1General informationGeneral informationAastra 610d, 612d- Aastra 610d : LC-display (2“, 176 x 160 dots, monochrom)- Aastra 612d: TFT-Colour display (2“, 176 x 220 dots, 65536 colours)- 3 softkeys (2 of which are programmable) / 2 sidekeys (+/-)- Caller list for 30 entries- Redial list for 20 entries- Local phone book for 200 entries- Connection socket for headset- Safety class IP 50Aastra 620d, 622d- TFT-Colour display (2“, 176 x 220 dots, 65536 colours)- 1 hotkey / 3 sidekeys (programmable)- 3 softkeys (2 of which are programmable)- 2 programmable navigation keys- Caller list for 50 entries- Redial list for 30 entries- Local phone book for 200 entries- Headset connection via cable orBluetooth- Mini USB connection- microSD-Card Interface- Safety class IP 50Aastra 630d, 632d- TFT-Colour display (2“, 176 x 220 dots, 65536 colours)- 1 hotkey / 3 sidekeys (programmable)- 3 softkeys (2 of which are programmable)- 2 programmable navigation keys- 1 emergency call key (SOS)- Caller list for 50 entries- Redial list for 30 entries- Local phone book for 200 entries- Sensor for "Mandown", no-movement alarm, escape alarm- Headset connection via cable orBluetooth- Mini USB connection- microSD-Card Interface- Safety class IP 65 (dust and water spray protected)