hello my customer has an old VIe and i want to let it ring over the horn. my manual says it will work if set to loud ring over night service. it also says ext ten needs a night transfer key. but under flexible button progaming it doesnt give me that option. does one of the other buttons on ext 10 double as a nt button. thanks dave

It will use the DND button on sta 10 if programmed correctly in Prog 03 button 09.
Don't forget to check out Prog 02 button 02 and Prog 03 button 08.

got it! have a good weekend! dave