Wendell F Brown

7408926, Aug 5, 2008

Sep 2, 2004

10/934830

Andrew M. Moeck - Huntington Beach CA, US
Wendell D. Brown - Las Vegas NV, US

Microsoft Corporation - Redmond WA

H04L 12/66
H04L 12/56
H04J 3/22

370352, 370401, 370466, 370467

A service is provided through an apparatus operative under Internet Protocol (IP) as part of the Internet to handle packet switched voice traffic according to Session Initiation Protocol (SIP) to control incoming packet switched control traffic by fielding SIP control traffic and substituting control signals that can traverse a firewall and handle Network Access Traversal (NAT) over an Internet Protocol (IP) network. To this end, a client behind a firewall initiates an outbound multimedia stream via a conventional voice path according to the Realtime Transport Protocol (RTP) to a SIP gateway, which in turn routes voice traffic via the Internet to the client using an XML interface to bypass the SIP-designated ports. The interface bridges the firewall and is supported by a server on the Internet that handles conventional SIP UDP interface traffic.

7617525, Nov 10, 2009

Jun 21, 2005

11/157421

Andrew Moeck - Huntington Beach CA, US
Wendell Brown - Las Vegas NV, US

Alto Ventures, Inc. - Las Vegas NV

G06F 9/00
G06F 17/00
G06F 15/16

726 11, 709227, 709228, 709229

A system and method for conducting a client-server application (e. g. , instant messaging, VOIP telephony) using non-persistent communications. Clients issue periodic heartbeat messages to a connectionless server using a non-persistent (e. g. , UDP) communication protocol. The heartbeat messages identify the clients by unique client identifiers. When an application server has an unsolicited communication for a client (e. g. , a new instant message, a new VOIP call), the application server retrieves the client's address from the connectionless server if it does not already have the address. The application server forwards the unsolicited communication to the client via a non-persistent communication, and may spoof the connectionless server if necessary to reach the client through a firewall, proxy, NAT or similar entity. Clients that cannot use non-persistent protocols establish persistent connections with a client manager. The client manager issues heartbeat messages to the connectionless server and receives and forwards unsolicited communications for these clients.

8001590, Aug 16, 2011

Oct 6, 2009

12/574671

Andrew Moeck - Huntington Beach CA, US
Wendell Brown - Las Vegas NV, US

Alto Ventures, Inc. - Las Vegas NV

G06F 9/00
G06F 17/00
G06F 15/16

726 11, 709227, 709228, 709229

A system and method are provided for conducting a client-server application (e. g. , instant messaging, VoIP telephony) using non-persistent communications. Clients issue periodic heartbeat messages to a connectionless server using a non-persistent (e. g. , UDP) communication protocol. The heartbeat messages identify the clients by unique client identifiers. When an application server has an unsolicited communication for a client (e. g. , a new instant message, a VoIP call), the application server retrieves the client's address from the connectionless server if it does not already have the address. The application server forwards the unsolicited communication to the client via a non-persistent communication, and may spoof the connectionless server if necessary to reach the client through a firewall, proxy, NAT or similar entity. Clients that cannot use non-persistent protocols establish persistent connections with a client manager. The client manager issues heartbeat messages to the connectionless server and receives and forwards unsolicited communications for these clients.