Yes, both iTeleCenter and VoIPstudio offer a Free Trial.
iTeleCenter is designed for Large Enterprises, Medium Business and Small Business.
VoIPstudio is designed for Large Enterprises, Medium Business and Small Business.
Pricing for iTeleCenter Starts at $19.95 whereas for VoIPstudio Starts at $4.99/User/Month.
Some top alternatives to iTeleCenter includes Dialpad Talk, VoIPstudio, Vonage Business, Textable, Voxloud, MightyCall, Ringover, YOOTOK, CloudPhone, OpenPhone and MyOperator.
Some top alternatives to VoIPstudio includes Voiptime, CloudTalk, Dialpad Talk, Vonage Business, Vodia PBX, PBX Plus by 500apps, Voxloud, MightyCall, Continent Telecom IP PBX, iPlum and OpenPhone.