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.
* Onetouch-key dial. (Speed dial)
* Multi Domain. (Can be registered to two SIP server)

Application Consideration
* MOT/Phone might not receive a phone call immediately via mobile network due to its condition or specification.
* You might meet a problem if you use MOT/Phone and another VoIP application at the same time.
* Please subscribe flat-rate monthly charge service which enables economical use of packet communications.
* For improving the application, the access log to MOT/PBX is preserved in a server. And the information which specifies an individual isn't acquired.