I received an invite for Google Voice recently, and I've set it up. I chose to use my own cellphone number to use instead of choosing a new number for Google Voice. I set up the voicemail, and if I call my voicemail number it works and asks for my PIN to access it. I can even login into my Google Voice account online. Now, the problem is that I tested my voicemail and it did not work. I used my landline phone here at home and called my cellphone. I didn't pick up the call on the cellphone so that I could test my voicemail if it worked. After all the rings, there was just a busy tone at the end. I did not get any option of leaving a message when I tested to call on my cellphone. Can anyone help me out with this?