Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2011-07-12
2011-07-12
Ferris, Derrick (Department: 2463)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
Reexamination Certificate
active
07978686
ABSTRACT:
A system and method for feature-based service control using Session Initiation Protocol (SIP) in an Internet Protocol Automatic Branch Exchanges (IPABX) system is described. The system and method include a new Event package and new Enhanced SIP methods to control information for various feature-based services like wakeup alarm, call forwarding, voicemail configuration, and other services provided by traditional PBX systems. A user provides input to a client device to activate or deactivate feature-based services. In response, the client device sends a message to the IPABX server to activate or deactivate the feature-based service(s). The IPABX server then notifies the client device that the feature based-service(s) have been activated or deactivated.
REFERENCES:
patent: 2004/0008632 (2004-01-01), Hsu et al.
patent: 2005/0223391 (2005-10-01), McKinley et al.
patent: 2006/0159246 (2006-07-01), Abramson et al.
Dempsey Michael P.
Goyal Udit Kumar
Slowiak Gregory
Turgeon Anne-Marie
Anwar Mohammad
Ferris Derrick
Hewlett--Packard Company
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