I have 2 years 7270 my own called that much a lightning victim. Now I have decided for 7390. She was quick to set up and worked without any funny business immediately. The software is of the 7270 very similar and therefore not introduced me to any puzzle. The DECT range is just as moderate as in the old box. Here I have also had the HAMA repeater in use. This done now at the 7390 reliable his service. The wireless range is good with us. Although the EC to the DG reichts not, here I have created with the AVM repeater remedy. Phone number of the 7270 I was able to take from a backup in the 7390. Unfortunately, you can not affect the allocation of internal telephone numbers. I would have liked to forgive themselves, but they are automatically assigned. Or I'm too stupid. Nevertheless, I am still happy with the AVM products.