A system and method for providing call management services in a Virtual Private Network of the present invention uses the advantages of end-to-end Internet Protocol signaling. The system and method of the present invention includes a user profile which offers both a customer address and a user name as...http://www.google.es/patents/US7218722?utm_source=gb-gplus-sharePatente US7218722 - System and method for providing call management services in a virtual private network using voice or video over internet protocol
System and method for providing call management services in a virtual ...
