A communications system of networked communications devices, method and program product for such a system. Location and presence information about system users is stored, e.g., in a central storage. An identity context reminder service monitors location and presence status for the communications devices for inconsistencies with stored user location and presence information. The identity context reminder service provides a reminder to a respective communications device for each inconsistency. An identity context reminder client may reside on the communications devices to facilitate managing identity context reminder notifications and stored location and presence information.