A system and method for routing selected phone calls to a user having a plurality of communication resources is disclosed. Background information of a caller is identified. A context of the user is postulated based on available information. The user's communication resources are identified. A location of the user is estimated. A cascaded ringing program for routing the phone call to the user is identified based on the background information of the caller, the device type of the user's communication resources, the postulated context of the user, and the estimated location of the user. The phone call is then routed using the cascaded ringing program.