Belgacom Twist 599. Personalization: Menu. Phonebook capacity: 100 entries. Display: LCD. Base dimensions: 69 x 101 x 129.5 mm, Handset dimensions: 30 x 56.3 x 174 mm, Handset weight: 138.4 g. Operating temperature range (T-T): 0 - 35 °C, Storage temperature range (T-T): -20 - 45 °C, Operating relative humidity range: 0 - 95 %