Yes, both CloudPhone and OpenPhone offer a Free Trial.
CloudPhone is designed for Large Enterprises, Medium Business and Small Business.
OpenPhone is designed for Large Enterprises, Medium Business and Small Business.
Pricing for CloudPhone Starts at $24.99/Month whereas for OpenPhone Starts at $10/User/Month.
Some top alternatives to CloudPhone includes Dialpad Talk, Vonage Business, HotTelecom, Textable, iTeleCenter, Ringover, YOOTOK, Qualified, Workvivo, Simple Phones, OpenPhone and MyOperator.
Some top alternatives to OpenPhone includes Dialpad Talk, RingCentral Office, Vonage Business, Grasshopper, Dialpad Sell, Voxloud, Ringover, Qualified, VoiceLine, Workvivo and Simple Phones.