GE-28129FE2 Allows you to use your home phone to make and receive cell calls from anywhere in your home by pairing two Bluetooth cell phones with one touch Expandable up to six handsets Digital answering system has three mailboxes, recording time up to 20 minutes, English/Spanish/French voice prompts, and message counter DECT 6.0 interference-free technology, push-to-talk intercom, Call Waiting/Caller ID, three-way conferencing, backlit LCD Do Not Disturb feature, line-in-use indicator, one-touch redial, nine speed dials, mute, digital room monitoring, built-in clock and calendar