The primary DN on phone A is busy with phone B. When phone C calls phone A, the call rolls over to the DN on key 1 on phone A, but the display on phone C (the phone calling phone A) does not display that phone A is busy. It only shows that extension that is being called. On phone A (the phone being called) however, displays that phone C is calling the DN and "BUSY". The CLSs are CPNA, DNDD, and TDD, and LHK 1 on all of the phones. Phone C will only display "BUSY" when the call is forwarded to voicemail. How can the "BUSY" be displayed immediately? And why is "BUSY" being displayed on the called party? Is there a CLS that allows the called phone to display this status on the calling phone? Or is the configuration in the CPND data block? Thanks for your help.