You are attempting to download a call recording using Internet Explorer 11 in Windows 10 but are unable to export it. Every attempt to download the call recording to any location, e.g. desktop, user files, or downloads, results in the save dialogue box closing, but the file is not viewable after being saved. You suspect that this may be the result of a recent Microsoft patch to an Internet Explorer security vulnerability.
To resolve this issue, use the Microsoft Edge browser in "IE mode" because downloading the recordings requires an ActiveX plugin. For an explanation of "IE mode" in the Edge browser, see the Microsoft article What is Internet Explorer Mode?
To configure MS Edge for IE mode using Group Policies see the Configure IE mode policies article from Microsoft.
To configure MS Edge for IE mode on an individual workstation see the Manual: How to set up IE Mode (Internet Explorer Integration) in Edge C (Updated) article from Microsoft.
Alternatively, you can add the
--ie-mode-test flag to your MS Edge shortcut target to see if the IE mode option appears under Edge > More Tools while on the Volt Delta site to determine if IE mode has been enabled. In order for this to be true IE mode has to already be enabled in the browser. You can confirm this by directing the MS Edge browser to
edge://compat/iediagnostic. This page will provide details about the Edge browser and indicate on the line "Attempt to launch IE mode" "Success" or "Failure".