Invention Grant
- Patent Title: Method for using recording rules and previous value selection rules for presence information in a communications system
- Patent Title (中): 在通信系统中使用记录规则和存在信息的先前值选择规则的方法
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Application No.: US12570175Application Date: 2009-09-30
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Publication No.: US08193934B2Publication Date: 2012-06-05
- Inventor: Anatoly Agulnik , Tyrone D. Bekiares , Peter M. Drozt
- Applicant: Anatoly Agulnik , Tyrone D. Bekiares , Peter M. Drozt
- Applicant Address: US IL Schaumburg
- Assignee: Motorola Solutions, Inc.
- Current Assignee: Motorola Solutions, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Valerie M. Davis
- Main IPC: G08B13/14
- IPC: G08B13/14

Abstract:
In a communications system, a presence server maintains and distributes presence information in accordance with recording rules and previous value selection rules. The presence server: associates a recording rule with each presence information element in a subset of a plurality of presence information elements for a presentity; maintains a set of previous values according to the recording rule associated with the presence information element, for each presence information element in the subset; receives an initial subscribe request from a watcher for one or more presence information elements in the subset; and in response to the initial subscribe request, notifies the watcher of a number of the previous values maintained for each presence information elements in the subscribe request, wherein the number of the previous values that is sent is determined by a previous value selection rule associated with each presence information element.
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Information query