Google Voice: ""The number or code you have dialed is incorrect."

[gianthobbit]

I call my cell from time to time to test my GV voicemails as I change them when I am out of town etc. Once in a while I get a ""The number or code you have dialed is incorrect." message when I call. My cell rings fine so I know its dialed correctly.

I tried it again a few minutes later and it worked fine. This has happened a few times now... anyone else have this happen? Any fixes?