International Business Machines Corporation

Galina Rubinshtein

Uri Segev

Gil Perzy

Ofira Tal-Aviv

Avshalom Houri

Marjorie Schejter

Gili Revel

Igor Goulko

Erik John Burckart

James Patrick Galvin, Jr

Vladimir Gamaley

Brian L Pulito

Ivan M Heninger

Nitzan Nissim

John D Kari

William Joseph Rippon

Amir Perlman

Yakov Kupherstein

Anat Fradin

Ofira Tal

Roman Mandeleil

Frieda-Gila Revel

Various embodiments include a system for online propagation of data updates. The system can include: a computer system for storing a plurality of records; and a record update utility configured to: initiate a record update process for any of the records responsive to a modification of a trigger data item, wherein the process is performed while the system is online; create an update process timestamp indicating a time at which the record update process is begun; and determine if a last-modified timestamp associated with any of the records indicates an earlier time than the update process timestamp, and, if so: update the record to reflect the modification to the trigger data item, and modify the last-modified timestamp to reflect a time that is later than the update process timestamp.

Online propagation of data updates

Providing SIP application server interoperability, including detecting at a first SIP application server an event necessitating that work be performed in relation to a SIP application session that is managed by a second SIP application server, creating a SIP message object carrying a set of instructions representing the work, and sending the SIP message object for delivery to the second SIP application server and performance of the instructions at the second SIP application server in relation to the SIP application session.

Asynchronous invocation mechanism in session initiation protocol (SIP) server clusters

An awareness notification management system including a contact list manager managing an awareness service subscriber contact list including an active sublist for active contacts and an archive sublist for disabled contacts, and an awareness manager for monitoring the status contact list members, where the awareness manager is configured to access a history including at least one timestamp of a last communication exchange between the awareness service subscriber and any of the members of the contact list, and query the history for any of the timestamps and classify any of the contacts as a disabled contact on the archive sublist if the timestamp for the contact is older than a predefined age, and where the awareness manager is configured to forward to the awareness service subscriber awareness notifications regarding the status of the active contacts and withhold from the awareness service subscriber awareness notifications regarding the status of the disabled contacts.

Managing contact list status notifications in collaboration systems to reduce network traffic

A method for online propagation of data updates, the method including initiating a record update process for any of a plurality of records in a system responsive to a modification of a trigger data item, where the process is performed while the system is online, creating an update process timestamp indicating a time at which the record update process is begun, and determining if a last-modified timestamp associated with any of the records indicates an eariler time than the update process timestamp, and, if so updating the record to reflect the modification to the trigger data item, and modifying the last-modified timestamp to reflect a time that is later than the update process timestamp.

A method for SIP presence server failover, the method including setting an expiration time of a SIP application session on a first SIP server having a first SIP presence server to match the expiration time of a SIP request that is associated with the SIP application session, setting a SIP request attribute set representing a plurality of attributes of the SIP request, replicating the SIP application session together with the attribute set to a second SIP server having a second SIP presence server, migrating the SIP application session to the second SIP server for activation thereat, detecting an event indicating that the SIP application session has been migrated, and upon detection of the event, reestablishing at the second SIP presence server the SIP request associated with the SIP application session and using the attribute set.

Sip presence server failover

A presence server includes a receiver to receive a variety of publishing and subscribe requests from a variety of sources; a plurality of elements to process the requests; and a presence manager to flexibly configure the elements as a function of the type of the requests received. A method for processing presence information includes receiving a variety of publishing and subscribe requests from a variety of sources; processing the requests with a plurality of elements; and configuring the elements as a function of the type of the requests received.

Flexibly configured presence server

A client attempts to transmit a presence state to a presence server that is behind a firewall of a secure network. If the client is inside the firewall, the presence server instructs resources within the secure network to directly communicate with the client. However, if the client is outside the firewall, then the client must tunnel into the secure network via a Virtual Private Network (VPN) before accessing the resources in the secure network.

VPN management

A method for ad-hoc group presence management, the method including configuring a presence server to receive information regarding a group and entities belonging to the group and create a group presentity associated with the group, and providing information regarding a group and its entities to the presence server, thereby causing the presence server to create the group presentity.

Growing community of inventors

Holon, Israel

Galina Rubinshtein