Systems and methods are provided for routing data messages between a
cellular telephone and a cordless telephone system having a plurality of
cordless handsets configured to communicate with a single cordless base
station when in range. Messages are received at the cordless base station
via a first radio frequency transfer protocol. The message is transmitted
to the cordless base station from the cellular telephone after the
cellular telephone has received the message from a cellular network. The
cordless base station transmits the message to a desired one of the
plurality of cordless handsets via a second radio frequency transfer
protocol. The desired one of the plurality of cordless handsets is chosen
based on predetermined message routing settings.