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 ...

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

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.