A system and method for implementing extensions for a cordless telephone system. A menu configured to receive user input is displayed to a user for setting a configuration for routing incoming communications of the cordless telephone system to one or more of a plurality of handsets. An identifier of a caller is associated with one or more handsets based on the user input. The handsets wirelessly communicate through a base station utilizing a singe phone number. A call is routed to the one or more of the handsets in response to determining the identifier is associated with the call.