PBX systems manage business calls through hardware or cloud-based VoIP. Traditional PBX requires on-site equipment while cloud PBX offers lower monthly costs.

Why settle for an ancient, analog PBX? The best voice over IP (VoIP) services we've tested deliver enterprise-grade phone system features for a small-business-friendly price.

Learn how VoIP gateways translate analog/digital calls into IP traffic, their key features (QoS, SBCs, security), and why ...