Best business phone systems of 2020: office telecoms solutions

By Tech Radar
RingCentral Office
"Ring Central is the best business phone system out there - it's easy to use yet powerful and feature rich"
8x8 X Series
"The phone system for small and medium business"
Aircall
"VoIP call center and CRM solution"
Avaya OneCloud
"The cost-effective and scaleable VoIP suite"
Vonage Cloud
"The traditional cloud phone system"