Method of establishing communication exchange between a terminal of a packet-based network and a terminal connected to a remote access server

• US 6,862,626 B1
• Filed: 08/31/2000
• Issued: 03/01/2005
• Est. Priority Date: 09/06/1999
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ryu, Yeon-Seung
• Primary Examiner(s): Jean, Frantz B.
• Assistant Examiner(s): FLYNN, KIMBERLY D
• Application Number:
  US09/653,147
• Time in Patent Office: 1,643 Days
• Field of Search: 709/227, 709/245, 709/224, 709/228, 709/225, 370352-356, 370/389, 370/400, 370/401, 379/88.1, 455/435, 455/426, 455/465
• US Class Current: 709/227
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/45 Network directories; Name-to-address mapping
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1073 Registration or de-registration
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method for enabling a first terminal of a packet-based network to communicate with a second terminal connected to a remote access server includes the steps of: registering the aliases and IP addresses of the first terminal and the remote access server in the gatekeeper; letting the first terminal to send a message to the gatekeeper for requesting a connection with the second terminal; causing the gatekeeper to request the remote access server to connect with the second terminal even when the second terminal is not registered with the gatekeeper; causing the remote access server to request the second terminal to register its alias and IP address in the gatekeeper; and, establishing communication between the first and second terminals through the gatekeeper.

Claims

1. A method for enabling a first terminal of a packet-based network to communicate with a second terminal accessible by a remote access server, comprising the steps of:

(a) registering the aliases and IP addresses of said first terminal and said remote access server in a gatekeeper connected to said packet-based network;

(b) transmitting from said first terminal to said gatekeeper a message for requesting a connection with said second terminal;

(c) causing said gatekeeper to request said remote access server to connect with said second terminal even when said second terminal is not registered in said gate keeper;

(d) when the remote access server point-to-point connects, and assigns an IP address, to said second terminal by calling said second terminal over a circuit network, causing said second terminal to register the alias and the IP address of said second terminal in said gatekeeper; and

,

(e) establishing communication between said first terminal and said second terminal via said gatekeeper.

2. The method as defined in claim 1, wherein the step (c) of requesting said remote access server to connect with said second terminal further comprising the step of transmitting a message containing the phone number of said second terminal and a predetermined response time period to said remote access server.

3. The method as defined in claim 1, wherein the step (d) of causing said second terminal to register comprises the steps of:

allowing said remote access server to connect with said second terminal;

notifying said gatekeeper if said connection to said second terminal is unsuccessful;

notifying said gatekeeper of the IP address assigned to said second terminal if said connection to said second terminal is successful;

allowing said second terminal register the alias and the IP address of said second terminal in said gatekeeper; and

,

causing said gatekeeper to admit the registration of said second terminal.

4. The method as defined in claim 3, wherein said connection to said second terminal is unsuccessful when there is no available port or when said second terminal is busy.

5. The method as defined in claim 1, wherein said communication established between said first terminal and said second terminal further includes information associated with H.245 parameters.

6. A method for establishing communication between a first terminal connected to a packet-based network and a second terminal connected to a remote access server, comprising the steps of:

(a) establishing communication between said first terminal and said remote access server via a gatekeeper connected to the packet-based network;

(b) transmitting from said first terminal to said gatekeeper a message for requesting a connection with said second terminal even when said second terminal is not registered in said gatekeeper;

(c) requesting said remote access server by said gatekeeper to connect with said second terminal, the request including an acknowledgment of the availability of resources for communication between said remote access server and said second terminal over a circuit network;

(d) when said remote access server point-to-point connects, and assigns an IP address, to said second terminal by calling said second terminal over said circuit network, registering the IP address of said second terminal in said gatekeeper; and

(e) establishing over the connection by said remote access server communication between said first terminal and said second terminal via said gatekeeper.

7. The method as defined in claim 6, wherein the step (c) of requesting said remote access server to connect with said second terminal further comprising the step of transmitting a message containing the phone number of said second terminal and a predetermined response time period to said remote access server.

8. The method as defined in claim 7, wherein the step (d) of registering the IP address of said second terminal in said gatekeeper comprises the steps of:

allowing said remote access server to connect with said second terminal;

notifying said gatekeeper if said connection to said second terminal is unsuccessful;

notifying said gatekeeper of the IP address assigned to said second terminal if said connection to said second terminal is successful;

allowing said second terminal register the alias and the IP address of said second terminal in said gatekeeper; and

,

causing said gatekeeper to admit the registration of said second terminal.

9. The method as defined in claim 8, wherein said connection to said second terminal is unsuccessful when there is no available resource or when said second terminal is busy.

10. The method as defined in claim 6, wherein said communication established between said first terminal and said second terminal further includes information associated with H.245 parameters.

11. The method as defined in claim 6, wherein the step (a) of establishing said communication between said first terminal and said remote access server comprises the step of storing the IP address of said first terminal and said remote access server in said gatekeeper.