Dany Sylvain

Providing computer presence information to an integrated presence system

Presence information for telephony users

TARGETED ADVERTISING SYSTEM AND METHOD

Circuit-switched and multimedia subsystem voice continuity

Using reachability information to facilitate peer-to-peer communications

Interworking of dissimilar packet networks for telephony communications

Method and Apparatus for Managing Communication Between Participants in a Virtual Environment

Interworking of multimedia and telephony equipment

Location-based call routing

System and method for providing competing local exchange carriers unbundled access to subscriber access lines