Yes, both Nimbata and calltrak offer a Free Trial.
Nimbata is designed for Large Enterprises, Medium Business and Small Business.
calltrak is designed for Medium Business and Small Business.
Pricing for Nimbata Starts at $29/Month whereas for calltrak Starts at $29.95/Month.
Some top alternatives to Nimbata includes CallTrackingMetrics, CallRail, Calltracks, calltrak, TeleCapture, Call Tracking Pro, Call Tracker, Caller Insight, TrackDrive and CallTracking.
Some top alternatives to calltrak includes ResponseTap, AvidTrak, Calltracks, CallView 360, TeleCapture, Call Tracking Pro, Call Tracker, Caller Insight, CallTracking and FreeCallTracking.AI.