When the operator at ext. 10 is busy on line 1, and line 2 rings in, there is a camp on tone indication in the handset. She says it is too loud, and wants it turned down, or off. I cannot find what program number that is. It may be called BOV. Is there a way to turn that off? Could someone help me with the pgm number. The system is a dk 40I.

Thanks,
Gerald

Might be what you're looking for:
https://www.sundance-communications.com/cgi-bin/ultimatebb.cgi?/ubb/get_topic/f/11/t/004169.html

That did it! Thank you.