Yes, both Nimbata and CallRail offer a Free Trial.
Nimbata is designed for Large Enterprises, Medium Business and Small Business.
CallRail is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Nimbata Starts at $29/Month whereas for CallRail Starts at $45/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 CallRail includes CallTrackingMetrics, Invoca, Calltracks, calltrak, TeleCapture, Call Tracker, Caller Insight, Call Metrics, Track Leads and CallTracking.