A:AnswerYou can set up a bluetooth headset to use with these phones. There is no jack to plug headphones into, but the bluetooth headset will connect with the base to use around the house without having to carry the phone around with you.
A:AnswerI only have a cell phone and it works with that on Bluetooth. BUT
1. It does not show Voicemail Alerts
2. It does not Answer Bluetooth calls on the Answering Machine
3. Haven't been able to use two handsets at the same time with Bluetooth.
All those features seem to be linked to the landline part of the phone.
It DOES pull your contacts from your cell phone directory, keep a record of missed calls, and can dial your voicemail.