This problem of calls going straight to voicemail has happened only once to me . . . (that I know of!) I don't think that our settings have anything to do with it though. A few days ago Bobby B updated his earlier post and said they think they have found the source of the problem and are actively working on a fix. This is obviously happening to some more than others, but I'm sure a solution will be forthcoming.
Telo w/ 2 Ooma Handsets
Annual Premier Subscriber
Annual Premier Subscriber