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Dec15 patch causes Missed Call Notifications to malfunction

Af Thomas Juhl Olesen, Globeteam Infrastruktur. 

Dec. 8. a security patch for LYNC / Skype for Business was released.

Initially MS released a KB about this patch causing video to stop working when recording meetings.
https://support.microsoft.com/en-us/kb/3128747

But it seems this patch also introduced another problem – i have now seen this at a handfull of customer sites – so not all are impacted.

Issue that occurs is that Missed Call Notifications simply stop working, everything is green, so EWS and MAPI status are ok – and it makes no difference if user is enabled for UM.

So far a tested solution is to remove this patch – but being a security patch – this is not really a perfect solution, bug has been submitted to Microsoft.

Issue seems to only occur when both of the following patches are installed

And resolution/ workaround is as follows – this has been tested at 3 different sites, with same effects

Problematic patches are

KB3114351
KB3101496

To make “Missed Call Notifications” work again:

1. Uninstall KB3114351
2. Reboot the computer
4. Uninstall KB3101496
5. Reboot the computer

Test Missed Calls

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