I just had comcast set up at my new apartment, with a comcast voip phone and cable internet. One of the features of this modem is that it has a backup battery so I get continued phone service for about a half hour after a power outage for emergency services, etc. I want to hook up a dlink wifi router to it, but I am unsure how to do so, especially since I don't want to screw up my phone service. Has anyone successfully set this up? If so, do I need to re-set the modem, as per the dlink directions? How do I do so if so? I just don't want to mess this setup up, and I think if I call comcast they'll insist I do it their way.