Yes, both ContactCentral and Nextiva offer a Free Trial.
ContactCentral is designed for Individuals, Freelancers, Medium Business and Small Business.
Nextiva is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Nextiva begins at $18.95/User/Month when Billed Yearly, while pricing details for ContactCentral are unavailable.
Some top alternatives to ContactCentral includes and Nextiva.
Some top alternatives to Nextiva includes uContact, Call Center Studio, Grasshopper, Dialpad Contact Center, Vonage Contact Center, RingCentral Contact Center, ipSCAPE and OmniOMS Customer Communication Management Suite.