Kyocera KM4035 Service Message C6050

Question

I have received the following message on our Kyocera KM4035 machine: "System Error Call Service (picture of a telephone with *********) C6050". Can you tell me what is wrong with the machine? All the lights (copier, printer,scanner)are on. When you turn the machine off and then back on, the finisher portion makes a strange noise. Please help if you can!