I have the same issue as the users in this thread.
Our users are trying to use a VoIP tool called VoIPOffice Communicator and Sophos is blocking them, we've been using this application for years now and the flag is a false positive for sure.
All the links provided for a workaround in the above URL is null and void.
I have added FOUR exclusions to Sophos Central now, but this is still being blocked.
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