With the convenience of a cordless phone and the security of a corded phone, the combination of Amplicomm's BigTel 1580 Corded Number Blocker Amplified Phone and additional handset is a fantastic way to get the best of both worlds. This phone set includes a corded and cordless handset, both with up to 35dB of amplification, an impressive one hour recording time for voice messages and a number blocker function that makes spam calls a thing of the past.