I am using a Siemens Gigaset system along with a Siemens M34 USB dongle, which allows you to manage directory form your PC and Skype etc, but you have to do it via outlook, which is painful as well. Personally, I found google contacts to be the most useful across platforms that can be a feature for home telephone that can be further explored. There are later Gigaset phones that allow you to simply copy your sim contacts from your mobile phone to your home phone or batch send it via bluetooth, but I found Siemens phones are not very popular in the US, which it strange because I found Gigaset phones are far more superior in call clarity, os friendliness and have better industrial design and build quality, and runs on standard AAA batteries instead of those battery packs.