Yes, both MightyCall and Vonage Business offer a Free Trial.
MightyCall is designed for Large Enterprises, Medium Business and Small Business.
Vonage Business is designed for Medium Business and Small Business.
The starting price of MightyCall begins at $15/user/month when yearly, while pricing details for Vonage Business are unavailable.
Some top alternatives to MightyCall includes CloudTalk, RingByName, Dialpad Talk, VoIPstudio, RingCentral Office, Vodia PBX, Grasshopper, Voxloud and Ringover.
Some top alternatives to Vonage Business includes CloudTalk, RingCentral Office, Jive Voice, 4PSA VoipNow, Alianza, Voxloud, MightyCall, Ringover, Voxbi, iPlum and Comcast Business VoiceEdge.