1. auto answer
2. auto hangup
3. call screening
The unit seems to have some minor issues, and it would be nice to see if these settings would correct them. A more advanced manual that would answer these questions would also be nice, but that's an issue for another time.
Auto answer - the call is answered when the HD3 is lifted out of its cradle.
Auto hang up - the call is terminated when the HD3 is placed into its cradle.
Call screening - if the call goes to voicemail you can hear the message as it is being left and can answer it if you want to talk to the caller.
Telo with 2 Handsets, a Linx, and a Safety Phone
Telo2 with 2 Handsets and a Linx