Amplicomms Bigtel 1583 DECT - Telephone set with three wireless DECT phones that offer various features for seniors and people with hearing impairments. The BT1583 has an extra loud voice volume that can be increased by +35 dB using the Boost function. The ringer volume can be adjusted to a maximum of +90 dB. Unwanted incoming calls can be blocked with various call-blocking functions. Additionally, this wireless senior phone is equipped with a simple answering machine, two hands-free functions, and memory buttons that can be operated from both the handset and the base station. The phone book can hold up to 100 names and numbers. Furthermore, the base station of the Bigtel 1583 comes with a user-friendly answering machine. To expand the BT1583, a maximum of one Bigtel 1500 type phone can be connected to the base. You can block unwanted callers if you are suffering from unwanted calls with the Amplicomms Bigtel 1583. It is possible to block all anonymous callers to decide whether to block them or only receive calls from registered numbers in the phone book.