Yes, both Nimbata and Caller Insight offer a Free Trial.
Nimbata is designed for Large Enterprises, Medium Business and Small Business.
Caller Insight is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Nimbata Starts at $29/Month whereas for Caller Insight Starts at $25/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 Caller Insight includes Calltracks, Callcap, CallView 360, calltrak, TeleCapture, Call Tracking Pro, Call Tracker, Tracking Sales Calls, CallTracking and Trailhub.