Some office are still using analog lines and may only have one phone line, other offices have phone systems while many small business are operating using cell phones.
Many small to medium size companies are looking for phone systems that offer the same functionality that more expensive phone systems, such as individualized voice mail. With VOIP it is possible for a small business phones system to sound like a fortune 500 companies phone system.
First lets explain what VOIP is:
VOIP is an abbreviation for Voice Over Internet Protocol, which in English means phone service through the Internet. Having a reliable internet provider is essential for VOIP to work and will enable you to receive phone service through your Internet connection.