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Removed

V-223345

The HTTP fallback for SIP connection in Lync must be disabled.

Finding ID
O365-LY-000002
Rule ID
SV-223345r508019_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-APP-000219
CCI
CCI-001184
Target Key
(None)
Documentable
No
Discussion

Prevents from HTTP being used for SIP connection in case TLS or TCP fail.

Fix Text

Set the policy value for Computer Configuration >> Administrative Templates >> Skype for Business 2016 >> Microsoft Lync Feature Policies "Disable HTTP fallback for SIP connection" to "Enabled".

Check Content

Verify the policy value for Computer Configuration >> Administrative Templates >> Skype for Business 2016 >> Microsoft Lync Feature Policies "Disable HTTP fallback for SIP connection" is set to "Enabled". Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\office\16.0\lync If the value disablehttpconnect is REG_DWORD = 1, this is not a finding.