BT 3580 Nuisance Call Blocker Instruction manual. + 44 hidden pages. Unhide for 1. You can only view or download manuals with. Sign Up and get 5 for free. This is the Instruction manual for the Argos Product BT 3580 Cordless Telephone with Answer Machine - Twin (531/6823) in PDF format. View and Download BT BT3560 user manual online. Digital Cordless Phone with Answer Machine. BT3560 answering machine pdf manual download.This is the Instruction manual for the Argos Product BT 3580 Cordless Telephone with Answer Machine - Quad (541/9933) in PDF format. BT accepts no responsibility for damage caused to your BT3580 if you use any other type of batteries. Page 4. Where to put your phone. • Place the base within. BT 3580 Cordless Telephone. Manuals and User Guides for BT 3580 Cordless Telephone. We found 3 manuals for free downloads: instruction manual Find the manuals and user guides you need for all your BT products and services. Get help with everything from phones to BT TV to baby monitors. Find out about the BT3580 Nuisance Call Blocker digital cordless phone with answer machine. Available in single, twin, and trio packs.