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Table 23-4 Cisco Unified Presence Server Platforms.
Systems, methods, and computer program products for providing cross-platform presence are described. In some implementations, a cross-platform presence server can be provided that allows a caller to accurately assess the availability and other similar status of a callee by evaluating a device status of a plurality of communication devices associated with the callee. The cross-platform presence server can then determine, based on these device statuses, whether a callee is available. The availability of the callee can subsequently be displayed to the caller (e.g., on the caller's phone), or any other individuals who have been granted permission by the callee to be notified of the callee's availability.