I believe ESI and Vertical still have digital premise based systems.

NEC sold out to intermedia, just like Avaya and Mitel sold out to ringcentral. we will never push a product for a company that has no problem selling against us and stealing our customers.


Tadiran has a nice cloud or premise based system, its full IP and they don't sell to the public


PBX Battery backup systems

www.telcom1.net