Cheap as old but still works: no box, no instructions but just plug in phone socket and in electrical socket.
BT Phone Black
Sxhlseller Small Lightweight Phone High Fidelity Audio GSM 2G 3G 4G SIM CARD BT for IOS BT for (Black)
BT Everyday Cordless Landline Phone Black, Single Handset, Call Blocker, 20, BT
RJ11 to BT Landline 2.8m Telephone Cable Modem FAX Plug BT Socket - Black
