5.8GHz Frequency Hopping Digital Spread Spectrum (FHSS) 1Digital Answering System (15 minute recording time)Call Waiting Caller ID 2 Dual Speakerphones (Handset & Base)Up to 8 Multi Handset Capability Wireless Network Friendly Clarity Booster Lighted Handset Keypad 89 Channels NiCD Battery Conferencing Join In/Privacy 4 Line Backlit LCD on Handset and Base Unit 50 Caller ID Memory and Dialer 2 Dual Keypad Navigator Key50 Station Phone Directory/Dialer Stations Phone Directory Sharing 2 Way Intercom Handset Locator Wall Mountable Hold/Mute (Base Unit/Handset) Volume Control (Base Unit) Up to 6 Selectable Ringtones Headset Jack Lighted Handset Keypad Low Battery Indicator Flash button/Pause Redial (Last 5 Numbers Dialed) Handset Volume Control (Low/Med/Hi) Ringer Control (Off/Low/Hi) Rec. Time (1min/2min/3min/Ann.) Call Screening Up to 3 Mailboxes Voice Prompts & Time/Day Stamp Pre Recorded OGM Flash memory Remote (Handset) Tone Remote (DTMF) OperationRemote Turn On/Off All/New Message Playback All/Individual Erase Skip/Repeat Tollsaver Memo Record Slow TalkTM Message Playback Color Platinum1 Range based on open field testing. Actual range varies and depends on physical and atmospheric conditions.2 Requires subscription to telephone company service.