>  Note number kept on the server (msgbodyno value inside the message server) O

Accordingly, the message delivery unit 120 stores the message information received from the mail transmission unit 210 (S305), and transfers the message information to the instant messenger confirmation unit 130 (S306).

Thereafter, the instant messenger checker 130 requests the presence searcher 140 to confirm whether a user ID for receiving a message exists (S307), and the presence searcher 140 checks whether the ID exists. In operation S308, the result of the verification is transmitted to the instant messenger verification unit 130 (S309).

At this time, the presence search unit 140 receives the recipient information from the instant messenger confirmation unit 130, and searches for the existence of the recipient ID in the instant messenger service user database (not shown) among the recipient information. Check whether or not. As a result of the existence check, the existence search unit 140 transmits the ID of the corresponding receiver and the mobile communication phone number to the instant messenger verification unit 130 when there exists.

Subsequently, the instant messenger checker 130 requests the status checker 150 to check the status of the user ID when the corresponding user ID exists as a result of the check in step S308 (S310), and thus the status checker 150. The user checks whether the user B 20 is logged in or logged off (S311), and transmits the confirmation result to the instant messenger checker 130 (S312).

Thus, when the instant messenger checker 130 and the instant messenger checker 130 and the user B 20 are logged off, the other user B (in the form of a text message) receives a mail reception notification through a short messaging unit of the unified messaging system 300. 20), and if the user is logged in, notifies the counterpart user B 20 that the mail has been received so that the user can check the mail in real time (S313).

When the user B 20 that the new mail has been received through the process S313 requests the received message information to the message delivery unit 120 through the instant messenger agent 110 (S314), the message delivery unit 120 stores the message. The message information being sent is transmitted to the user B 20 (S315).

Hereinafter, referring to FIG. 6, a method of transmitting mail sent by an external mail client to a user of another domain in real time in the integrated messaging system of the present invention will be described in detail.

6 illustrates a case where user D 40 sends a mail to user C 30 using another domain through an external account, not an instant messaging service.

First, when the user D 40 wants to send a mail to the user C 30, the user D 40 creates a mail and transmits the mail information to the mail transmission unit 210 through the mail transmission unit 209 (S401).

Accordingly, the mail transmission unit 210 determines whether the user C 30 that is the recipient is the same domain user or a different domain user as the user D 40 (S402).

As a result of the determination in step S402, when user C 30 is another domain user, the mail transmission unit 210 delivers the mail information to the mailbox 230 through the mail delivery unit 200 (S403). The mail information is stored at 230 (S404).

Thereafter, when the user C 30 requests the mail information through the mail user agent 250 (S405), the mail information stored in the mailbox 230 is transmitted to the user C 30 (S406).

As described above, the present invention provides a real-time communication service using an instant messenger message function to users of the same domain, and automatically converts the message contents sent and received by an instant messenger to an e-mail message and sends it directly to another domain user. There is an effect of increasing the convenience.

In addition, the present invention has the effect of minimizing the user's hassle can be sent directly to automatically converted to the mail without copying or editing the message sent and received by the instant messenger.

In addition, the preferred embodiment of the present invention for the purpose of illustration, those skilled in the art will be able to various modifications, changes, replacements and additions through the spirit and scope of the appended claims, such modifications and changes are the following claims Should be seen as belonging to.

Claims (13)

It provides an instant messaging service and when receiving the message information from the sender determines whether the recipient is a different domain user, and if the user is another domain user includes an instant messaging server for converting the message information to the mail information sent to a mail server A real-time unified messaging system that interoperates between an instant messaging server and a mail server. The method of claim 1, wherein the instant messaging server, And a real-time unified messaging system interworking between an instant messaging server and a mail server, when the recipient is a user of the same domain, and checking the existence and state of the receiver to notify the receiver in real time that a message has been received. The method of claim 1, Receiving the mail information from the mail sender of the external account, it is determined whether the recipient is another domain user, if the other domain user further comprises a mail server for converting the mail information to the message information and forwarded to the instant messaging server A real-time unified messaging system that interoperates between an instant messaging server and a mail server. The method of claim 2, wherein the mail server, And receiving and storing the converted mail information from the instant messaging server, and delivering the mail information upon request from a user. The method of claim 1 or 2, wherein the instant messaging server, An instant messenger confirming unit for requesting confirmation of the existence and status of the recipient and notifying the recipient of message information; When receiving the message information from the sender, it is determined whether the sender is a different domain user, and if it is another domain user, the message information is converted to mail information and delivered to the mail server, and when the sender is the same domain user, A message delivery unit for transmitting the message information to the instant messenger confirmation unit; A status checking unit for searching whether an ID of the mail receiver is subscribed by a request of the instant messenger checking unit; And And a presence retrieval unit for retrieving whether the mail receiver is currently online or offline at the request of the instant messenger confirmation unit. An instant messaging server that provides an instant messaging service and determines whether the recipient is another domain user when receiving message information from the caller, and converts the message information into mail information and transmits the message information to a mail server when the other domain user is used; And When receiving the mail information from the mail sender of the external account, it is determined whether the recipient is another domain user, and if the other domain user is converted, the mail information is converted into the message information and transmitted to the instant messaging server, and the recipient is the same domain. And a mail server which stores the mail information and delivers the mail information at the request of the recipient, if the user is a user. The method of claim 6, wherein the mail server, A mail transmission unit which receives mail information from an external account, determines whether the mail recipient is another domain user, and converts the mail information into message information and delivers it to the instant messaging server when the mail recipient is another domain user; A mailbox for storing mail information received from the mail transmission unit; And And a mail retrieval unit for delivering the mail information stored in the mailbox to the mail receiver upon receiving a request from the mail receiver. The method of claim 6, wherein the instant messaging server, An instant messenger confirming unit for requesting confirmation of the existence and status of the recipient and notifying the recipient of message information; When receiving the message information from the sender, it is determined whether the sender is a different domain user, and if it is another domain user, the message information is converted to mail information and transmitted to the mail server, and if the sender is the same domain user, the message A note delivery unit for transmitting the information to the instant messenger confirmation unit; A status checking unit for searching whether an ID of the mail receiver is subscribed by a request of the instant messenger checking unit; And And a presence retrieval unit for retrieving whether the mail receiver is currently online or offline at the request of the instant messenger confirmation unit. The method of claim 8, wherein the instant messaging server, When the recipient is offline, real-time integration between the instant messaging server and the mail server further comprises a short messaging unit for notifying that the mail has been received in the form of a short message for the mobile communication telephone number of the recipient information. Messaging system. In the real-time Unified Messaging service method for instant messaging services of different service domains, When the instant messaging server receives the message information from the user, determining whether the receiver is another domain user; A second process of confirming the presence and status information of the receiver in the instant messaging server and transmitting the message information to the receiver through an instant messenger agent when the receiver is in the same domain; And And a third process of converting the message information into mail information and transmitting the message information to a mail server when the receiver is another domain. Way. The method of claim 10, wherein the second process, Step 2-1 of receiving and storing the message information; Step 2-2 of checking the presence and status information of the recipient to receive the message information; And And a third process of notifying that the message information has been received according to the state of the receiver. The method of claim 11, wherein the second 2-3 process comprises: And when the receiver is online, notifying that the mail information has been received through an instant messenger service, and when the receiver is offline, notifying that the mail information has been received in the form of a short message on the mobile communication telephone number of the receiver. A method of real-time Unified Messaging services that interoperate between instant messaging servers and mail servers. The method of claim 10, wherein the third process, Real-time Unified Messaging service interworking between the instant messaging server and the mail server, characterized in that for transmitting the mail information converted by the instant messaging server to the mail server through the Instant Messenger Memo Transfer Protocol (IMMTP) communication protocol.

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