This project tend to be cost effective for businesses with less than 5 employees.
The Business VoIP provider plans for small offices and home offices tend to be very similar to the residential VoIP service plans and have similar features.
Most VoIP residential providers have one or two business VoIP solutions at a relatively small premium to their respective residential VoIP plans. Extra services are often included such as a toll free number and a dedicated fax line.
The Business VoIP providers give you the same hardware you would get for a residential VoIP plan, this being the ATA. This is responsible for converting the analog signals from a regular telephone into a format acceptable for transmission over the internet. The ATA normally handles up to 2 telephone lines but if a fax service is required one of the ports is typically needed for the fax machine since it needs its own dedicated number and phone line.
A typical home office or small business VoIP solution is highlighted in the following diagram. Note that additional phone lines and PCs can be added simply by connecting them to the LAN side of the router.
