Patent ID: 8391459

Claim:
A non-transitory computer-readable storage medium, comprising computer instructions which, responsive to being executed by a processor of an application server, cause the processor to perform operations comprising: retrieving a called party number and a calling party number from an invite message of a communication session, wherein the retrieving of the called and calling party numbers is performed by the application server of an internet protocol multimedia subsystem network, and wherein the invite message is associated with a scheduled event between a calling party and a called party; identifying the calling party according to the calling party number; identifying the called party according to the called party number; retrieving calendar information of the called party; detecting in the calendar information the scheduled event associated with the calling party; retrieving presence information of the called party; detecting a conflict with the scheduled event according to the presence information of the called party; and resolving the conflict by adjusting a start time of scheduled events of the called party without regard for a preference established by the called party.