This guide was reviewed by a Business News Daily editor to ensure it provides comprehensive and accurate information to aid your buying decision. To determine which private branch exchange (PBX ...

Some vendors require you to commit to a specific ... VoIP phone systems supplanted traditional PBX phone systems because they are less expensive and more versatile. Even today's residential ...

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.