Clamp down on spam calls from telemarketers by blocking specific numbers (or entire groups based on the first 2 to 8 digits) or withheld numbers. Just press the Call Block key while the phone is ringing or during the call to block the number. This function requires subscription to the Caller ID service offered by your provider/telephone company. It’s equipped with a 1.4 inch LCD screen display which shows you caller IDs more clearly, as well as enhanced receiver volume, allowing you to hear the other person’s voice with clarity (it’s around twice as loud as standard Panasonic DECT telephones). Simple layout & enlarged buttons on the handset make it easier to use too. Built with resilience in mind, it can sustain minor impacts, so is more resistant to breakages if it should be dropped accidentally. Features: Easy Nuisance Call Block with Dedicated Call Block Key User-friendly Shock resistant Enhanced receiver volume Modern & functional design Specifications: Dimensions: H