MOT/Phone is SIP client softphone that let you use your Android smartphone to make an extension call. It supports AMRNB and SILK codec for better voice quality over mobile network. It is used in conjunction with MOT/PBX (IP-PBX) system. Basic Features MOT/Phone has a basic features of a business telephone, including the following: * Call via NTT-HIKARI and Japanese ITSP(050 Number) * Integrate mobile phones into your office's phone extension network. * Call hold, attended transfer, park hold. *