I have 6 Toshiba standard desk phones in my house (model - DKT2010-SD), and I'm trying to add a digital cordless base toshiba phone (Model - DKT2004-CB). When I push the button to switch to cordless from desk, the red light doesn't switch over. Also when I turn on the cordless phone, it flashes "aquiring link" for five seconds, than displays the words "no service."

Any suggestions on what I can do to resolve my problem?