diff --git a/devices/surface-hub/prepare-your-environment-for-surface-hub.md b/devices/surface-hub/prepare-your-environment-for-surface-hub.md
index 077e16a6a5..cef7042de1 100644
--- a/devices/surface-hub/prepare-your-environment-for-surface-hub.md
+++ b/devices/surface-hub/prepare-your-environment-for-surface-hub.md
@@ -36,9 +36,10 @@ Additionally, note that Surface Hub requires the following open ports:
 - HTTP: 80
 - NTP: 123
 
-Depending on your environment, access to additional ports may be needed:
-- For online environments, see [Office 365 IP URLs and IP address ranges](https://support.office.com/en-us/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US).
-- For on-premises installations, see [Skype for Business Server: Ports and protocols for internal servers](https://technet.microsoft.com/library/gg398833.aspx). 
+If you are using Surface Hub with Skype for Business, you will need to open additional ports. Please follow the guidance below:
+- If you use Skype for Business Online, see [Office 365 IP URLs and IP address ranges](https://support.office.com/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US).
+- If you use Skype for Business Server, see [Skype for Business Server: Ports and protocols for internal servers](https://technet.microsoft.com/library/gg398833.aspx). 
+- If you use a hybrid of Skype for Business Online and Skype for Business Server, you need to open all documented ports from [Office 365 IP URLs and IP address ranges](https://support.office.com/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2?ui=en-US&rs=en-US&ad=US) and [Skype for Business Server: Ports and protocols for internal servers](https://technet.microsoft.com/library/gg398833.aspx).
 
 Microsoft collects diagnostic data to help improve your Surface Hub experience. Add these sites to your allow list:
 - Diagnostic data client endpoint: `https://vortex.data.microsoft.com/`