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Alert COVID-19 Update

Harvard University and Harvard Law School will shift to remote teaching and learning beginning Monday, March 23. For more information and the latest updates, please visit the HLS coronavirus information page.

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An issue has been identified that is impacting calls from anonymous/blocked numbers to Harvard Phone VoIP lines with call forwarding to a non-Harvard line enabled.

Direct Calls:

  • When an anonymous caller calls a VoIP line, and the VoIP line is call forwarded off the Harvard Network, the caller hears that the line is disconnected.
    • If the caller is not anonymous and the caller ID is provided, the call is forwarded as expected.
  • When an anonymous caller calls a VoIP line, and the VoIP line is NOT forwarded or is forwarded to another internal VoIP or Centrex line, the call is received as expected.

Single Number Reach Calls:

  • When an anonymous caller calls a VoIP line, and the VoIP line has Single Number Reach enabled to a line off the Harvard Network, the forwarding will not be routed to the off network destination.
  • When an anonymous caller calls a VoIP line, and the VoIP line has Single Number Reach enabled to other internal VoIP or Centrex lines, the call is received as expected.

Off Harvard Network is any line outside of the Harvard phone exchanges of 432, 493, 495, 496, 384, and 998.

There are very limited options to mitigate the issue at this time, however Harvard University IT is working with our vendors on identifying the root cause and implementing a fix to resolve the issue. The removal of call forwarding to any non-Harvard numbers would mitigate the issue temporarily while a solution is put in place. We will provide further updates as they become available.

If you have any questions or concerns, please contact the HLS ITS Service Desk.