Removing the Trusted Applications that were installed for the notification/contact list support by SphereShield for SfB
If the removal of the Trusted Application configurations is required it is possible to do so by executing the following two lines in powershell on the Front End:
Get-CsTrustedApplicationPool | Where-Object {$_.Applications -like "*SkypeShield*"} | Remove-CsTrustedApplicationPool -forceGet-CsTrustedApplicationPool | Where-Object {$_.Applications -like "*sipfiltertrustedapp*"} | Remove-CsTrustedApplicationPool -forceEnable-CSTopology