"Here is my summary of the claims that were found to be invalid: US patent 6,104,711: Claim 1 - A DNS (or similar) server translating an address based on a condition; Claim 3 - Like claim 1, where the condition is the status of an endpoint; Claim 11 - Like claim 1, where the condition is a query of an endpoint; US patent 6,282,574: Claim 5 - Like 711.1, where the server returns a phone number (but no condition is involved); Claim 6 - Like 574.5, where the server returns a phone number plus an IP (or similar) address"
Source: http://www.wirevolution.com/2008/10/07/verizons-basic-voip-patents-ruled-invalid/


