I wrote the subject article awhile back and hope it may helps some with any business decisions they may be facing
Here's a brief snippet.......
"It is no secret that communication is key to survival for small business. The advantage to small busineses of using a VoIP solution is that the market is very competitive. Analyzing phone service is often a real headache. However, unreliable line quality, which results in poor customer service and huge monthly bills are even worse. In the end, doing your research will pay dividends for your business."