Top features:- Nuisance call block to avoid unwanted contact - Self-standing handsets with convenient base units- Caller ID lets you see who is calling you - Eco mode to reduce power consumption Nuisance call blockThe Panasonic KX-TGC424EB Cordless Phone with Answering Machine helps you to avoid unwanted calls from people such as telemarketers. You can block any specified number, as well as any head string of two to eight digits.Self-standing handsetsIn addition to the base unit's large cradle, you can stand all four of the handsets upright anywhere in your home. This means that you can see the screen and hear the rear speakerphone with ease wherever you are.Caller IDAt a glance you can see who is calling you. The caller information is displayed on the screen, including their name if they are stored in the phonebook.The handsets can also be used as an alarm clock, with an option to set the alarm to ring once or daily. There is also a snooze option for when you need those extra moments