Transfer up to 6,000 phonebook contacts from up to 4 cell phones - 1,500 phonebook contacts per cell phone Message Manager - Organizes incoming messages and Caller ID information into an easy to read list Corded Handset - Corded phone handset works even during power interruptions Headset Jack and Belt Clip Included - 2.5mm headset jack for use with optional headset ECO Mode power and battery management - Less frequent charging Caller ID/Call Waiting - (Requires a telephone company service subscription) 50 Number Caller ID Memory - Stores 50 names and numbers in Caller ID memory for easy access 200 Name & Number Directory - Store frequently dialed numbers in an alphabetically sorted database for easy, one-touch dialing Last 5 Number Redial Handset Speakerphone - Allows you the freedom to use the handset as a speakerphone for handsfree convenience Backlit Keypad and Display Intercom or Call Transfer Between Handsets Expandable - Up to 12 handsets with one phone jack Hearing Aid Compatible - Meets all of the requirements for compatibility of inductively coupled hearing aids Silent Mode - Select up to 9 hours of silence (in 1 hour increments) or keep ringers silent until you want them back on Call Blocking - Allows you to block unwanted calls from up to 20 telephone numbers including private and unknowns Rechargeable NiMH Battery Pack Voice Mail Waiting Indicator light - If a caller leaves a message, an LED illuminates on each handset to alert you a message is waiting to be heard Maximum Voice Security Wireless Network Friendly Trilingual Menu Displays and Voice Prompts - English/French/Spanish Compatible with DRX100 Range Extender - Connect up to two Range Extender units per system