Coordination of information at the network-based level between call centers connectable over a telecommunications network, such as the telephone network, and a packet network, such as the Internet, creates improved integration of and bonding between a customer's interaction with a Web site and with a...http://www.google.com.hk/patents/US6385646?utm_source=gb-gplus-share專利 US6385646 - Method and system for establishing voice communications in an internet environment