Electrical computers and digital processing systems: multicomput – Computer conferencing – Priority based messaging
Reexamination Certificate
2006-04-04
2006-04-04
Caldwell, Andrew (Department: 2142)
Electrical computers and digital processing systems: multicomput
Computer conferencing
Priority based messaging
C709S227000
Reexamination Certificate
active
07024461
ABSTRACT:
A method and apparatus for handling subscriber services from different sources without requiring interaction with different devices. The present invention also provides a method and apparatus for receiving multimedia services using session initiation protocol (SIP) messages received from a source, such as a server on a network. In one embodiment, a set-top device is provided in which a SIP control is provided to register a subscriber with a server using SIP messages. A connection to a network, such as the Internet, is provided to communicate with the server. The set-top device is placed in line with the audio and video source to control audio and video streams presented to the subscriber. The set-top device is also configured to receive voice calls from a public switched telephone network (PSTN). Further, the set-top device includes a remote control mechanism, such as an infrared (IR) transmitter and receiver to receive input from the subscriber and to control other devices using IR signals. Also, subscriber services customized for a particular subscriber may be directed to the subscriber at a location when the subscriber registers with the server through a set-top device at that location using SIP. Services, such as, for example, call screening, channel guides, video on demand, and Web browsing are provided through the set-top device and messaging with a server using SIP messages.
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Ingle Trip
Janning William J.
Osterhout Gregory T.
Blair Douglas
Caldwell Andrew
Nortel Networks Limited
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