When to use the EnableReferSupport flag in LYNC CS 2010?
Is "Transfer" failing within your new LYNC environment?
Make sure you have the correct settings for a new LYNC flag called EnableReferSupport.
Figure 1: Flowchart to decide on EnableReferSupport flag requirement
Please visit https://technet.microsoft.com/en-us/library/gg413021.aspx for more information on the powershell commands
Visit https://technet.microsoft.com/en-us/lync/gg131938.aspx for LYNC Interop Partners