Funny - we just got spam mail from Yeastar about their new PBX. Never gotten email from them in the past, so I wonder if they might be trolling these forums for users.
“Here comes the introduction of our S20 PBX, which is based on Freescare CPU and newest Asterisk 13.0.0 version. It is a small IP PBX phone system that can handle up to 20 sip trunks, 20 extension users and 10 cocurrent calls. It also includes voicemail, voicemail to email, call recording, IVR, Call queue, and many other popular features. Flexible modular design enable to support FXS/FXO, GSM, BRI, PRI interface. It comes with three-year warranty out of the box. That will be the best option for small business, small office, or even residential customers.”