Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing
Reexamination Certificate
2003-03-12
2008-08-12
Vaughn, Jr., William C. (Department: 2144)
Electrical computers and digital processing systems: multicomput
Computer-to-computer session/connection establishing
C709S228000
Reexamination Certificate
active
07412521
ABSTRACT:
A system and method for uniquely identifying an SIP device extends the SIP communications protocol with an end point identifier, carried for example in the header of an SIP transmission. The end point identifier is useful for routing, registration, subscription, and authentication. The end point (device) of a given user epid can be uniquely identified by creating a key from an epid and a user's address-of-record (URI). This in turn enables improved connection management and security association management when the connections/IP addresses are transient, such as when HTTPS tunneling is used.
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Bobde Nikhil P.
Buch Jeremy T.
Chitturi Ajay P.
Olson Sean C.
Simons David J.
Maniwang Joseph
Microsoft Corporation
Perkins Coie LLP
Vaughn, Jr. William C.
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