OKI Electric was one of the first companies to be in the VoIP gateway business in the nineties but they went silent a few years back. I figured they dropped out of the VoIP space altogether but this article on OKI Electric’s IP telephony gateway for the Japanese market shows the company is still in this space. I wonder if they will start targeting the US again.

 

Oh and it seems the differentiation between OKI’s gateways and others is the mobile Centrex functionality and other specific enhancement for the Japanese market.