WO2002071704A1 - Procede pour maintenir une connexion en temps reel entre des telephones internet - Google Patents

Procede pour maintenir une connexion en temps reel entre des telephones internet Download PDF

Info

Publication number
WO2002071704A1
WO2002071704A1 PCT/KR2001/001061 KR0101061W WO02071704A1 WO 2002071704 A1 WO2002071704 A1 WO 2002071704A1 KR 0101061 W KR0101061 W KR 0101061W WO 02071704 A1 WO02071704 A1 WO 02071704A1
Authority
WO
WIPO (PCT)
Prior art keywords
internet
isp
phone
internet phone
subscriber
Prior art date
Application number
PCT/KR2001/001061
Other languages
English (en)
Inventor
Yong-Ho Song
Original Assignee
Anyusernet Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anyusernet Corporation filed Critical Anyusernet Corporation
Publication of WO2002071704A1 publication Critical patent/WO2002071704A1/fr

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • 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
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4535—Network 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
    • 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
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4557—Directories for hybrid networks, e.g. including telephone numbers
    • 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
    • H04L61/50—Address allocation
    • H04L61/5053—Lease time; Renewal aspects
    • 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
    • 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
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • 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
    • H04L65/1069—Session establishment or de-establishment

Definitions

  • the present invention relates to a method for maintaining the call connection between internet phones in real time using an ultra high-speed Internet network in which an internet phone (hereinafter, also referred to "IP phone”) is directly allocated an IP from an ISP
  • IP phone an internet phone
  • IP Internet Service Provider
  • a keep-alive signal is generated periodically so that when the ISP withdraws the IP compulsorily from the internet phone it provides the internet phone with a new dynamic IP again to enable a user to use the IP phone in the same way as a general telephone, and in which a gatekeeper can perform its intrinsic function even with a small capacity.
  • Fig. 1 In general, mobile phones refer to cellular phones or PCS phones, and a basic communication system for such phones to be connected to each other to enable a telephone call from one mobile phone to another, as shown, Fig. 1, comprises a telecommunication service company 40, a mobile telephone 50 used by subscribers who join the telecommunication service company 40 as members and communicate with each other, and a packet switched network 31 adapted to allow the telecommunication service company 40 to be connected to another telecommunication service company or a wired communication network.
  • Fig. 2 is a perspective view illustrating a typical web videophone which can be used according to the prior art.
  • a web videophone enables a calling party to speak by telephone face to face with a called party through a video screen.
  • a web videophone as shown in Fig. 2, includes a telephone body 11 having a key input section 12 installed thereto, a key board 13 mounted to the telephone body 11, and a display unit 18 mounted at any desirable position of the telephone body 11.
  • An image pickup device or a charge-coupled device (CCD) 19 is disposed at the middle portion of the upper edge of the display unit 18.
  • CCD charge-coupled device
  • an IC card recognizing (reading) section 20 mounted to the one side of the top surface of the telephone body 11 for inserting an IC card 21 having a user ID stored in an IC chip thereof to identify a web videophone user's ID.
  • Fig. 3 is a block diagram illustrating the construction of the typical web videophone of Fig. 2.
  • the web videophone 100 comprising an analog/digital converter A/D 22, a control section 23, a display unit 18, an interface I/F 24, and a modem 6.
  • the analog/digital converter A/D 22 is adapted to convert an image output from the image pickup device or charge coupled device (CCD) 19 into a digital signal.
  • the control section 23 is adapted to control the digital-converted video data.
  • the display unit 18 is adapted to convert the video data from the control section 23 into an analog signal to display the converted analog video signal thereon.
  • the interface I/F 24 is adapted to interface the digital data outputted from the control section 23 to conform to a modem standard.
  • the modem 6 is adapted to convert the interfaced digital data outputted from the interface I/F 24 in series or parallel to transmit it through the interface I/F 24 by way of a private (dedicated) line 5.
  • a reference numeral 30 denotes an Integrated Service Digital Network (hereinafter, referred to as "ISDN"), and a reference numeral 31 denotes an Internet network.
  • Fig. 4 is a block diagram illustrating a communication network system to which the typical web videophone is applied according to the prior art.
  • the communication network system comprising a plurality of web videophones 100, a distributor HUB 110, a router 120, a Wide Area Network (WAN) 32, and a server 200.
  • the plurality of web videophones 100 are connected to each other through a local area network (LAN) as shown in Fig. 3.
  • the distributor HUB 110 is adapted to distribute the plurality of web videophone 100, respectively.
  • the router 120 is adapted to connect a plurality of separated communication networks to each other between the distributor HUB 110 and a digital service unit (DSU) 130.
  • the Wide Area Network (WAN) 32 is adapted to allow the digital service unit (DSU) 130 to be connected to the Internet 31.
  • a reference numeral 140 denotes an Internet network accessing device which comprises the da stributor HUB 110, the router 120, and the digital service unit (DSU) 130.
  • a reference numeral 150 denotes a web videophone system comprising the Internet network accessing device 140, the plurality of web videophones 100, and the server 200.
  • Fig. 5 is a schematic block diagram illustrating a controlled information flow between a plurality of web videophones 100 and a server 200 in the communication network system of Fig. 4.
  • a system for controlling the information flow comprises a server 200, a plurality of web videophones 100 which have subscribed for the server 200, and personal computers (PCs) 300.
  • the server 200 includes a gatekeeper or directory server 210, a web server 220, and a data base server 300.
  • the IC card recognizing section 20 reads the insertion of the IC card 21 to transfer the subscriber's ID to the directory server 210 of the server 200.
  • the card recognizing section 20 of the web videophone 100 transfers the password information to the directory server 210 through the IC card 21 to identify whether or not the subscriber is a valid member.
  • the directory server 210 manages the operation status (log-on, line's busy, standby, etc.) of the web videophone used all over the world, and updates subscriber information in a two- minute cycle (not limited particularly to a specific cycle) to inform the web videophone 100 of the updated information.
  • the web server 220 functions as a server based on information search results from the gatekeeper 210, and a desired data is read on the basis of data of the data base server 230, if necessary, so that the gatekeeper 210 can perform its own function in real time.
  • Fig. 6 is a block diagram illustrating a wireless communication network system in which the web videophone is connected to a typical wireless mobile phone network to allow telephone calls between the mobile phone and the web videophone according to the prior art.
  • a mobile phone 50 or a terminal locates another mobile phone through a telecommunication service company 40 to communicate with the located other mobile phone.
  • the telecommunication service company 40 comprises a Base Transceiver Station (BTS) 41 adapted to provide an environment to communicate with the mobile phone 50 by using a protocol according to Interleaf Standard-95 (IS-95) at a wireless cell site ("region"), a Base Station Controller (BSC) 42 adapted to control a wireless link and a wired link through each base transceiver station (BTS) 41 and perform a handoff function to allow a subscriber to continuously maintain a telephone call even when the subscriber' s mobile phone communicating with a base transceiver station enters another base transceiver station's cell site, a Mobile Switching Center (MSC) 43 adapted to switch each base station controller (BSC) 42 and totally manage each Base Station Controller (BSC) 42, and a network converter 44 such as an Inter Working Function (hereinafter, referred to as "I
  • a typical router 140 or an Internet network accessing device is connected to the packet switched network 31 which in turn is connected to a videophone system enabling audio (e.g., voice) and video communications between the web videophones 100 through a gatekeeper 210 for guaranteeing a call quality state when there is an interconnection between the web videophones 100 through the Internet accessing device 140.
  • audio e.g., voice
  • video communications between the web videophones 100 through a gatekeeper 210 for guaranteeing a call quality state when there is an interconnection between the web videophones 100 through the Internet accessing device 140.
  • the new subscriber's web videophone may be connected additionally to the videophone system.
  • This videophone system enables a subscriber of the web videophone 100 to speak by telephone face to face with another subscriber of a web videophone 100 through a video screen, but enables only voice communication between a subscriber of the mobile phone 50 and the subscriber the web videophone 100, which is disadvantageous to a user using an expensive web videophone .
  • FIG. 7 is a schematic block diagram illustrating a communication network system for an Internet access through a general modem according to the prior art .
  • the communication network system comprises a computer body 61, a monitor 62 and a keyboard 63, a mouse 63-1, a general telephone connected to one port PI of the modem installed in the computer body 61, a central office 65 of a public telecommunication company connected to the other port P2 thereof, and a gateway 66 connected to an Internet network 31 or a packet switched network through the central office 65.
  • a communication network formed through the central office 65 enables a mutual telephone call between two subscribers, i.e., between an originating phone and a destination phone through PSTN.
  • Fig. 8 is a schematic block diagram illustrating a communication network system for use of an internet phone through a computer according to the prior art.
  • a handset or an Internet phone 64' consisting of a microphone 64-1 and a speaker 64-2 is substituted for the general telephone 64 in Fig. 7, and the microphone 64-1 and the speaker 64-2 are connected to a microphone port Ml and a speaker port SI, respectively.
  • Fig. 9 is a schematic block diagram illustrating a communication network system for interconnection between different communication networks according to Fig. 8.
  • FIG. 9 there is shown a state in which an internet phone user uses the internet phone.
  • Fig. 10 is a flow chart illustrating a process for access of an internet phone to a general telephone in the communication network system of Fig. 9 according to the prior art.
  • PSTN Public Switched Telephone Network
  • a calling party i.e., a user of a personal computer (PC: totally referring to the body 61, the monitor 62, and a keyboard 63 shown in Fig. 7) joins a user management server 70 as a member on an initial homepage of the user management server 70 and receives an authentication of the user ((D) from the user management server 70, he/she downloads an internet phone program from the user management server 70 to display the downloaded internet phone program on a monitor screen of the personal computer ((2), TI) .
  • a calling party i.e., a user of a personal computer (PC: totally referring to the body 61, the monitor 62, and a keyboard 63 shown in Fig. 7) joins a user management server 70 as a member on an initial homepage of the user management server 70 and receives an authentication of the user ((D) from the user management server 70, he/she downloads an internet phone program from the user management server 70 to display the downloaded internet phone program on a monitor screen of the personal computer
  • a gatekeeper 210 controls a call so that a gateway 66 has an access to the central office (exchange) 65 providing a general telephone service network through PSTN 67, and when the telephone conversation between the calling party and the called party is completed, the call terminates (T3) .
  • the gateway 66 acts to convert data type between packet data used in an Internet network 31 and PSTN data used in a PSTN.
  • Fig. 11 is a schematic block diagram illustrating a typical communication network system for enabling a telephone call between two web phones according to the prior art.
  • a web phone 100 as a web videophone requests authentication of a user of the web phone 100 to a gatekeeper 210 and receives identification of the authentication of the web phone user from the gatekeeper 210 to maintain quality of telephone conversation.
  • the gatekeeper 210 uses a router 140 to enable a multiple access with a packet switched network 31 by dividing a channel.
  • Fig. 12 is a flow chart illustrating a process for access of one web phone to another in the communication network system of Fig. 11 according to the prior art. The access process of one web phone to another via the packet switched network will be described hereinafter with reference to Figs. 11 and 12.
  • the gatekeeper (G/K) 210 identifies whether or not the web phone subscriber who has made a telephone call, i.e., a calling party is one of valid members stored in the gatekeeper (G/K) 210 (P2) . Then, if it is determined that the calling party is a valid member, the gatekeeper 210 allows the router 140 to form a call connection between two web phones through the packet switched network 31 as an Internet network, and terminates the call when the telephone conversation is completed.
  • the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to allow internet phone users to freely speak by telephone with each other anywhere and anytime like general telephone users.
  • a method for maintaining the call connection between internet phones in real time using an ultra high-speed Internet network comprising the steps of:
  • ISP internet phone number and an IP address assigned to the internet phone subscriber from the ISP to a gatekeeper
  • step (d) allowing the internet phone subscriber to be again allocated a new dynamic IP from the ISP by performing the DHCP If it is determined that the ISP withdraws the IP compulsorily from the internet phone.
  • the step (d) further may comprise the steps of: registering the internet phone number and a new IP address assigned to the internet phone subscriber from the ISP to the gatekeeper, and then performing the step (b) repeatedly.
  • an internet phone is directly allocated an IP from an ISP (Internet Service Provider) without using a computer, and a keep- alive signal is generated periodically so that when the ISP withdraws the IP compulsorily from the internet phone it provides the internet phone with a new dynamic IP again. Consequently, the gatekeeper increases in capacity and can perform its intrinsic function even with a small capacity.
  • ISP Internet Service Provider
  • Fig. 1 is a schematic block diagram illustrating a wireless communication network system of a telecommunication service company for use with a typical mobile telephone according to the prior art
  • Fig. 2 is a perspective view illustrating a typical web videophone which can be used according to the prior art
  • Fig. 3 is a block diagram illustrating the construction of the typical web videophone according to the prior art
  • Fig. 4 is a block diagram illustrating a communication network system to which the typical web videophone is applied according to the prior art
  • Fig. 5 is a block diagram illustrating a concrete signal flow between a plurality of web videophones and a server in the communication network system of Fig. 4;
  • Fig. 6 is a block diagram illustrating a wireless communication network system implemented to allow a telephone conversation between a typical mobile phone and the web videophone according to the prior art
  • Fig. 7 is a schematic block diagram illustrating a communication network system for an Internet access through a general modem according to the prior art
  • Fig. 8 is a schematic block diagram illustrating a communication network system for use of an internet phone through a computer according to the prior art
  • Fig. 9 is a schematic block diagram illustrating a communication network system- for interconnection between different communication networks of Fig. 8 according to the prior art
  • Fig. 10 is a flow chart illustrating a process for access of an internet phone to a general telephone in the communication network system of Fig. 9 according to the prior art;
  • Fig. 11 is a schematic block diagram illustrating a typical communication network system for enabling a telephone call between two web phones to another used according to the prior art
  • Fig. 12 is a flow chart illustrating a process for access of one web phone to another in the communication network system of Fig. 11 according to the prior art
  • Fig. 13 is a block diagram illustrating the communication network system for implementing a method according to the present invention.
  • Fig. 14 is a flow chart illustrating a process for explaining the method according to the present invention.
  • Fig. 13 is a block diagram illustrating the construction of the communication network system for the call connection between IP phones using an ultra highspeed Internet network according to the present invention .
  • the communication network system including an IP phone 80 having a microcomputer 81 and an ADSL modem 82, and an ISP 90.
  • the microcomputer 81 performs the overall operation of the communication network system, generating a keep-alive signal periodically and controlling the ISP 90 so that the IP phone 80 can be allocated a dynamic IP from the ISP 90 when the ISP 90 withdraws an IP compulsorily from the IP phone 80.
  • the ADSL modem 82 transmits and receives voice and digital data simultaneously through an ultra high-speed Internet network.
  • the ISP 90 controls the interconnection between an Internet network 31 and the IP phone 80 to maintain the call connection between the IP phones 80.
  • Connected to the Internet network 31 is a gatekeeper 210 for storing an IP address and an internet phone number of an ISP subscriber therein.
  • the ISP 90 includes a DSLAM (Digital Subscriber
  • Line Access Multiplexer 91 for multiplexing the ADSL modem 82 of the IP phone 80 as the internet phone of each subscriber, an RAS (Remote Access Server) 92 for connecting data accessed through the DSLAM 91 to the Internet network 31, a user management server 93 for managing information about a user through the RAS 92, a dynamic IP allocating server 94 for allocating an IP of the user to his/her IP phone 80 through the RAS 92, a hub 95 for connecting the user management server 93 and the dynamic IP allocating server 94 with each other, and a router 95 for connecting the ISP 90 and the Internet network 31 with each other.
  • RAS Remote Access Server
  • Fig. 14 is a flow chart illustrating a process for explaining the method according to the present invention.
  • a subscriber of the internet phone 80 is allocated an IP from the Internet Service Provider (ISP) 90, and then an internet phone number and an IP address assigned to the internet phone subscriber from the ISP 90 are registered to the gatekeeper 210.
  • ISP Internet Service Provider
  • step P10 a first user of an internet (IP) phone 80 enters his/her own ID and password.
  • step P12 it is determined whether or not the user receives authentication of his/her own ID and password from the user management server 93 of the ISP 90.
  • step P12 If it is determined at step P12 that the user receives authentication of his/her own ID and password from the user management server 93, the program proceeds to step P13 where it is determined whether or not the user is allocated an dynamic IP from the dynamic IP server 94 of the ISP 90 based on a DHCP (Dynamic Host Configuration Protocol) (i.e., a well-known protocol for dynamically allocating an IP) . If it is determined at P13 that the user is allocated an dynamic IP from the dynamic IP server 94, the program proceeds to step P14 in which an internet phone number and an IP address assigned to him/her from the ISP 90 are first registered to the gatekeeper 210.
  • DHCP Dynamic Host Configuration Protocol
  • step P13 if it is determined at step P13 that the user is not allocated the dynamic IP from the dynamic IP server 94 or there occurs an overflow (over-load), the program returns to step P12. In the meanwhile, if it is determined at previous step P12 that the user does not receive authentication of his/her own ID and password from the user management server 93, the program returns to step Pll in which the user enters his/her own ID and password again.
  • the internet phone 80 of the user waits for a telephone call and the microcomputer 81 of the internet phone 80 of the user generates a keep-alive signal periodically to inform the ISP 90 that the internet phone 80 is in use. Subsequently, it is determined at step R10 whether or not the ISP 90 withdraws the IP compulsorily from the internet phone 80. If it is determined at step R10 that the ISP 90 does not withdraw the IP compulsorily from the internet phone 80, the program returns to step Q10 to perform the steps Q10 and R10 again.
  • step R10 If, on the other hand, it is determined at step R10 that the ISP 90 withdraws the IP compulsorily from the internet phone 80, the program proceeds to step S10 where the user is again allocated an dynamic IP from the dynamic IP server 94 by performing the DHCP (Sll), and then the internet phone number and a new IP address assigned to the internet phone subscriber from the ISP 90 are registered to the gatekeeper 210 (S12). Then, the program returns to step Q10 to repeatedly perform the subsequent steps Q10, R10 and S10.
  • the keep-alive signal used herein is selected to be used as a signal informing the ISP 90 that the internet phone 80 of the subscriber is in use, having an internet phone number and an IP address of the subscriber included in a message field constituting a general communication protocol (H.323).
  • the microcomputer 81 of the IP phone 80 has an algorithm such as the process routine of Fig. 14 built therein.
  • a first user of the IP phone 80 enters his/her own user ID and password (Pll) .
  • the user undergoes authentication of the user ID and password from the user management server 93 of the ISP 90 through the ADSL modem 82, the DSLAM 91, and the RAS 92 (P12) .
  • the first step (Pll) is performed repeatedly.
  • the microcomputer 81 performs the DHCP so that the user' s IP phone 80 is allocated any dynamic IP from the dynamic IP server 94 (P13) .
  • An internet phone number and an IP address assigned to the user from the ISP 90 are registered to the gatekeeper 210 via the Internet network 31 on the basis of the allocated dynamic IP (P14) so that the first registration step S10 is completed.
  • the IP phone 80 waits for a telephone call, and the microcomputer 81 of the IP phone generates a keep-alive signal periodically for application to the gatekeeper 210.
  • the reason for this is that the gatekeeper 210 cannot check the status of the IP phone 80 due to a compulsory withdrawal or a re-distribution of the IP by the ISP 90, an over-load over a communication network, or a temporary network failure (for example, a transient discontinuity of communication for two to three minutes) after the lapse of a certain period of time. Accordingly, the present invention generates a keep-alive signal periodically to resolve this problem.
  • the microcomputer 81 performs the DHCP to allow the ISP to allocate the user' IP phone 80 a new dynamic IP (Sll), and registers the IP phone number and a new IP address of the user's IP phone 80 to the gatekeeper 210 so that registration information of the IP phone 80 can be updated. Accordingly, the IP phone subscriber always maintains an online state so that he/she can continuously speak by telephone with anyone at anytime like a general telephone (S12).
  • S12 general telephone
  • the IP phone generates a keep-alive signal periodically so that when the ISP withdraws the IP from the IP phone compulsorily the microcomputer recognizes this and allows the ISP to allocate the IP phone a new dynamic IP again to enable a continuous telephone call between the IP phone subscribers like a general telephone. Consequently, since the IP phone users increase in number, they can always use a general telephone under an Internet environment that do not incur an additional calling charge, thereby saving a phone charge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un procédé permettant de maintenir une connexion d'appel en temps réel entre des téléphones Internet au moyen d'un réseau Internet ultra-rapide. Ce procédé consiste à : a) permettre l'allocation d'un numéro IP à un abonné d'un téléphone Internet par un fournisseur de services Internet (ISP), de manière à enregistrer un numéro de téléphone Internet et une adresse IP attribuée à l'abonné d'un téléphone Internet par le fournisseur de services vers un contrôleur d'accès, b) attendre un appel téléphonique et produire périodiquement un signal de repos destiné à informer le fournisseur de services que le téléphone Internet est en cours d'utilisation, c) déterminer si le fournisseur retire ou non l'IP obligatoirement du téléphone Internet et (d) permettre l'allocation d'un nouveau numéro IP à l'abonné d'un téléphone Internet par le fournisseur de services par le biais du protocole DHCP, s'il est déterminé que ce fournisseur retire l'IP obligatoirement du téléphone Internet.
PCT/KR2001/001061 2001-03-06 2001-06-21 Procede pour maintenir une connexion en temps reel entre des telephones internet WO2002071704A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020010011556A KR20020071414A (ko) 2001-03-06 2001-03-06 초고속 인터넷망을 이용한 인터넷폰 실시간 접속 유지방법
KR2001/11556 2001-03-06

Publications (1)

Publication Number Publication Date
WO2002071704A1 true WO2002071704A1 (fr) 2002-09-12

Family

ID=19706539

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2001/001061 WO2002071704A1 (fr) 2001-03-06 2001-06-21 Procede pour maintenir une connexion en temps reel entre des telephones internet

Country Status (2)

Country Link
KR (1) KR20020071414A (fr)
WO (1) WO2002071704A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004030314A1 (fr) * 2002-09-27 2004-04-08 Matsushita Electric Industrial Co., Ltd. Serveur, dispositif, et systeme de communication relie a l'internet
EP1679873A1 (fr) * 2005-01-07 2006-07-12 Samsung Electronics Co., Ltd. Enregistrement de numéros de téléphone de terminaux sans fil
CN1748387B (zh) * 2003-02-06 2010-12-08 松下电器产业株式会社 信息传输系统及方法、电器或信息通信装置、电器或通信控制方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100427771B1 (ko) * 2001-09-03 2004-04-30 아이피원(주) Ｌａｎ 기반 인터넷 전화 착발신 장치 및 방법
KR20030093540A (ko) * 2002-06-03 2003-12-11 (주)코스모브리지 인터넷망을 기반으로 하는 전화통신 서비스 관리 시스템및 방법
KR100751101B1 (ko) * 2004-11-05 2007-08-22 주식회사 팬택앤큐리텔 이동통신 단말기에 할당된 ｉｐ 관리 시스템 및 방법
KR100914036B1 (ko) * 2007-12-05 2009-08-28 성균관대학교산학협력단 Ｉｐ주소가 할당되지 않은 호스트에 착신서비스가가능하도록 하는 ｉｐ주소 동적할당 장치 및 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000037015A (ko) * 2000-04-04 2000-07-05 한상수 아이피자동할당기능이 내장된 허브
US6127636A (en) * 1997-02-03 2000-10-03 Sony Corporation Rotary switch with direction-of-rotation output
KR20010035624A (ko) * 1999-10-01 2001-05-07 윤종용 인터넷 폰 단말을 이용한 인터넷 전화 연결 장치 및 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974453A (en) * 1997-10-08 1999-10-26 Intel Corporation Method and apparatus for translating a static identifier including a telephone number into a dynamically assigned network address

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6127636A (en) * 1997-02-03 2000-10-03 Sony Corporation Rotary switch with direction-of-rotation output
KR20010035624A (ko) * 1999-10-01 2001-05-07 윤종용 인터넷 폰 단말을 이용한 인터넷 전화 연결 장치 및 방법
KR20000037015A (ko) * 2000-04-04 2000-07-05 한상수 아이피자동할당기능이 내장된 허브

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004030314A1 (fr) * 2002-09-27 2004-04-08 Matsushita Electric Industrial Co., Ltd. Serveur, dispositif, et systeme de communication relie a l'internet
US7418511B2 (en) 2002-09-27 2008-08-26 Matsushita Electric Indutrial Co., Ltd. Secured TCP/IP communication system for devices and private networks connected to the internet
CN1748387B (zh) * 2003-02-06 2010-12-08 松下电器产业株式会社 信息传输系统及方法、电器或信息通信装置、电器或通信控制方法
EP1679873A1 (fr) * 2005-01-07 2006-07-12 Samsung Electronics Co., Ltd. Enregistrement de numéros de téléphone de terminaux sans fil

Also Published As

Publication number Publication date
KR20020071414A (ko) 2002-09-12

Similar Documents

Publication Publication Date Title
JP3402190B2 (ja) オーディオ接続を確立する方法および分散型データベース
CA2256728C (fr) Agencement de doubleur telephonique
JP3522118B2 (ja) インターネット電話用ゲートウェイ装置
JP2001285476A (ja) Ｉｐ端末収容方法及びそのゲートウェイ装置及びゲートキーパー装置及びｉｐ端末
EP0883309A2 (fr) Système de communication indépendant de réseau
CA2270047A1 (fr) Procede et systeme pour selectionner une parmi plusieurs passerelles telephoniques destinees a servir une application eloignee
KR100357476B1 (ko) 블루투스-인터넷전화 게이트웨이 장치를 이용한 무선인터넷 전화 서비스 시스템
CN100579109C (zh) 服务控制网络系统
US20010010690A1 (en) Method, service switching point, service control point, internet gateway, program module, and internet terminal for establishing a connection between a telephone-network terminal and an internet terminal
EP1536621B1 (fr) Portabilité de numéros de terminal dans un réseau de télécommunications IP
WO2002071704A1 (fr) Procede pour maintenir une connexion en temps reel entre des telephones internet
JPH10322391A (ja) 通信端末および通信方法
TWI251414B (en) Mobile telephone system using a local area communication network
KR100456218B1 (ko) 구내통신 서비스를 이용한 인터넷전화 서비스제공 장치 및그 방법
CN100448254C (zh) 一种流动直拨网络电话的系统和方法
CN100588213C (zh) 一种固定直拨网络电话的系统和方法
KR19990047970A (ko) 랜 접속을 위한 통신 장치
EP1299982B1 (fr) Optimisation d'acces a des services
KR100375439B1 (ko) 무선(이동)전화기 인터넷 연결 콘텐츠 서비스 장치 및 방법
CN100584089C (zh) 一种ngn网络中软交换设备管理漫游网关的实现方法
KR100442436B1 (ko) 인터넷 전화망에서 ｉｖｒ 서비스를 이용한 사용자 인증방법
KR100407810B1 (ko) 음성 데이터 통합 인터넷 프로토콜과 공중전화 교환망간의 상호 지능망 서비스 방법 및 장치
Anerousis et al. The TOPS architecture for signaling, directory services and transport for packet telephony
KR100363610B1 (ko) 인터넷 전화 시스템 및 그 방법
RU2200370C2 (ru) Способ и устройство для сопряжения учрежденческой атс с сетью, работающей в асинхронном режиме передачи

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP