An data packet network telephony system provides identification information of an end user terminal making an Internet telephone call to a call center terminal and provides a call center agent with the ability to cause an end user terminal making an Internet telephone call to display selected web pages...http://www.google.com/patents/US6914899?utm_source=gb-gplus-sharePatent US6914899 - Caller identification and voice/data synchronization for internet telephony and related applications
