Part of the problem is that there is no information given about how to set up the VMB, nor how to use call forwarding given at installation. Furthermore, their website is very uninformative.
I managed to set up my VMB (greetings, password, etc.), then tried to leave myself a message from another phone. When I went to retrieve the message, there was no audio content whatsoever, although the system prompted me to save or delete, etc.
Does anyone have a toll-free number for these bozos? Their so-called "live agent" is not. Instead, clicking the link takes you to "Magic Fix," an automated troubleshooting/remote repair system.
I like the call quality and price, but so far the rest has been problematic to say the least.
Regarding echo: If you are using your PC speakers and microphone, rather than a telephone handset or headphones, you will get echo from audio feedback if nothing else. As is the case with Skype, if you get an echo, try replacing the PC speakers with a standard headphone set. Or plug a traditional telephone into the jack on the Magic Jack box. HTH.