Product Details 2-Line 50 name and number phonebook directory DECT 6.0 digital technology Full-duplex handset and base speakerphones Caller ID/call waiting - stores 30 calls (Use of caller ID feature requires a subscription from your telephone service provider) Expandable up to 12 devices (2 devices can be cordless headsets) with only one phone jack Digital answering system voice guide with up to 22 minutes of recording time, the digital answering system grabs calls when you can't Smart Call Blocker - Say goodbye to unwanted calls. Robocalls on your landline are automatically blocked from ever ringing through - even the first time. You can also permanently blacklist up to 1,000 numbers with one touch Table- and wall-mountable Mailbox for each line Large backlit base display Intercom between handsets and base units Conference between an outside line and up to 2 cordless handsets Trilingual prompts - choose between English, Spanish and French 1-Year Limited Warranty