Patent ID: 7203956

Claim:
A method for a clearinghouse or routing policy server to securely enroll a client device for an Internet telephony system, comprising the steps: receiving a first message via HTTP from a client Internet telephony device that comprises an automated request to obtain an identity of one of an Internet telephony clearinghouse and Internet telephony routing policy server, the request further comprising an automated computer programming variable operation that is set equal to alphanumeric text comprising ‘getcacert’ and that initiates a search for a certificate authority certificate; responding to the request by transmitting a second message comprising the certificate authority certificate of one of an Internet telephony clearinghouse and Internet telephony routing policy server in a Base64 format and encoded in ASCII with content type set to text/html; receiving a third message comprising a certificate request from the client Internet telephony device; responding to the client Internet telephony device request by signing the certificate; and transmitting a fourth message comprising the certificate signed by a certificate authority of one of the Internet telephony clearinghouse and the Internet telephony routing policy server.