Symptoms
Assume that you search for a user to transfer a call to in a Microsoft Skype for Business installation that has April 14, 2015 update installed. When you press and hold (right-click) on the user in the Transfer Call window, and then you select one of the available options (such as Work, Skype call, or Voice Mail), the right-click menu disappears but no calls are transferred. Additionally, no error messages are displayed.
Resolution
To resolve this issue, install the February 9, 2016 update (KB3114732) for Lync 2013 (Skype for Business).
Note Lync 2013 was upgraded to Skype for Business in April 2015.
Workaround
To work around this issue, select Voice Mail, Mobile, Work or one of the other options from the call drop-down list to transfer the call.