VTech IS8151-5 Super Long Range 5 Handset DECT 6.0 Cordless Phone for Home with Answering Machine, 2300 ft Range, Call Blocking, Bluetooth, Headset Jack, Power Backup, Intercom, Expandable to 12 HS :
Vtech I6765 5.8 GHz Cordless Phone with Digital Answering System | Initial Checkout - YouTube
Vtech i5871 5.8 GHz digital expandable cordless phone system