Follow me / Find Me

Here is a question someone hopefully can shed some light on for me. I am using the Find Me / Follow Me
feature which works fine. The way set it up is that it rings the desk phones and the Mobile at the same
time. To make sure messages end up in the third lane mailbox and not in mobile phone I enabled the confirmation option. Here is where I have the issue, it requires now the confirmation on the call but not only on the Mobile but also on the desk phone. Since the desk phone is not forwarded why does it require the acceptance, it should just ring like it normally wood and connect on pickup. Am I missing any settings or is their a way to change this behavior ?

Thanks