KR20000050733A - Extension phone conversation method for different subnet - Google Patents

Extension phone conversation method for different subnet Download PDF

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Publication number
KR20000050733A
KR20000050733A KR1019990000803A KR19990000803A KR20000050733A KR 20000050733 A KR20000050733 A KR 20000050733A KR 1019990000803 A KR1019990000803 A KR 1019990000803A KR 19990000803 A KR19990000803 A KR 19990000803A KR 20000050733 A KR20000050733 A KR 20000050733A
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group
extension
subnet
internet
gateway
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KR1019990000803A
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Korean (ko)
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KR100575637B1 (en
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김현준
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구자홍
엘지전자 주식회사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/45Network directories; Name-to-address mapping
    • H04L61/4535Network directories; Name-to-address mapping using an address exchange platform which sets up a session between two nodes, e.g. rendezvous servers, session initiation protocols [SIP] registrars or H.323 gatekeepers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/253Telephone sets using digital voice transmission
    • H04M1/2535Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)

Abstract

PURPOSE: A method for calling by an extension line on various subnet is provided to make internet phones which are installed to a same group identification, call by the extension line group by group, and to transmit a state information to only a device related to the speech to reduce a traffic, although another subnet is used, by mapping a virtual local area network number(Virtual LAN number) of an internet protocol(IP) gateway and the group identification(group ID) of the internet phones. CONSTITUTION: A method for calling by an extension line on various subnet comprises the steps of: mapping a virtual LAN number of a multimedia switch board(MSB) central processing unit(CPU) module of an internet protocol(IP) and a group identification(group ID); installing the group ID and extension numbers on internet phones. The Internet phones transmit a changed state message, if the group ID and the extension numbers are changed. The virtual LAN number of the gateway received the message is mapped to a new group ID and extension numbers.

Description

이종 서브넷 상에서 내선 통화 방법{EXTENSION PHONE CONVERSATION METHOD FOR DIFFERENT SUBNET}Extension call methods over heterogeneous subnets {EXTENSION PHONE CONVERSATION METHOD FOR DIFFERENT SUBNET}

본 발명은 이종 서브넷 상에서 내선 통화 방법에 관한 것으로, 특히 엠오씨에스(MOCS : Multimedia Office Communication System)에 의한 인터넷폰이 다른 서브넷(subnet)상에 있는 인터넷폰과 내선통화를 가능하게 하는 이종 서브넷 상에서 내선 통화 방법에 관한 것이다.The present invention relates to an extension calling method on a heterogeneous subnet, and in particular, an extension of an extension on a heterogeneous subnet that enables an extension call with an Internet phone on a different subnet by an Internet phone based on a multimedia office communication system (MOCS). It is about a call method.

엠오씨에스 인터넷폰은 단독으로 랜(LAN)에 연결되어 있는 모든 인터넷폰의 상태 정보를 가지게 하여 콜 서버(call server)가 필요없이 독립적으로 인터넷폰간의 링크를 확립할 수 있도록 되어 있다.The MCS internet phone has the status information of all the internet phones connected to the LAN alone, so that a link between the internet phones can be independently established without the need of a call server.

다시 말해 엠오씨에스 인터넷폰에서 내선 통화시 각 폰들은 자신의 상태 정보를 자신이 속해 있는 서브넷내에 브로드캐스트(Broadcast)방식으로 전송하게 되어 있다.In other words, during an extension call in an MCS internet phone, each phone transmits its status information in a subnet to which it belongs.

이와 같이 브로드캐스트된 정보에 의해서 같은 서브넷 상에 있는 상대측 인터넷폰의 상태를 알 수 있게 되므로 이 정보를 받지 못하는 다른 서브넷상의 인터넷폰과는 내선통화를 할 수 없다.Since the broadcasted information can be used to know the status of the other party's Internet phone on the same subnet, it is not possible to make an internal call to the Internet phone on the other subnet which does not receive this information.

즉, 도1과 같이 아이피 게이트웨이를 통해 각각 256개의 인터넷폰을 연결할 수 있는 복수개의 서브넷이 구성되어 있을 때 각 서브넷에 속해 있는 인터넷폰들은 서로 내선 통화가 가능하지만, 다른 서브넷에 속해 있는 인터넷폰과는 국선(전용선)을 통해서 연결 가능하게 된다.That is, as shown in FIG. 1, when a plurality of subnets are connected to each of 256 Internet phones through the IP gateway, Internet phones belonging to each subnet can call each other, but Internet phones belonging to different subnets Can be connected through a trunk line (dedicated line).

일반적으로 한 건물에서 서브넷을 구성할 때 보통은 층단위로 구성을 하기 때문에 같은 층 즉, 같은 서브넷을 사용하는 폰끼리는 내선통화가 가능하지만 다른 층과 통화 할 때는 국선(전용선)을 통해서 연결해야 한다.In general, when building subnets in one building, they are usually organized in units of floors, so phones that use the same floor, that is, the same subnet, can make internal calls, but when talking to another floor, they must be connected through a trunk line (private line). .

그러나, 상기 종래의 기술에 있어서는 같은 팀의 구성원이 같은 층(서브넷)을 사용할 경우는 내선 통화에 문제가 없으나 사무실과 실험실이 각각 다른 층(서브넷)에 있을 경우는 내선 통화가 불가능하고, 또한 인터넷폰의 상태 정보가 브로드캐스트 방식으로 전달되므로 실제 통화와는 관계가 없는 서브넷상의 모든 장치(서버, 웍스테이션 등)에게 까지 트래픽(Traffic)을 증가 시키게 되는 문제점이 있었다.However, in the conventional technology, when members of the same team use the same floor (subnet), there is no problem with the extension call, but when the office and the laboratory are located on different floors (subnet), the extension call is not possible and the Internet Since the status information of the phone is transmitted in a broadcast manner, there is a problem of increasing traffic to all devices (servers, workstations, etc.) on the subnet irrelevant to the actual call.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 창출한 것으로, 다른 서브넷을 사용하더라도 내선 통화가 가능하게 하고 통화에 관련된 장치에만 상태 정보를 전달할 수 있도록 하는 이종 서브넷 상에서 내선 통화 방법을 제공 하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and provides an extension call method on a heterogeneous subnet that enables extension calls even when using different subnets, and to transfer status information only to devices related to the call. Its purpose is to.

도1은 일반적인 서브넷의 연결을 보인 개념도.1 is a conceptual diagram showing a connection of a general subnet.

도2는 본 발명에 의해 이종 서브넷에서 내선 통화를 위한 과정을 도시한 순서도.Figure 2 is a flow chart illustrating a process for extension calls in heterogeneous subnets by the present invention.

도3은 인터넷폰 운영 메뉴의 예시도.3 is an exemplary view of an Internet phone operating menu.

도4는 그룹 아이디 및 내선 번호등이 포함되어 전송되는 상태 메시지의 구조도.4 is a structural diagram of a status message transmitted including a group ID and an extension number, and the like.

도5는 본 발명에 의한 이종 서브넷에서 내선 통화 방법을 보인 개념도.5 is a conceptual diagram illustrating an extension call method in a heterogeneous subnet according to the present invention;

이와 같은 목적을 달성하기 위한 본 발명은, 아이피 게이트웨이의 엠에스비(Multimedia Switch Board) 씨피유 모듈의 가상 랜 넘버(Virtual LAN number)와 그룹 아이디(Group ID)를 맵핑시키는 제1단계와; 인터넷폰에 그룹 아이디와 내선 번호를 설정하는 제2단계로 이루어짐으로써 달성되는 것으로, 본 발명에 따른 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention for achieving the above object, the first step of mapping a virtual LAN number (Group ID) of the virtual LAN number of the MS C (Multimedia Switch Board) CPI module of the IP gateway; This is achieved by a second step of setting a group ID and an extension number in the Internet phone, and the embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

도2는 본 발명에 의해 이종 서브넷에서 내선 통화를 위한 과정을 도시한 순서도로서, 이에 도시한 바와 같이 일단, 아이피 게이트웨이측은 엠에스비(Multimedia Switch Board) 씨피유 모듈의 가상 랜 넘버(Virtual LAN number)를 그룹 아이디(Group ID)와 맵핑을 시키게 된다.FIG. 2 is a flowchart illustrating a process for extension call in a heterogeneous subnet according to the present invention. As shown in FIG. 2, the IP gateway side may determine a virtual LAN number of a multimedia switch board CPI module. Mapping with Group ID.

즉, 한 그룹으로 설정한 아이피 어드레스들을 그룹 단위로 묶어 그룹 아이디를 '1'로 설정했다면 상기 아이피 어드레스들의 가상 랜 넘버를 '그룹 1'로 맵핑시킨다.That is, if the group ID is set to '1' by grouping IP addresses set as a group, the virtual LAN numbers of the IP addresses are mapped to 'group 1'.

다음, 엠오씨에스 인터넷폰측은 도3에 도시된 바와 같은 운영 메뉴를 호출하여 그룹 아이디와 내선 번호를 설정한다.Next, the MCS internet phone sets a group ID and an extension number by calling an operation menu as shown in FIG.

다음, 상기 설정을 마친 각 인터넷폰은 도4와 같이 그룹 아이디와 내선 번호를 포함한 상태 정보를 전달하게 된다.Next, each Internet phone that has completed the above setting transmits state information including a group ID and an extension number as shown in FIG.

여기서, 최상위는 자신의 이더넷 주소와 상태 메시지를 수신하는 상대측의 이더넷 주소를 지정하는데 사용하는 매체 접근 제어 헤드(Media Access Control : MAC Header)와; 메시지 타입 및 그룹 아이디와 내선 번호를 포함한 데이터부로 구성되어 있다.Here, the top is a Media Access Control (MAC Header) used to designate its Ethernet address and the Ethernet address of the other party receiving the status message; It consists of data part including message type, group ID and extension number.

이와 같은 상태 메시지를 수신한 아이피 게이트웨이의 엠에스비(Multimedia Switch Board)는 미리 프로그램 되어 있는 그룹 아이디에 할당된 가상 랜 넘버를 가상 랜 테이블에 업데이트 시킨다.Upon receiving the status message, the MS of the IP gateway (Multimedia Switch Board) updates the virtual LAN number assigned to the group ID that is pre-programmed in the virtual LAN table.

따라서, 만약 사용자가 다른 서브넷으로 자리를 이동할 경우는 해당 자리에 있는 인터넷폰을 자신이 원래 속해있던 그룹 아이디와 내선 번호로 상기 설명한 과정과 같이 바꾸면 된다.Therefore, if the user moves to a different subnet, the user can change the Internet phone in the seat with the group ID and extension to which he originally belonged as described above.

즉, 도5에 도시된 바와 같이 임의의 한 그룹(그룹 1)에 속해 있던 사용자가 잠시 실험을 위해 실험실로 근무지를 옮기게 되었을 때 다른 서브넷에 속해 있는 실험실의 인터넷폰을 그룹 아이디를 '그룹 1'로 하고, 사용자가 원래 사용하던 내선 번호로 바꾸어 설정하면 인터넷폰에서는 그 바뀐 상태 메시지를 전송하게 되고, 이에 따라 그 상태 메시지를 수신한 아이피 게이트웨이의 엠에스비는 가상 랜 넘버를 업데이트시키게 된다.That is, as shown in FIG. 5, when a user belonging to any one group (group 1) moves to a laboratory for an experiment for a while, the group ID of the internet phone belonging to the other subnet is set to 'group 1'. If the user changes to the extension number originally used, the Internet phone transmits the changed status message, and accordingly, MSB of the IP gateway receiving the status message updates the virtual LAN number.

예를 들어 실험실의 인터넷폰은 원래 '그룹 2'로 설정되어 있었으나 사용자에 의해 '그룹 1'로 바뀌게 됨으로써 종래에 상태 메시지를 받지 못하던 '그룹 1'의 정보를 받아 '그룹 1'과의 내선 통화가 가능하게 된다.For example, an Internet phone in a laboratory was originally set to 'Group 2', but it was changed to 'Group 1' by the user, and thus, an extension call with 'Group 1' received the information of 'Group 1', which had not previously received a status message. Becomes possible.

이상에서 설명한 바와 같이 본 발명 이종 서브넷 상에서 내선 통화 방법은 아이피 게이트웨이의 가상 랜 넘버와 인터넷폰의 그룹 아이디를 맵핑시킴으로써 다른 서브넷을 사용하더라도 같은 그룹 아이디로 설정된 인터넷폰 끼리는 서로 내선 통화가 가능하게 되며 또한 통화에 관련된 장치에만 상태 정보를 전달할 수 있도록 하여 트랙픽을 줄일 수 있는 효과가 있다.As described above, the extension call method on the heterogeneous subnet of the present invention maps the virtual LAN number of the IP gateway and the group ID of the Internet phone, so that even if a different subnet is used, the Internet phones set up with the same group ID can communicate with each other. Traffic can be reduced by allowing status information to be delivered only to the device involved in the call.

Claims (2)

아이피 게이트웨이의 엠에스비(Multimedia Switch Board) 씨피유 모듈의 가상 랜 넘버(Virtual LAN number)와 그룹 아이디(Group ID)를 맵핑시키는 제1단계와; 인터넷폰에 그룹 아이디와 내선 번호를 설정하는 제2단계로 이루어진 것을 특징으로 하는 이종 서브넷 상에서 내선 통화 방법.A first step of mapping a virtual LAN number and a group ID of an MS switch of an IP gateway of the IP gateway; An extension calling method on a heterogeneous subnet, comprising the step of setting a group ID and an extension number on an Internet phone. 제1항에 있어서, 상기 인터넷폰은 그룹 아이디와 내선 번호가 새롭게 바뀔 경우에는 그 바뀐 상태 메시지를 계속 전송하게 되고 이를 수신한 게이트웨이의 가상 랜 넘버가 새로운 그룹 아이디와 내선 번호로 맵핑되는 것을 특징으로 하는 이종 서브넷 상에서 내선 통화 방법.The method of claim 1, wherein when the group ID and extension number are newly changed, the Internet phone continuously transmits the changed status message, and the virtual LAN number of the gateway that receives the gateway ID is mapped to the new group ID and extension number. An extension call method on a heterogeneous subnet.
KR1019990000803A 1999-01-14 1999-01-14 Extension phone conversation method for different subnet KR100575637B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100403725B1 (en) * 2001-11-20 2003-10-30 삼성전자주식회사 Method for controlling group terminating call in voice over internet protocol system
KR100712770B1 (en) * 2005-06-27 2007-04-30 엘지전자 주식회사 Method for setting group address and ID of group address occupancy information message

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
KR940027441A (en) * 1993-05-31 1994-12-10 김광호 How to talk on a multifunction phone with multiple call lines
JP3637661B2 (en) * 1995-12-19 2005-04-13 ソニー株式会社 Terminal apparatus and transmission method
KR970056665A (en) * 1995-12-27 1997-07-31 구자홍 Extension Calling Method of Simple Switching Period Using Private ISDN
JPH10112755A (en) * 1996-10-03 1998-04-28 Star Telecom:Kk Inter-heterogeneous network exchange connecting device
KR100565182B1 (en) * 1998-11-27 2006-06-13 엘지전자 주식회사 How to establish communication link between heterogeneous networks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100403725B1 (en) * 2001-11-20 2003-10-30 삼성전자주식회사 Method for controlling group terminating call in voice over internet protocol system
KR100712770B1 (en) * 2005-06-27 2007-04-30 엘지전자 주식회사 Method for setting group address and ID of group address occupancy information message

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