Thanks to all of you sincerely but I'm sorry, let me see what it's clear to me at this point:

DrPbx: No, I do not have any moh module (neither external nor attached to the card)

fifty5footer: J25, R?S pair means connector J25 on the back-plane, using red/slave pair, is this correct?

johnp: I'm telling you what says on form # 18; what does V/G mean? so assignment to 2-03-04 is incorrect? is that what you mean?

Thanks again.