Features: DECT Zero Blind Slot Digital Technology 1 to 4 Line Capability Extendable Range Push-to-Talk Intercom—from base to handset from handset to handset Fully Integrated Digital Answering System 1 Additional Handset and Charger Included Expandable System up to 10 handsets (Accessory Handset: SB67108) Dial-in-Base Speakerphone Handset Speakerphone(s) 10 Speed Dial and 10 Intercom Number Locations 100 Name/Number Phonebook Directory 3-Party Conferencing 4 Lighted Line Indicators Blue Lighted Keypad on Handset Chain Dialing Compatible with TL7600 Cordless Headsets English/Spanish Setup Menu Handset, Speakerphone, Headsets and Ringer Volume Controls Headsets Compatible (2.5 mm jack) Hold Large Blue Lighted Display Last 10 Number Redial Music on Hold Mute Page, Intercom and Call Transfer Between Stations Selectable Ringer Tones Caller ID: 50 Name/Number Caller ID History Caller ID/Call Waiting Compatibility* New Call Indicator Remove Button Voicemail Waiting Indicator Answering Systems: 180 Minutes of Digital Recording Time Auto Attendant on Each Line Call Screening/Intercept Individual Voicemail Boxes for Each Extension Memo Recording Message Retrieval from Handsets Message Time/Day Stamp Remote Access with Programmable Options Voice Prompts Music on Hold: Turns On/Off Plays pre-recorded or create your own music 2 options for creating your own recording to play as music on hold (up to 3 minutes) This recording replaces the pre-recorded music. 1. You can use a standard 3.5mm to 3.5mm audio cable (sold separately) to copy a recording from an audio device