The University of Iowa often receives requests to block incoming calls that are associated with SPAM or are considered robocalls.  Unfortunately, we do not block incoming calls system-wide.   It is too easy for callers to spoof the incoming caller ID and, as a result, we could be blocking legitimate calls that need to reach the University.  

We will block targeted harassing phone calls if directed to do so by the University of Iowa Department of Public Safety.  All targeted harassing phone calls should be reported immediately to them at 319-335-5022 or

The solution offered below provides information about blocking incoming calls on your Windows Skype for Business desktop client. This solution is not supported by ITS and is provided for your convenience only. 

Note: VoIP phones and mobile phone apps will still ring. In addition, the Mac Skype for Business desktop does not support blocking calls. 

Article number: 
Last updated: 
April 15, 2020