Well CoralTech is apparently certifed and did not even know that the MIC is prgrammable. I at least suspected it was. OK, ok, so how much do you guys all charge? I take it that is what you really mean. Email or PM me your contact info. I do need on site support from time to time. BTW, I am a roadwarrior tech and have been for 32 years. I do IT and phones - lately almost all phones. Can't send that work to Inja.