Panasonic MobileSoftphone is a Panasonic PBX dedicated SIP based softphone application that can work as a PBX extension supporting basic voice and video call functions. Supported Panasonic PBX: KX-NSX1000/2000 (Version 3.0 or later) KX-NS300/500/700/1000 (Version 5.0 or later) KX-HTS32/824 (Version 1.9 or later) NOTES: - Panasonic MobileSoftphone is a client application and is not a VoIP service. - You must use this application with Panasonic PBX listed above. - Some mobile network oper