Yes, both Dixa and Nextiva offer a Free Trial.
Dixa is designed for Large Enterprises, Medium Business and Small Business.
Nextiva is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Dixa Starts at $39/User/Month whereas for Nextiva Starts at $18.95/User/Month when Billed Yearly.
Some top alternatives to Dixa includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Zendesk Talk, Freshservice, Freshdesk, ClickDesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Help Scout, HelpdeskEddy, LabiDesk and Zendesk Chat.
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.