Ok, If I use the phone connected to the Obi and dial **1123 I get the voice mail. Nice, thanks.
The Obi is also connected to a phone jack in the house and I have a phone plugged into another house phone jack. This is the phone that I was trying to call voice mail from.
Now that I've been messing around with this I noticed that I can make calls with this phone, but it does not ring when I call the house with my cell, only the phone plugged into the obi rings. I though that by plugging the obi into the house all the existing phone jacks work through the obi. Can I only make call and not receive them from the house or am I doing something wrong?