Warm Reminds? This caller id desktop landline phone displays the caller number only, cannot display the caller name. It is without the phonebook function. 1. Automatic checking of FSK/DTMF dual system. 2. Easy to install: Can be placed on the desktop. 3. Maximum 50 groups for incoming call record.. 4. Maximum 14 groups of outgoing call record. 5. Real date, week, and caller ID display. 6. Blue backlight for LCD. 7. 5 levels of LCD brightness adjustable 8. Flash time adjustable. 9 Area code and PABX code setting. 10. P/T dialing mode adjustable. 11. Redial Pause Flash and hold function. 12.7 groups of one touch memories 13.10 groups of two touch memories 14.3 grades of handset volume adjustable 15.3 grades of speaker volume adjustable 16.Incoming call LED indicator 17. In use led indicator Description: 1. High quality ABS material, durable for long service life. 2. Powered by telephone line, no need to install battery, energy saving and environmental protection. 3. Color: Black/White 4. Power Supply: Telephone Line Power Supply