We are a new user of RingCentral and just moved into a new office.  Only one office has coax capability because it has the wireless modem/router and all the other office is purely using wireless internet.  In the office with the router, we have a Polycom desktop phone.  Everyone else is using their cell phones as their primary phone.  

I would like to provide each office/user with their own desktop phone which will be higher quality than using their cell phones.  Do they manufacture desktop phones that can be used via wireless internet and, if so, does RingCentral support them?  If so, which wireless desktop phones are recommended.

Thanks,  Curtis