CA2571754A1 - System and method for peer-to-peer hybrid communications - Google Patents

System and method for peer-to-peer hybrid communications Download PDF

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Publication number
CA2571754A1
CA2571754A1 CA002571754A CA2571754A CA2571754A1 CA 2571754 A1 CA2571754 A1 CA 2571754A1 CA 002571754 A CA002571754 A CA 002571754A CA 2571754 A CA2571754 A CA 2571754A CA 2571754 A1 CA2571754 A1 CA 2571754A1
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Canada
Prior art keywords
endpoint
access server
sending
message
request
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Granted
Application number
CA002571754A
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French (fr)
Other versions
CA2571754C (en
Inventor
Sivakumar R. Chaturvedi
Satish Gundabathula
Rameshkumar Ravikumar
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Damaka Inc
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Individual
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Publication of CA2571754A1 publication Critical patent/CA2571754A1/en
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Publication of CA2571754C publication Critical patent/CA2571754C/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/54—Organization of routing tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0227—Filtering policies

Abstract

An improved system and method are disclosed for peer-to-peer communications.
In one example, the method includes retrieving a profile and a routing table from an access server by a first endpoint during an authentication process.
The profile identifies at least a second endpoint as an endpoint with which the first endpoint has permission to communicate. The routing table contains address information needed for the first endpoint to communicate directly with the second endpoint. The first endpoint sends a notification message directly to the second endpoint using the address information to inform the second endpoint that the first endpoint is online.

Claims (28)

1. A computer-implemented method for establishing and maintaining a communication session between first and second endpoints in a peer-to-peer network using a non-proprietary protocol, the method comprising:
retrieving a profile and a routing table from an access server by the first endpoint during an authentication process, wherein the profile identifies the second endpoint as an endpoint with which the first endpoint has permission to communicate, and the routing table contains address information needed for the first endpoint to communicate directly with the second endpoint; and sending a notification message from the first endpoint directly to the second endpoint using the address information to inform the second endpoint that the first endpoint is online.
2. The method of claim 1 further comprising:
sending a request message from the first endpoint directly to the second endpoint using the address information to request the establishment of the communication session;
receiving a response message by the first endpoint directly from the second endpoint; and establishing the communication session by the first endpoint directly with the second endpoint if the response message grants permission, wherein all signaling and media traffic messages are sent directly from the first endpoint to the second endpoint and from the second endpoint to the first endpoint.
3. The method of claim 1 or 2 further comprising:
identifying whether the second endpoint is online based on the profile; and sending the notification message only if the second endpoint is online.
4. The method of claim 1, 2, or 3 further comprising:
sending a STUN (Simple Traversal of UDP through NATs (Network Address Translation)) request from the first endpoint to a STUN server prior to the authentication process; and using information received from the STUN server in response to the STUN
request during the authentication process.
5. The method of claim 4 further comprising:
determining by the access server that the second endpoint is behind a device that will prevent it from receiving messages initiated by the first endpoint;
instructing the second endpoint to periodically send a message to the access server to maintain a first communication channel through the device; and prior to sending the profile and routing table to the first endpoint, instructing the second endpoint via the first communication channel to send a message to the first endpoint to open a second communication channel through the device for the first endpoint, wherein the first endpoint's notification message can traverse the device through the second communication channel to reach the second endpoint.
6. The method of claim 5 wherein the second endpoint closes the second communication channel if the first endpoint's notification message is not received within a predetermined period of time.
7. The method of claim 1, 2, 3, 4, 5, or 6 further comprising:
waiting for a response message sent from the second endpoint in response to the notification message; and if the response message is not received within a predetermined period of time, modifying a status of the second endpoint at the first endpoint to reflect the non-responsiveness.
8. The method of claim 1, 2, 3, 4, 5, 6, or 7 further comprising:
sending a request message from the first endpoint directly to the second endpoint using the address information to request the establishment of a voice call;
receiving a response message by the first endpoint directly from the second endpoint, wherein the response message indicates that the second endpoint cannot currently accept the request;
recording a voicemail at the first endpoint; and sending the voicemail for storage on both the second endpoint and the access server.
9. The method of claim 8 further comprising:
receiving the voicemail at the second endpoint; and sending an instruction from the second endpoint to the access server to delete the voicemail from the access server.
10. The method of claim 1 further comprising determining by the first endpoint that the second endpoint is currently offline;
recording a voicemail at the first endpoint;
sending the voicemail for storage on the access server;
receiving a message waiting indicator by the second endpoint from the access server during an authentication process of the second endpoint; and retrieving the voicemail from the access server by the second endpoint.
11. The method of claim 1 further comprising:
sending a deletion message from the second endpoint to the access server indicating that the first endpoint no longer has permission to communicate with the second endpoint;
updating the profile of the first endpoint on the access server to reflect the lack of permission;
sending a deletion message from the second endpoint directly to the first endpoint indicating that the first endpoint no longer has permission to communicate with the second endpoint; and deleting the information corresponding to the second endpoint that is stored at the first endpoint in real time upon receipt of the deletion message.
12. The method of claim 1 further comprising:
sending a request message from the first endpoint to the access server requesting contact information for the second endpoint;
determining by the access server whether the second endpoint is online or offline;
receiving the contact information by the first endpoint from the access server if the second endpoint is online;
sending a request message directly from the first endpoint to the second endpoint requesting that the first endpoint be added to a buddy list associated with the second endpoint;
receiving a response message by the first endpoint directly from the second endpoint either accepting or rejecting the request; and sending a message from the second endpoint to the access server to inform the access server that the request was accepted or rejected.
13. The method of claim 12 further comprising updating profile information associated with each of the first and second endpoints to reflect the relationship if the request was accepted.
14. The method of claim 12 further comprising:
storing the request message sent from the first endpoint to the access server if the second endpoint is offline;
sending the request message to the second endpoint from the access server during an authentication process of the second endpoint, wherein the authentication process indicates that the second endpoint is coming online;
sending a response message from the second endpoint directly to the first endpoint either accepting or rejecting the request; and sending a message from the second endpoint to the access server to inform the access server that the result was accepted or rejected.
15. The method of claim 12 further comprising:
storing the request message sent from the first endpoint to the access server if the second endpoint is offline;
determining by the access server that the first endpoint is offline when the second endpoint comes online;
sending the request message to the second endpoint from the access server during an authentication process of the second endpoint; and sending a response message from the second endpoint to the access server either accepting or rejecting the request.
16. A system for peer-to-peer communications, the system comprising:
an access server coupled to a packet-based communications network;
a first endpoint coupled to the access server via the communications network;
and a second endpoint coupled to the access server and the first endpoint via the communications network, the second endpoint having a softswitch configured to establish a communications channel directly with the first endpoint using routing information previously obtained from the access server, wherein signaling and media traffic communications between the first and second endpoints use non-proprietary protocols and do not pass through the access server.
17. The system of claim 16 wherein the signaling communications between the first and second endpoints utilizes the session initiation protocol (SIP) and wherein the media traffic communications utilizes the real-time transfer protocol (RTP).
18. The system of claim 16 or 17 wherein the access server comprises:
a web services layer configured to provide web services to the first and second endpoints;
a web server layer configured to support the web services layer; and a database layer configured to store and manage:
at least one session table identifying whether the first and second endpoints are online;
- first and second profiles for the first and second endpoints, respectively, wherein each profile identifies other endpoints with which the endpoint associated with the profile has permission to communicate; and first and second routing tables for the first and second endpoints, respectively, wherein each routing table contains address information needed for the endpoint associated with the routing table to communicate directly with the other endpoints in the endpoint's profile.
19. The system of claim 16, 17, or 18 wherein the second endpoint further includes an endpoint engine having:
the softswitch;
a management layer accessible to the softswitch and configured for managing a plurality of services provided by the second endpoint;
a feature layer accessible to the management layer and the softswitch and configured for supporting functionality needed to provide the services managed by the management layer; and a protocol layer configured to provide a plurality of protocols for supporting the functionality provided by the feature layer and communications with the first endpoint.
20. The system of claim 16, 17, 18, or 19 wherein the access server, first endpoint, and second endpoint form a home network, and wherein the system further comprises at least one device external to the home network.
21. The system of claim 20 wherein the external device must register with the access server before initiating contact with the first or second endpoints.
22. The system of claim 20 wherein the second endpoint is configured to connect directly with the external device using the softswitch, and wherein the second endpoint must provide credentials requested by the external device while establishing the connection.
23. Canceled
24. The system of claim 20 wherein the external device is coupled to the home network via another communications network, and wherein the other communications network is a public switched telephone network (PSTN).
25. The system of claim 20 wherein the external device is coupled to the home network via another communications network, and wherein the other communications network is a cellular network.
26. Canceled
27. The system of claim 24 or 25 further comprising a redirect server configured to receive a request from the first endpoint directed to the second endpoint and to provide the first endpoint with address information of the second endpoint, wherein the first endpoint can contact the second endpoint without involving the access server.
28. The system of claim 27 wherein the redirect server is configured to perform authentication of the first endpoint prior to providing the first endpoint with the address information of the second endpoint.
CA2571754A 2004-06-29 2005-03-29 System and method for peer-to-peer hybrid communications Expired - Fee Related CA2571754C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US58353604P 2004-06-29 2004-06-29
US60/583,536 2004-06-29
US62818304P 2004-11-15 2004-11-15
US60/628,183 2004-11-15
US62829104P 2004-11-17 2004-11-17
US60/628,291 2004-11-17
US11/081,068 US7656870B2 (en) 2004-06-29 2005-03-15 System and method for peer-to-peer hybrid communications
US11/081,068 2005-03-15
PCT/IB2005/000821 WO2006008589A1 (en) 2004-06-29 2005-03-29 System and method for peer-to-peer hybrid communications

Publications (2)

Publication Number Publication Date
CA2571754A1 true CA2571754A1 (en) 2006-01-26
CA2571754C CA2571754C (en) 2012-08-21

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Country Status (8)

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US (2) US7656870B2 (en)
EP (2) EP2574001B1 (en)
JP (3) JP4681697B2 (en)
CN (2) CN102685214B (en)
AU (1) AU2005264013B2 (en)
CA (1) CA2571754C (en)
MX (1) MX2007000141A (en)
WO (1) WO2006008589A1 (en)

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