Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing
Reexamination Certificate
2005-11-18
2011-11-01
Pwu, Jeffrey (Department: 2478)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Reexamination Certificate
active
08051189
ABSTRACT:
Disclosed are methods, systems, and computer program products for notifying a Session Initiation Protocol (SIP) entity of a fast switchover event. According to one method a first SIP entity having an active host and a standby host is provided. At the active host a SUBSCRIBE message is received from a second SIP entity for subscribing to a fast switchover notification service. The standby host is switched to an active mode. In response to switching the standby host to active mode, a NOTIFY message is sent to the second SIP entity for notifying the second SIP entity that the standby host is operating in active mode.
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Chiu Phil
Onorato Richard A.
Genband US LLC
Jenkins Wilson Taylor & Hunt, P.A.
Khajuria Shripal
Pwu Jeffrey
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