KR20050009030A - Method to transmit and receive both audio and fax using media server based on ip network - Google Patents

Abstract

PURPOSE: A method is provided to receive a voice and a fax simultaneously and broadcast a mail using an IP(Information Provider)-based media server by converting the voice and a fax document to a multimedia document and then broadcasting it to a mail address. CONSTITUTION: An IP-based media server records a sender's voice inputted via an IP terminal using a G.723 encoding technique(S310). The media server receives a fax document inputted via the IP terminal of the sender by way of a T.38 protocol procedure(S320). The media server converts the recorded voice and the received fax document to an MIME(Multipurpose Internet Mail Extension) type(S330). The media server transmits the voice and the fax document with the MIME type to a mail address set in advance, using an SMTP(Simple Mail Transfer Protocol)(S340).

Description

Receive simultaneous voice / fax and mail broadcasting using IP based media server {METHOD TO TRANSMIT AND RECEIVE BOTH AUDIO AND FAX USING MEDIA SERVER BASED ON IP NETWORK}

The present invention relates to a simultaneous voice / fax reception and mail broadcast transmission method. In particular, an IP-based media server converts a sender's voice and a fax document to be transmitted into a multimedia document type and broadcasts it to an address of a mail receiver. It is about a method.

In general, a PSTN-based fax-to-mail service receives a sender's fax document through a fax server and transmits the received fax document to a mail address mapped to a telephone number called by the caller.

For example, when a caller calls a designated telephone number (for example, 0050-889-4294), a fax document requested by the sender is sent to an e-mail address (for example, aaaa@dacom.net) registered at this number.

At this time, the mail receiver can call the fax server from the outside to check the arrival of the fax mail arrived at his or her mail account, but there is a problem in which the fax mail is not known.

Accordingly, the present invention has been made to solve the above problems, by using the IP-based media server to receive and convert the sender's voice and the requested fax document, and to send the mail to the recipient's mail address An object of the present invention is to provide a voice / fax simultaneous reception and mail broadcasting transmission method using an IP-based media server.

In order to achieve the above object, a voice / fax simultaneous reception and mail broadcasting transmission method using an IP-based media server according to the present invention is provided. Recording using the G.723 encoding scheme; Receiving, by the media server, a fax document input through the sender's IP terminal through a T.38 protocol procedure; The media server converting the recorded voice and the received fax document into MIME format; And transmitting the converted MIME type voice and fax document to a predetermined recipient's mail address using the SMTP protocol.

At this time, the mail receiver can access the media server through the IP terminal, go through a separate authentication procedure, and access the mail server to check the mail that has arrived to him using the IMAP protocol.

1 is a network configuration for practicing the present invention,

2 is a block diagram of a preferred media server for practicing the present invention;

3 is a flowchart of simultaneous voice / fax reception and mail transmission according to the present invention.

* Explanation of symbols for main parts of the drawings

100: caller IP terminal 110: IP hub

120: IP network 130: provider network

140,200: Media Server 150: Mail Server

210: IP call processing unit 220: voice recording / storage processing unit

230: fax media processing unit 240: voice / fax format conversion processing unit

250: subscriber authentication processing unit 260: mail transmission and reception processing unit

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

1 is a diagram illustrating a network for implementing the present invention, which includes an IP terminal 100 of a sender, a media server 140, a mail server 150, and the like. The caller's IP terminal 100 is connected to the operator's network 130 having a plurality of routers and switches via the IP network 120 through the IP hub 110, and the media server 140 and the mail server ( 150 is connected.

The caller can call the media server 140 using his IP terminal 100 to record his / her voice and send the fax document. Then, the media server 140 converts the recorded voice of the caller and the received fax document into a MIME (Multipurpose Internet Mail Extension) form and transmits it to the mail server 150.

MIME is a multipurpose Internet mail extension, which is a definition of a multimedia document type for exchanging mail through an Internet network (IP network) so that mail senders and receivers can send and receive mails smoothly.

2 is a block diagram of a preferred media server for implementing the present invention, which includes an IP call processing unit 210, a voice recording / storing processing unit 220, a fax media processing unit 230, a voice / fax format conversion processing unit 240, Subscriber authentication processing unit 250, and mail transmission and reception processing unit 260.

The IP call processing unit 210 is responsible for call connection with the caller's IP terminal through SIP / MGCP-based call processing, and performs media processing such as voice recording and facsimile recognition / transmission.

When the call connection is made through the IP call processing unit 210, the voice recording / storing unit 220 guides the voice caller to inform the caller of who the caller is based on RTP and stores the voice for a predetermined time. do.

The fax media processing unit 230 receives and stores the fax document requested from the sender. The voice / fax format conversion processor 240 changes the compression method of the recorded and stored voice and converts the image of the fax document. That is, the voice and fax documents are converted into MIME type, which is a multimedia document type.

The mail transmission / reception processing unit 260 converts the MIME type voice and fax document converted by the voice / fax format conversion processing unit 240 to the recipient's mail address using the Simple Mail Transfer Protocol (SMTP) protocol. send.

The subscriber authentication processor 250 processes the subscriber's authentication when the subscriber (mail recipient) calls the media server to check the mail stored in his or her mailbox (mail address).

3 is a flow chart of simultaneous voice / fax reception and mail transmission according to the present invention, wherein a voice capable of notifying a caller's identity to a call sent by a caller through an IP terminal using an IP-based media server is shown in FIG. And converts the fax requested to be sent and broadcasts it as an attachment to the recipient's mail address.

Referring to the figure, the IP-based media server requests voice recording from a caller connected to the call and stores the voice of the caller, which is input through the IP terminal, using the G.723 encoding method (S310).

G.723 is one of the voice coding methods used on the Internet and can be divided into various types according to the compression method and the compression rate. G.723 has a voice compression rate of 5.3kbps / 6.3kbps and has been set as the standard for H.323-based Internet telephony communication.

The media server receives the fax document input through the sender's IP terminal through the T.38 protocol procedure (S320). T.38 is a standard for transport session procedure related to Internet-based real-time fax transmission and reception.

Subsequently, the media server converts the recorded voice and the received fax document into a MIME type (Multiparty / Mixed method), and sets the converted MIME type voice and fax document through a mail server using the SMTP protocol. The mail is sent to the recipient's mail address (S330, S340).

Meanwhile, the mail receiver can check the received fax mail by using the IMAP (Internet Messaging Access Protocol) protocol, which is an Internet message access protocol by accessing the mail server after the authentication process by dialing the media server.

As described above, voice / fax simultaneous reception and mail broadcast transmission method using an IP-based media server can receive and store voice and fax documents at the same time and transmit them in a single mail form. You can check the caller by listening to the voice and make a call from outside to confirm the arrival of the received fax document.

On the other hand, the present invention is not limited to the above-described embodiments and can be variously modified and implemented by those skilled in the art without departing from the technical spirit of the present invention, a voice and fax document using a single IP-based technology It can be used or applied variously in the field of sending by mail.

Claims (2)

The IP-based media server records the caller's voice input through the caller's IP terminal using the G.723 encoding method; Receiving, by the media server, a fax document input through the sender's IP terminal through a T.38 protocol procedure; The media server converting the recorded voice and the received fax document into MIME format; And The media server simultaneously receives the voice / fax using an IP-based media server, comprising transmitting the converted MIME type voice and fax document to a predetermined recipient's mail address using the SMTP protocol. And mail broadcast transmission method. According to claim 1, The transmission method, Receiving simultaneous voice / fax using IP-based media server, characterized in that the receiver connects to the media server with IP terminal and authenticates, and then checks the mail sent to his / her mail address using IMAP protocol. How to send a mail broadcast.