Method and apparatus for an internet protocol multimedia subsystem-based three-way call

M Yu, TG Hallin, A Jeelani, N Srinidhi - US Patent App. 12/258,614, 2009 - Google Patents
A communication system provides for an Internet Protocol Multimedia Subsystem (IMS)-
based three way call. A mobile station (MS) that receives an invitation to participate in a call …

Apparatus and method to provide conference data sharing between user agent conference participants

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) …

Determination and Display of Endpoint Identities

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 …