Just for the record, everything works flawlessly, EXCEPT that for some reason, my phone system only allows me to set 411-413 to 5, 10, or 15 seconds. In order to get 5 rings I had to add a 10 seconds delay on the TVS itself - which results in me waiting 10 seconds before i can log into voicemail to check messages. It is livable, but is that something software can fix? I have Y581.