Call Queue Answer Delays

We are seeing the 3-4 second delay as well and it seems to be attributed to the auto attendant delivering the call to a ring group.  We have instructed the users to wait until the Skype client indicates that it is "connected", but this causes delays in answering calls, customers get frustrated waiting for someone to answer and the experience is very frustrating for all involved.  We are able to recreate this in a test tenant very easily.  We are being told that MS has not been able to find the root cause of this, but that seems very strange given the ease of reproducing the issue.  I am wondering if anyone has configured a system with an auto attendant that is not experiencing this delay.  If so, can we get a sample attendant configuration to mimic and see if the problem is resolved?