We have an auto-attendant set up and for overflow handling we do a transfer to an external phone number. What we've found out however is that if the caller has their caller ID blocked (i.e. comes in as an anonymous call) the transfer fails saying the call cannot be completed. After working with support on this for quite a while they determined that this is by design. Even the MS support rep flat out told me he couldn't believe this was the way it worked! Does anyone have any way of working around this? This is the support line for our company, so it's kind of imperative that our callers can get through. Thanks!