Get your hands on the CT-CID801 Call Blocker for Landline Phones and enjoy the convenience of blocking unwanted calls without any hassle. This call blocker is compatible with a wide range of phone brands including Motorola, Cortelco, Emerson, GE, Southwestern Bell, Panasonic, VTech, AT T, Gigaset, AEG, and BT. It comes in a sleek black color and features a 3-inch display interface. With this call blocker, you can easily block robocalls, political calls, telemarketers, and area code calls. It supports both analog and VoIP compatible phones, cordless phones, fax machines, and landlines. The CT-CID801 Call Blocker for Landline Phones is designed to make your life easier by giving you the ability to block unwanted calls with ease.