The user-friendly Aastra 620d is the high-end mobile phone for the professional. Its large TFT colour display provides clear graphic displays and ideal legibility even under difficult light conditions. The display size offers the perfect conditions for intuitive menu guidance and ergonomic operation. Many freely programmable keys support the simple navigation and the use of different lines. Equipped with a Bluetooth interface for a cordless headset, the Aastra 620d enables maximum freedom of movement. The high-quality lithium-ion battery can be charged via the USB interface, independently of the charging bay. The headset socket remains accessible, so calls can still be made via the headset while charging is in progress. An optional power battery is available for operating times of up to 200 hours in standby mode.