Yes, both INVOX and Calls to Clients offer a Free Trial.
INVOX is designed for Large Enterprises, Medium Business and Small Business.
Calls to Clients is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Calls to Clients begins at $58.33/Month when Billed Yearly, while pricing details for INVOX are unavailable.
Some top alternatives to INVOX includes ResponseTap, Retreaver, Calltracks, CallView 360, calltrak, TeleCapture, Call Tracker, Tracking Sales Calls, Track Leads and Calltouch.
Some top alternatives to Calls to Clients includes Retreaver, AvidTrak, Calltracks, CallView 360, Outleads, calltrak, TeleCapture, Call Tracking Pro, Call Tracker and TrackDrive.