JP3872477B2 - ローカルipネットワークを通した多重通話システム及び方法 - Google Patents
ローカルipネットワークを通した多重通話システム及び方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2514—Translation of Internet protocol [IP] addresses between local and global IP addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2517—Translation of Internet protocol [IP] addresses using port numbers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/255—Maintenance or indexing of mapping tables
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2564—NAT traversal for a higher-layer protocol, e.g. for session initiation protocol [SIP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1023—Media gateways
- H04L65/103—Media gateways in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1033—Signalling gateways
- H04L65/104—Signalling gateways in the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1106—Call signalling protocols; H.323 and related
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/663—Transport layer addresses, e.g. aspects of transmission control protocol [TCP] or user datagram protocol [UDP] ports
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
- Small-Scale Networks (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Description
前述してきたように、前記ローカルIPネットワーク101に接続された端末機からパケットが受信されると、ローカルIPネットワーク101のホームゲートウェイ100は、前記パケットが電話通話用であるか否かを検査し、電話通話のためのパケットである場合、前記電話通話のために既設定されたIP及びポート情報によって前記パケットのヘッダとペイロードの情報を変換して前記IPネットワークに伝送する。電話通話のためのパケットでない場合は、一般インターネット通信のためのパケットであるか否かを検査し、一般インターネット通信用であると、既設定されたIP及びポート情報によって前記パケットを変換して前記IPネットワークに伝送する。前記パケットが電話通話用でも一般インターネット通信用でもない場合は、前記パケットのIPアドレス及びポート番号はインターネット接続用として登録される。従って、前記ローカルIPネットワークに接続された複数の端末機が一つのIPアドレスを通して電話通話を遂行することができ、IPネットワークに接続された端末機をローカルIPネットワークに接続された端末機とインターフェーシングすることができる。
101 ローカルIPネットワーク
102〜109、150、151 コンピュータ
110 IPネットワーク
120 ゲートキーパ
610 TCP/UDP
611 TCP’/UDP’
620 IP
621 IP’
630 MAC
631 MAC’
Claims (2)
- ローカルIPネットワークに接続された複数の端末機に対して、1つのIPアドレスを使用して電話通話及びインターネット接続を遂行する方法において、
IPネットワークからパケットが受信されると、前記ローカルIPネットワークのホームゲートウェイによって、前記パケットが前記ローカルIPネットワークに割り当てられるか否かを判断する過程と、
前記パケットに含まれたIP及びポート情報を前記複数の端末機にインターネット通信のために割り当てられたポート情報を含むインターネット接続テーブルを参照して、前記パケットがインターネット通信用であるかどうかを判断する過程と、
前記パケットがインターネット通信用である場合、インターネット通信のためのパケットで前記パケットのペイロードを変換し、前記インターネット接続テーブルに含まれたポート情報のうち、前記パケットに含まれたポート情報に対応するポート情報に従う端末機へ前記パケットを伝送する過程と、
前記パケットがインターネット通信用ではない場合、前記パケットに含まれたポート情報を前記複数の端末機ごとに前記インターネット通信のために割り当てられたポートとは異なり、電話通話のために各々割り当てられたポート情報を含む電話接続テーブルを参照して、前記パケットが電話通話用であるかどうかを判断する過程と、
前記パケットが電話通話用である場合、電話通話のためのパケットで前記パケットのヘッダー及びペイロードを変換し、前記電話接続テーブルに含まれたポート情報のうち、前記パケットに含まれたポート情報に対応するポート情報に従う端末機へ前記パケットを伝送する過程と、
前記パケットが電話通話用ではない場合、該当パケットを廃棄する過程とを含むことを特徴とする方法。 - ローカルIPネットワークに接続された複数の端末機に対して、1つのIPアドレスを使用して電話通話及びインターネット接続を遂行する方法であって、
IPネットワークからパケットが受信されると、前記ローカルIPネットワークのホームゲートウェイによって、前記パケットが前記ローカルIPネットワークに割り当てられるか否かを判断する過程と、
前記パケットに含まれたIP及びポート情報を前記複数の端末機にインターネット通信のために割り当てられたポート情報を含み、前記複数の端末機ごとに、前記インターネット通信のために割り当てられたポートとは異なり、電話通話のためにそれぞれ割り当てられたポート情報を含むインターネット接続及び電話接続テーブルを参照して、前記パケットがインターネット通信用であるか、又は電話通話用であるかを判断する過程と、
前記パケットがインターネット通信用である場合、インターネット通信のためのパケットで前記パケットのペイロードを変換し、前記パケットに含まれたポート情報に対応するポート情報に従う端末機へ前記パケットを伝送する過程と、
前記パケットが電話通話用である場合、電話通話のためのパケットで前記パケットのヘッダ及びペイロードを変換し、前記パケットに含まれたポート情報に対応するポート情報に従う端末機へ前記パケットを伝送する過程と、
前記パケットが電話通話用及びインターネット通信用ではない場合、該当パケットを廃棄する過程とを含むことを特徴とする方法。
Applications Claiming Priority (1)
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KR20000014102A KR100689540B1 (ko) | 2000-03-20 | 2000-03-20 | 사설 아이피 네트워크를 통한 다중 통화 장치 및 방법 |
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JP2001079341A Division JP2001313676A (ja) | 2000-03-20 | 2001-03-19 | ローカルipネットワークを通した多重通話システム及び方法 |
Publications (2)
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JP2004147349A JP2004147349A (ja) | 2004-05-20 |
JP3872477B2 true JP3872477B2 (ja) | 2007-01-24 |
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JP2001079341A Pending JP2001313676A (ja) | 2000-03-20 | 2001-03-19 | ローカルipネットワークを通した多重通話システム及び方法 |
JP2004002439A Expired - Fee Related JP3872477B2 (ja) | 2000-03-20 | 2004-01-07 | ローカルipネットワークを通した多重通話システム及び方法 |
JP2004002440A Pending JP2004166301A (ja) | 2000-03-20 | 2004-01-07 | ローカルipネットワークを通した多重通話システム及び方法 |
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US (1) | US7447804B2 (ja) |
EP (1) | EP1137238B1 (ja) |
JP (3) | JP2001313676A (ja) |
KR (1) | KR100689540B1 (ja) |
DE (1) | DE60114276T2 (ja) |
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US20010032270A1 (en) | 2001-10-18 |
DE60114276T2 (de) | 2006-03-30 |
JP2001313676A (ja) | 2001-11-09 |
JP2004166301A (ja) | 2004-06-10 |
KR100689540B1 (ko) | 2007-03-08 |
EP1137238B1 (en) | 2005-10-26 |
EP1137238A2 (en) | 2001-09-26 |
JP2004147349A (ja) | 2004-05-20 |
US7447804B2 (en) | 2008-11-04 |
KR20010100227A (ko) | 2001-11-14 |
EP1137238A3 (en) | 2004-01-21 |
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