Nextiva alternatives

The Nextiva cloud-based phone system is an all-inclusive unified communication (UC) solution designed for small to large enterprises. Business VoIP phone systems trusted by more than 90000 companies. Powered by the leading cloud PBX VoIP platform, Nextiva is rated the best business VoIP ...
Nextiva alternatives are:
RingCentral, 8x8, Fonality, Vonage, Jive