Yes, both ZIWO and Nextiva offer a Free Trial.
ZIWO is designed for Large Enterprises, Medium Business and Small Business.
Nextiva is designed for Large Enterprises, Medium Business and Small Business.
Pricing for ZIWO Starts at $109/User/Month whereas for Nextiva Starts at $18.95/User/Month when Billed Yearly.
Some top alternatives to ZIWO includes Nextiva, TalkDesk, Calabrio One, CallTools, uContact, CloudTalk and Call Center Studio.
Some top alternatives to Nextiva includes uContact, Call Center Studio and OmniOMS Customer Communication Management Suite.