Communication support system for remote telephone controlled data processing device

A communication support system includes a command signal detection unit (6) which detects a command signal sent by a telephone unit (1), the command signal indicating one of a plurality of telephone services. A telephone service recognition unit (11) determines which of the plurality of telephone services is indicated by the command signal from the telephone unit. A telephone service processing unit (7) executes a telephone service processing for the telephone service determined by the telephone service recognition unit (11), the telephone service processing unit starting execution of the telephone service processing in response to control data from the command signal detection unit (6).