H Khartabil, G Mayer - US Patent 7,280,533, 2007 - freepatentsonline.com
A system, apparatus, and method for routing communication requests based on user presence information. A network entity subscribes to the presence information of a user, and …
H Khartabil, G Mayer - US Patent App. 10/686,000, 2005 - Google Patents
(57) ABSTRACT A System, apparatus, and method for routing communication requests based on user presence information. A network entity Subscribes to the presence …
H Khartabil, G Mayer - US Patent App. 10/686,000, 2005 - freepatentsonline.com
A system, apparatus, and method for routing communication requests based on user presence information. A network entity subscribes to the presence information of a user, and …