System and method for peer-to-peer media routing using a third party instant messaging system for signaling

• US 8,352,563 B2
• Filed: 04/29/2010
• Issued: 01/08/2013
• Est. Priority Date: 04/29/2010
• Status: Active Grant

• Current Assignee: Damaka, Inc.
• Original Assignee: Damaka, Inc.
• Inventors: Chaturvedi, Sivakumar, Gundabathula, Satish
• Primary Examiner(s): SHAW, PELING ANDREW
• Application Number:
  US12/770,482
• Publication Number:
  US 20110270932A1
• Time in Patent Office: 985 Days
• Field of Search: None
• US Class Current: 709/206
• CPC Class Codes: H04L 45/12 Shortest path evaluation
• CPC Class Codes: H04L 45/16 Multipoint routing
• CPC Class Codes: H04L 51/046 Interoperability with other network applications or services
• CPC Class Codes: H04L 51/48 Message addressing, e.g. address format or anonymous messages, aliases
• CPC Class Codes: H04L 61/2564 for a higher-layer protocol, e.g. for session initiation protocol [SIP]
• CPC Class Codes: H04L 61/2575 using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN]
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04M 3/42229 Personal communication services, i.e. services related to one subscriber independent of his terminal and/or location diverting calls from one subscriber to another subscriber, i.e. two different subscriptions H04M3/54; selecting arrangements in intelligent networks H04Q3/005
• CPC Class Codes: H04Q 2213/13176 Common channel signaling, CCS7
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13348 Channel/line reservation
• CPC Class Codes: H04Q 2213/13389 LAN, internet

Abstract

An improved system and method are disclosed for peer-to-peer communications. In one example, the method enables an endpoint to engage in a call with another endpoint using a third party instant message system to carry instant messages containing signaling information and a route that is external to the third party instant message system for both signaling and media information.

Claims

1. A method for using a third party instant message system as a signaling channel comprising:

receiving, by a first endpoint capable of operating within the third party instant message system and also capable of operating within a peer-to-peer hybrid network that is separate from the third party instant message system, user input representing a call request for a call to be placed to a second endpoint that is also capable of operating within the third party instant message system and the peer-to-peer hybrid network;

creating, by the first endpoint, a call request message containing address information of the first endpoint, wherein the call request message is an instant message able to sent via the third party instant message system;

sending, by the first endpoint, the call request message to the second endpoint via the third party instant messaging system;

receiving, by the first endpoint, a response message from the second endpoint via the third party instant message system, wherein the response message contains address information of the second endpoint;

establishing, by the first endpoint, at least one media route with the second endpoint to carry media for the call, wherein the at least one media route is established using the peer-to-peer hybrid network and not the third party instant message system; and

conducting the call by the first endpoint with the second endpoint, wherein the conducting includes sending and receiving, by the first endpoint, media information for the call via the at least one media route, and sending and receiving, by the first endpoint, signaling information for the call.

2. The method of claim 1 wherein sending and receiving the signaling information while conducting the call includes sending and receiving the signaling information using media packets transferred via the at least one media route.

3. The method of claim 2 wherein the media packets are real-time transport protocol (RTP) packets created by the first endpoint.

4. The method of claim 1 wherein sending and receiving the signaling information while conducting the call includes sending and receiving the signaling information using instant messages transferred via the third party instant message system.

5. The method of claim 1 further comprising encrypting, by the first endpoint, at least a portion of the call request message prior to sending the call request message to the second endpoint.

6. The method of claim 1 further comprising:

obtaining, by the first endpoint, address information for a reflector in the peer-to-peer hybrid network; and

using, by the first endpoint, the reflector to establish the at least one media route.

7. The method of claim 6 further comprising logging in to the peer-to-peer network before obtaining the address information for the reflector.

8. The method of claim 1 wherein the call request message further includes at least one parameter for the call.

9. The method of claim 1 further comprising determining, by the first endpoint, whether a timeout has occurred after sending the call request message to the second endpoint, wherein the timeout prevents the first endpoint from waiting indefinitely for the response message from the second endpoint if the second endpoint is not an endpoint within the peer-to-peer hybrid network.

10. A method for using a third party instant message system as a signaling channel comprising:

receiving, by a first endpoint capable of operating within the third party instant message system and also capable of operating within a peer-to-peer hybrid network that is separate from the third party instant message system, a call request message for a call from a second endpoint that is also capable of operating within the third party instant message system and the peer-to-peer hybrid network, wherein the call request message is an instant message received via the third party instant message system;

identifying, by the first endpoint, that the call request message contains a request for the call prior to sending the call request message to a user display associated with the third party instant message system, wherein the identifying prevents the call request message from being displayed to the user;

extracting address information of the second endpoint from the call request message;

sending, by the first endpoint, a response message to the second endpoint, wherein the response message contains address information of the first endpoint;

establishing, by the first endpoint, at least one media route with the second endpoint to carry media for the call, wherein the at least one media route is established using the peer-to-peer hybrid network and not the third party instant message system; and

conducting the call by the first endpoint with the second endpoint, wherein the conducting includes sending and receiving, by the first endpoint, media information for the call via the at least one media route, and sending and receiving, by the first endpoint, signaling information for the call.

11. The method of claim 10 wherein sending and receiving the signaling information while conducting the call includes sending and receiving the signaling information using media packets transferred via the at least one media route.

12. The method of claim 11 wherein the media packets are real-time transport protocol (RTP) packets created by the first endpoint.

13. The method of claim 10 wherein sending and receiving the signaling information while conducting the call includes sending and receiving the signaling information using instant messages transferred via the third party instant message system.

14. The method of claim 10 further comprising decrypting, by the first endpoint, at least a portion of the call request message prior to extracting the address information.

15. The method of claim 10 further comprising:

obtaining, by the first endpoint, address information for a reflector in the peer-to-peer hybrid network; and

using, by the first endpoint, the reflector to establish the at least one media route.

16. The method of claim 10 further comprising extracting, by the first endpoint, at least one parameter for the call from the call request message.

17. The method of claim 10 further comprising prompting, by the first endpoint, a user of the first endpoint to accept or reject the request for the call, wherein the prompting occurs via at least one of a display visible to the user, a speaker audible to the user, or a vibrating mechanism that can be felt by the user.

18. A system comprising:

a network interface;

a processor coupled to the network interface; and

a memory coupled to the processor and containing a plurality of instructions for execution by the processor, the instructions including instructions for a first endpoint configured to operate within a peer-to-peer hybrid network, the first endpoint including a client of a third party instant message system that enables the first endpoint to communicate via the third party instant message system, the instructions for the first endpoint including instructions for;

receiving, by the first endpoint, user input representing a call request for a call to be placed to a second endpoint that is also capable of operating within the third party instant message system and the peer-to-peer hybrid network;

creating, by the first endpoint, a call request message containing address information of the first endpoint, wherein the call request message is an instant message able to sent via the third party instant message system;

sending, by the first endpoint, the call request message to the second endpoint via the third party instant messaging system;

receiving, by the first endpoint, a response message from the second endpoint via the third party instant message system, wherein the response message contains address information of the second endpoint;

establishing, by the first endpoint, at least one media route with the second endpoint to carry media for the call, wherein the at least one media route is established using the peer-to-peer hybrid network and not the third party instant message system; and

conducting the call by the first endpoint with the second endpoint, wherein the conducting includes sending and receiving, by the first endpoint, media information for the call via the at least one media route, and sending and receiving, by the first endpoint, signaling information for the call.

19. The system of claim 18 wherein the instructions for sending and receiving the signaling information while conducting the call include instructions for sending and receiving the signaling information using media packets transferred via the at least one media route.

20. The system of claim 19 wherein the media packets are real-time transport protocol (RTP) packets.

21. The system of claim 18 wherein the instructions for sending and receiving the signaling information while conducting the call include instructions for sending and receiving the signaling information using instant messages transferred via the third party instant message system.

22. The system of claim 18 further comprising instructions for encrypting at least a portion of the call request message.

23. The system of claim 18 further comprising instructions for obtaining address information for a reflector in the peer-to-peer hybrid network, wherein the reflector is used to establish the at least one media route.

24. The system of claim 23 further comprising instructions for logging in to the peer-to-peer network before obtaining the address information for the reflector.