No, it only shows up on the the phone that is the primary line. If the line is a virtual line it will only show on the first phone that was programmed. This is only when the line is ringing. After the callmis answered. then the caller id shows. On virtual lines, to see which is the primary phone for that line use the DIS STSV command. This will show all the phones that have the virtual line assigned. The first one is the primary phone.