Panasonic MobileSoftphone is a Panasonic PBX dedicated SIP based softphone application. It works as a PBX extension that supports basic voice and video call functions. The application is compatible with various Panasonic PBX such as KX-NSX1000Version 3.0 or later), KX-NS300Version 5.0 or later), and KX-HTS32/824 (Version 1.9 or later).

It is important to note that Panasonic MobileSoftphone is only a client application and not a VoIP service. It is necessary to use this application with the Panasonic PBX listed above. Some mobile network operators may prohibit or restrict the use of VoIP over their data network or impose additional fees and/or charges when using VoIP over their network. Therefore, it is recommended to ask your mobile network operator before using this application.