Some calls come in ok. Others get diverted to a generic voicemail ( not one I set up - I haven't got to that yet ). Obviously I have no idea of how many calls i'm missing . Sometimes during the day if i remember, I will pick up the phone to check it still goes - and it is completely dead - sometimes I ( think I ) fix it by rebooting. The caller ID won't work ( and this is feature I can't live without - well ...maybe ).
I'm using a cisco SPA100 ATA . Can't think of any other info ...oh, my laptop is black and shiny if that's any help .