Abstract: A system for providing role-based Presentity availability information to a Watcher, comprising at least one Presentity User Agent for issuing a request to register a Presentity in at least one of a plurality of roles, and for generating context messages relating to changes in context of the Presentity. At least one Watcher User Agent is provided for issuing a role-based subscription request for the availability information. A Presence Service is provided for maintaining role-based Watcher subscriptions and issuing availability messages in response to generation of the context messages. A Role Manager is provided for (i) receiving each request to register a Presentity in a role and in response managing Presentity registration in that role, and (ii) receiving each role-based subscription request, and in response managing each role-based Watcher subscription to the availability information within the Presence Service.

Abstract: A method for facilitating communication with a user. The method comprises the steps of: receiving contact information for the user, from a presence service; checking to determine if a particular communication service is supported by the user; checking to determine if the contact address of the user is accessible; launching at least one of an appropriate helper application and objects; and initiating communication with the user through the particular communication service.

Abstract: A system for providing role-based Presentity availability information to a Watcher, comprising at least one Presentity User Agent for issuing a request to register a Presentity in at least one of a plurality of roles, and for generating context messages relating to changes in context of the Presentity. At least one Watcher User Agent is provided for issuing a role-based subscription request for the availability information. A Presence Service is provided for maintaining role-based Watcher subscriptions and issuing availability messages in response to generation of the context messages. A Role Manager is provided for (i) receiving each request to register a Presentity in a role and in response managing Presentity registration in that role, and (ii) receiving each role-based subscription request, and in response managing each role-based Watcher subscription to the availability information within the Presence Service.

Abstract: A method for facilitating communication with a user. The method comprises the steps of: receiving contact information for the user, from a presence service; checking to determine if a particular communication service is supported by the user; checking to determine if the contact address of the user is accessible; launching at least one of an appropriate helper application and objects; and initiating communication with the user through the particular communication service.

Abstract: A coordinated browsing system and method to provide bimodal feature access by having a caller access a single application through two browsers simultaneously. One browser delivers a voice application using a device that enables a voice path, and the other browser serves text to a device that displays textual data. An independent coordinator object communicates with the browsers to maintain a synchronized browsing experience across the two client browsers. The coordinator object detects events or changes in one browser and notifies the other browser accordingly.