The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2010
Filed:
Dec. 13, 2007
Ioannis Cosmadopoulos, San Francisco, CA (US);
Vinod Mehra, Fremont, CA (US);
Anno R. Langen, Berkeley, CA (US);
Reto Kramer, Issaquah, WA (US);
Ioannis Cosmadopoulos, San Francisco, CA (US);
Vinod Mehra, Fremont, CA (US);
Anno R. Langen, Berkeley, CA (US);
Reto Kramer, Issaquah, WA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
The SIP server deployment can be comprised of an engine tier that provides high throughput processing and a state tier that maintains SIP state data in a set of partitions and replicas. Two sites of SIP server deployments can be configured, each being remotely located with respect to the other. A primary site can process various SIP transactions and communications and upon determining a transaction boundary, replicate the state data associated with the transaction being processed, to a secondary site. Engines in the primary site can generate hints for the state replicas which can be in turn responsible for replicating the SIP session state. The replicas can choose to follow or disregard the generated hints. Upon failure of the primary site, calls can be routed from the failed primary site to the secondary site for processing. Similarly, upon recovery, the calls can be re-routed back to the primary site.