Specifications Dimensions: 240 × 210 × 100 mm, g Display: Illuminated graphical LCD, resolution: 135 × 65 dots, 82 × 40 mm Phonebook: 200 names SMS text memory: 20 last received messages (160 characters/per message), 20 last sent messages (160 characters/per message) Calls memory: 10 last dialed calls 10 last received calls 10 last missed calls Ringing melodies: 10 unique melodies SMS typing: Built-in “QWERTY” keypad Fast dialing: 6 memory keys Hands free calling: Built-in speaker and microphone Operating temperature: -20 °C to +55 °C; 25 to 85% humidity AC power adaptor: 100 – 240 V AC/50 to 60 Hz; 12 V/1 A DC Back up battery: NiCD battery, 900 mAh GSM system: 900/1800 MHz dual band system, power class 4 (2W@900MHz, 1W@1800MHz), echo cancellation and noise reduction, full GSM software stack, complete shielding and interfacing. Complies with Health and safety: EN 60950 class II, EMC: EN 301489-7, EN 55022, EN 50130-4 Radio parameters: ETSI EN 301419-1, EN 301511; radio equipment: class 1, Can be operated according to T/R 20-08 The GDP-02 GSM Desktop Phone is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.