Patent ID: 8443092
Filing Date: 2013-05-14
Classification: H04L

Abstract:
1. A method of communicating to a first communication device presence information associated with a second communication device, comprising: providing available presence information associated with the second communication device; receiving from a source other than the first communication device first limitation information which indicates that the first communication device will be permitted to obtain less than all of said available presence information; receiving from the first communication device second limitation information which indicates that the first communication device is to receive less than all of said available presence information; and in response to said first limitation information and said second limitation information, providing less than all of said available presence information to the first communication device without providing the remainder of said available presence information to the first communication device; wherein said first limitation information includes information which indicates that a plurality of communication devices will be permitted to obtain respective amounts of said available presence information that differ from one another and are less than all of said available presence information, wherein said first limitation information defines a first amount of said available presence information that is to be received by one of said communication devices, and also defines a second amount of said available presence information, which is to be received by another of said communication devices, as a difference relative to the first amount.