P Koskelainen - US Patent 7,624,188, 2009 - Google Patents
BACKGROUND The Session Initiation Protocol (SIP) is defined in IETF RFC3261 (Rosenberget al., June 2002). In general, the SIP is an application-layer control (signaling) …
L Shen - US Patent App. 11/769,456, 2009 - Google Patents
BACKGROUND 0001 Remote live conferencing technology continues to proliferate, becoming increasingly more accepted by organi Zations and individuals. Additionally, live …