I installed my first Grandstream back in December 2015. The original software didn't have any hospitality features. I tried Yeastar for a 2016 sale that didn't really get installed until 2017 (family tragedy in-between). The problem with Yeastar is the hospitality software requires the Hotel software for front-desk wake-ups and check-in and out. Not very cost-effective for the 16 room property :-). In the meantime, Grandstream added their hospitality app which can be set from a phone or a PC as part of the basic system. Now my 16 room property comes in at sub $1000 and I still get SIP trunk residuals.

I expect to fire up the UCM in a motel by mid-November It's working great on my test bench. For extra fun, I can change my outbound CID by logging into the extension. Not that I'd ever do that LOL