I have CUCM connected with Exchange SP1 RU1, all working fine. I decided to create Call Answering Rule in OWA to allow users to press "1" for "Urgent Matters", and leaving the rest as default. So, now when they call, I have default message playing, with added "for urgent matters, press 1" . When callers press 1, systems says "One is not valid", and right after "Ok, dialing...." and actually dials the number. It also seem to be sporadic - sometimes, it doesn't give that "One is not valid" error. Is it a known issue, or I messed up somewhere during rules setup?