SV9100 with some single line sets, NEC model DTH-1-1. These have 4 one-touch memory keys on the phone. But I'm having trouble getting the keys programmed. I can do it from the phone, and that seems to take ok. But I'd like to program the keys from PC Pro or Web Pro. Anything I put in 15-07 does not show up at the phone. Checked COS and should be ok.

Thanks for any ideas.
Jim