What is a Virtual PBX (VPBX) extension?
Before the era of virtual phone systems, an extension was typically a physical phone wired to a phone system and assigned its own extension number. Callers who dialed that specific extension number would ring that particular extension. Today an extension is best thought of as a routing path. In other words, when a caller dials a number what path does that call take and where does that path lead? If a VPBX service provider offers you 5 extensions that means there are 5 paths a call can be routed. For example, if you purchase a system with 5 extensions you may have your main extension (Extension 0) as the auto-attendant, the traffic cop of your system as it were. It gives people options according to who they want to reach. If they dial your extension 1, you can have the system set up to find you. Usually called “find me/follow me” service, the system would ring numbers you have programmed in. It could ring your office, home office number and your cell phone simultaneously or sequentially