Panasonic UC Pro for Mobile is a native App with selected Unified Communications (UC) and CTI functions (TAPI, CSTA). Required: Panasonic KX-NS/NSX Series system, ECSTA for UC Pro, UC Pro Server, UC Pro Web Services, UC Pro STUN/TURN Server. Once connected, UC Pro for Mobile users can: ・ Control Presence: share your current status information with other users.