Uniden TRU8880-2 5.8 GHz Digital Expandable Cordless Phone System with Dual Handsets and Answering System (Black/Silver) 5.8 GHz digital signal; expandable to 10 handsets Digital answering system with conversation recording capability Base and handset speakerphones, 4-way conferencing, room/baby monitoring Call transfer between handsets, walkie-talkie function 100 caller ID/memory dial locations; tri-lingual menu options