Yes, both Callback24 and Callback Tracker offer a Free Trial.
Callback24 is designed for Large Enterprises, Medium Business and Small Business.
Callback Tracker is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Callback24 Starts at $49/Month when Billed Yearly whereas for Callback Tracker Starts at $14/Month.
Some top alternatives to Callback24 includes ResponseTap, Calltracks, CallView 360, calltrak, TeleCapture, Call Tracker, Tracking Sales Calls, Calls to Clients, LiveCall and Callback Tracker.
Some top alternatives to Callback Tracker includes InstaContact, ProspectBoss CRM Dialer, Hello Hunter, CallCenterHosting Predictive Dialer, Callspot, LiveCaller, Click2Contact, LiveCall, LimeCall and Calldrive.