How many phone lines do I
need with VoIP?

There is a paradigm shift when talking
about phone lines via an internet
phone service company.

For example a business has four standard
analog lines, one of which is the publicly
documented phone number. The other lines
are for roll-over. So a maximum of 4 lines are able to be used for in-bound and out-bound phone calls. The business must pay for each line along with phone usage from their phone company.

With IVSComm internet based phone service, while you still have a public phone number, you are no longer bound by the number of phone lines. Every in-bound call will ring and every out-bound call will get a ring tone. No matter how many calls are already being managed.