Building a system is easy! Simply plug the Motorola ML25260 speakerphone base into a phone jack and wirelessly connect up to 10 cordless handsets. Line status indicator - see if your co-workers are on the phone Name/Number directory - store information for up to 99 contacts Expand your system - up to 10 total accessories can be added to the system Caller ID/Call Waiting - See who is calling before you answer a call