Patrick N. Sollee

Text-based communications over a data network

Network address and/or port translation

Method and apparatus for providing advanced IP telephony services in an intelligent endpoint

Controlling voice communications over a data network

Changing media sessions

Protecting a network from unauthorized access

Address translation change identification

Method of identifying mobile station location to establish homezone feature

Distributed subscriber data management in wireless networks from a central perspective

Mobile communication system having improved visitor location register content management and method of operation