There are a few UMA-based solutions floating around for automatically transferring PBX lines to phones when employees are in the office, but Japan's SoftBank
is taking a more direct approach by cutting WiFi out of the equation with its new White Office service launching in March. All of the key functions of a PBX -- transfer, hold, and so on -- will be supported, and unlike UMA, mobiles can be used as extensions whether their users are in or out of the office. So yeah, sorry, Japanese folks -- escaping work just got that
much harder. Pricing will be announced closer to launch.