Hi, I know the SPA 942 is not made or supported any longer. Or supported by 3cx support. But, I know it is a generic sip device. I assume that I would just use the URL of the 3cx --- name.3cx.us extension and password (generic Sip ) Running newest 3CX (will download) Free trial version. . I am moving a client from Elastix and they said yes as long as they don't need to new phones. The hope is they upgrade later to new phones and license. But If I cant move them its a dead deal. Having issues with Elastix and seems to be good timing to migrate them over to 3cx. HELP. PS - Hate I heard that 3CX does not support really generic sip which is very limiting for such a great system. I also have a client who wants a Cordless phone and Panasonic is my preferred not yealink on that.