Yes, both Exotel and Nextiva offer a Free Trial.
Exotel is designed for Large Enterprises, Medium Business and Small Business.
Nextiva is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Exotel Starts at $1,000 whereas for Nextiva Starts at $18.95/User/Month when Billed Yearly.
Some top alternatives to Exotel includes Nextiva, Knowlarity, CloudTalk, Servetel, Call Center Studio and TelebuHub.
Some top alternatives to Nextiva includes uContact, Call Center Studio and OmniOMS Customer Communication Management Suite.