[Digital Answering Machine] -This cordless phone system includes a digital answering machine that has a LED message counter, and up to 30 minutes of digital recording time including incoming messages, outgoing announcements, and memos. [Control nuisance calls with Call Block] - Calling Number Display Call Block allows you to block unwanted PRIVATE and UNAVAILABLE calls. The Call Block List allows you to block incoming calls from up to 100 specific user programmable numbers. [Volume Booster] - Volume Booster amplifies incoming sounds to enhance the clarity and loudness of the voice on the handset earpiece. Simply by pressing the one touch button on the handset, the user can adjust the receiving volume to suit their individual requirements. Ideal for hearing-impaired users, or for those who prefer a higher volume level on the telephone. [Access phonebook & logs for quick calls] - 100 names and numbers phonebook directory. 20 names and numbers caller ID records. 10 last called number records. [Backlit screens & keypad for better visibility] - High contrast text on the blue-white backlit displays on handset screen makes it easy to read incoming caller ID or call history records. Plus, the lighted handset keypad allows for easy dialing in low-light conditions.