KR100442353B1 - Screen display apparatus and method using extensible markup language in internet protocol phone - Google Patents

Abstract

The present invention relates to a screen output device and method using an XP in the IP phone, in particular, the content and format of the characters output to the display unit of the IP phone using the media gateway control protocol in the Internet network processing using the XL It is aimed at making it possible. To this end, the present invention is a media gateway controller for controlling and generating a media gateway control protocol message containing information on the call status on the network, and the media gateway controller for storing the information of the XML format of the output screen compatible with each IP phone; It is characterized in that it consists of an IP phone to process the message transmitted from the media gateway controller and to decode the information of the XML format included in the message to display on the display. Therefore, the present invention has the effect of consistently outputting or managing call state information in a communication environment in which various types of IP phones coexist.

Description

SCREEN DISPLAY APPARATUS AND METHOD USING EXTENSIBLE MARKUP LANGUAGE IN INTERNET PROTOCOL PHONE}

The present invention relates to a screen output device and method using an XP in the IP phone, in particular, the content and format of the characters output to the display unit of the IP phone using the media gateway control protocol in the Internet network processing using the XL The present invention relates to a screen output device and method using XML in an IP phone.

Extensible Markup Languages (XML) on the Web is a standardized text format designed to deliver structured documents, making the data familiar to users and easy to transmit. In order to show some information to the user, the information content is also required, but the presentation method such as font, size, position, etc. is required.

In XML, each terminal has such an expression grammar and transmits only content, so the amount of transmission data is small.

The communication protocols used in Voice Over IP (VOIP) include H.323, Media Gateway Control Protocol (MGCP), and Session Initiation Protocol (SIP). Among them, the media gateway control protocol is defined as a communication protocol between gateways. Since it is not complicated compared with other protocols, the media gateway control protocol can be developed in a short time, and it is increasing in adoption not only in the gateway but also in the terminal.

In the media gateway control protocol, there is a media gateway controller serving as a call server. This media gateway controller is responsible for managing and handling all calls.

The messages of the Media Gateway Control Protocol have packages defined for each event. For example, a dial tone or a ring tone is defined in a line package, and a DTMF tone is defined in a DTMF package. Thus, depending on the type of application, new packages can be defined and used when using features not defined in existing standards.

Bio IP is a term that refers to IP telephony technology for a series of facilities that deliver voice information using the Internet protocol. In general, this means that voice information is sent in digital form in discrete packets, rather than traditional protocols based on circuits such as PSTN, a public switched telephone network. The main advantage of BIO IP and internet telephony technology is that it integrates telephone service by utilizing existing IP network so that telephone users can receive long distance and international phone service in internet and intranet environment with only local call charge.

In the IP phone in which Internet telephony technology is implemented, the display unit may display various contents. For example, the number or name of the other party currently talking on the phone may be displayed, or the call state, that is, the call, on hold, transfer, conference state, or the like may be displayed.

However, it is not easy to express the above contents consistently because there are various types of IP phones and different sizes of the display unit. In addition, the problem becomes even worse when IP phones of various companies coexist.

Accordingly, the present invention has been made in view of the above-mentioned problems, and the IP phone which allows the IP phone using the media gateway control protocol in the Internet network to receive call information to be displayed on the display unit from the media gateway controller in the form of an XLM. An object of the present invention is to provide a screen output device and method using XML.

In addition, another object of the present invention is to receive the output screen of the display unit in the IP phone from the server in the form of XML.

Another object of the present invention is to newly define a media gateway control protocol package for exchanging information in an XML format between an IP phone and a media gateway controller.

1 is a block diagram showing the configuration of a screen output device using the X-MEL in the IP phone of the present invention.

Figure 2 is a flow chart of the operation of the screen output method using the XL in the present invention IP phone.

** Description of the symbols for the main parts of the drawings **

10: Media Gateway Controller 20: Internet

30: Gateway 40: IP Phone

According to a first aspect of the present invention, the media gateway controller is configured to control and generate a media gateway control protocol message, and to store the information of the XML format of the output screen compatible with each IP phone.

According to a second aspect of the present invention, each IP phone is configured to process a media gateway control protocol message, include an XML decoding module, and display the decoded XML message on a display unit.

According to a third aspect of the present invention, each media gateway control protocol message is characterized by including an XML package.

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

1 is a block diagram showing the configuration of a screen output device using the X-Mell in the IP phone of the present invention, as shown in the control and generating a media gateway control protocol message containing information on the call status on the network, each IP A media gateway controller (10) for storing information of an XML format of an output screen compatible with the phone; It is composed of IP phones 40 and 50 which process messages transmitted from the media gateway controller 10 and decode XML format information included in the messages and display them on the display unit.

2 is an operation flowchart of the screen output method using the XL in the IP phone of the present invention. As shown in FIG. An XML package defining step (S11) including the package information and the call state information; A message processing step (S12) of transmitting, by the media gateway controller, the media gateway control protocol message defined by the XLM package definition step to the IP phone corresponding to the destination of the message; An exemplary embodiment of the present invention includes a message decoding step (S13) of processing a message transmitted from the media gateway controller in an IP phone and decoding the call state information of the X-MEL format included in the message and displaying the call state information on the display unit. do.

The media gateway controller 10 packages the media gateway control protocol message by including the XLM format information and the call state information of the output screen compatible with each IP phone 40 or 50.

For example, the media gateway control protocol message and XML package definition are described below with reference to the XML string included in the actual media gateway control protocol message.

Physical Media Gateway Control Protocol Messages RQNT 1260 d001 @ 00002505b0ea MGCP 0.1N: cs@lgelab.co.kr: 2432X: 92S: XML / xml (Test? Home? $ Dn = 8712) <----- XML StringT:

Here, it can be seen that the XML string is substituted as a parameter value of the signal request of the media gateway control protocol message. This XM L string is decoded in the IP phones 40 and 50 and displayed on the display unit.

The media gateway controller 10 acts as a call server. That is, it has state information of all IP phones 40 and 50 and gateway 30, and processes and manages media gateway control protocol messages.

In addition, the media gateway controller 10 has a format and contents of call state information of the IP phone, and when the information is transmitted to the IP phone, the media gateway controller 10 is included in the XMEL package of the media gateway control protocol message and transmitted.

When the IP phones 40 and 50 receive the media gateway control protocol message transmitted from the media gateway controller 10, the IP phones 40 and 50 decode the media gateway control protocol message and output the decoded media to the display unit.

Here, the XML package included in the media gateway control protocol message will be described with reference to the example given below.

Looking at the code of the XML package called the test illustrated in the media gateway controller 10,

XML Grammar Name: Test <wml> <card id = ＼ "home＼"> <p mode = ＼ "nowrap＼"> $ dn <time value = ＼ "21:00 pm＼" align = ＼ "right＼" gt; </ time> < select type = ＼ "item＼" name = ＼ "Menu＼" iname = # 8726; "StrMenu＼"> <option value = ＼ "1＼" onpick = ＼ "post?% deck?% id?% name =% value＼ "> MENU </ option> </ select> </ p> </ card> .... </ wml>

As described above, when the IP phones 40 and 50 receive the media gateway control protocol message including the XML package, they are decoded and output to the display unit as follows.

8712 09: 00MENU

The user can check the call status information of the IP phone displayed on the display.

As described in detail above, the present invention has the effect of consistently outputting or managing call state information in a communication environment in which various types of IP phones coexist.

In addition, the use of XMEL has the effect that it is very simple to transmit only the information except the information that is not necessary to transmit.

In addition, by newly defining a media gateway control protocol package, an existing standard protocol, the media gateway control protocol, can be used without defining new messages or protocols.

Claims (2)

A media gateway controller for controlling and generating a media gateway control protocol message containing information on a call status on a network, and storing information in an XML format of an output screen compatible with each IP phone; And an IP phone for processing the message transmitted from the media gateway controller and decoding the information of the XL format included in the message and displaying it on the display unit. An XML package defining step of including, in a media gateway controller, a media gateway control protocol message by including XML format information and call state information of an output screen compatible with each IP phone; A message processing step of transmitting, by a media gateway controller, a media gateway control protocol message defined by the XLM package definition step to an IP phone corresponding to a destination of the message; In the IP phone, a message decoding step of processing a message transmitted from the media gateway controller and decoding the call state information of the X-M type included in the message and displaying it on a display unit Output method.