Panasonic KXTG2357 with Handset 2.4 GHz FHSS (Frequency Hopping Digital Spread Spectrum) Talking Caller ID, Call Waiting Caller ID, Caller IQ Plus Compatible, Voice Enhancer, Light-Up Antenna with Ringer/Message Alert (handset), Reversible Handset Charging Digital Answering System - Messages are recorded on an advanced microchip for quiet operation and easy retrieval. The total recording time is fifteen minutes for most models. Intercom - Handset-to-Handset and Handset-to-Base Unit Speakerphone - Handset & Base Unit