Finally got round to VOIP telephone line

I subscribed to VOIP telephone service about three months ago. I just got round to installing it and making it active. It was easy, I had put this off.

For those who do not know what VOIP see this video. I have my VOIP through Vonage.

It is a very clear line. I also have to change my number since my current number cannot be transferred. Before I go informing clients on the new telephone number I just want to make sure I am not missing anything terrible on VOIP.

Do you have VOIP? Is it okay for business use?

Thanks