It supports landline desk phones, analog fax machines ... have almost wholly replaced on-site PBX services for small businesses. KSU systems are cheaper than conventional PBX yet have limited ...

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.

Discover why (and how) a VoIP gateway is one of the few truly plug-and-play devices in business communications.