focus of mobility to switch from the endpoint or device toward the person a common personal identity to be associated with multiple devices techniques for transferring contexts,including media flows,between devices a common non-IP personal identifier is associated with different interfaces on the same devices◼ focus of mobility to switch from the endpoint or device toward the person ◼ a common personal identity to be associated with multiple devices techniques for transferring contexts, including media flows, between devices ◼ a common non-IP personal identifier is associated with different interfaces on the same devices