No... I am afraid the current state of "cordless" phones is aimed at K-Mart or Dollar Store shoppers when compared to cell phone technology. I have been looking years for a cordless that can do just two things my cell can do (bluetooth headset pairing and phone number import from Address Book), but connected to a land line. They don't exist. I guess phones designed for use without the $50-100/month contract are all based on 20th century technology.
The closest thing I have found is the Calisto Pro from Plantronics... although it is pricey ($250), only supports windoze at this time, and there are many reports the software is not all it could be (not a big surprise from a headset maker). But kudos to them for at least trying to make a higher tech cordless.
The only answer at this point is to put a scaled down version of windoze on your Mac and export to Outlook via vCards and then upload to the phone. I am guessing you don't really need syncing as who wants to enter names and phone number through the arcane interface of a cordless phone.