Update receive-real-time-telemetry.md

Add info for connectivity methods to the eventhubs

Author: hrshelar

articles/orbital/receive-real-time-telemetry.md

@@ -16,14 +16,18 @@ An Azure Orbital Ground station emits telemetry events that can be used to analy
 ## Configure Event Hubs
 
 1. In your subscription, go to Resource Provider settings and register Microsoft.Orbital as a provider
-1. Create an Azure Event Hubs in your subscription.
-1. From the left menu, select Access Control (IAM). Under Grant Access to this Resource, select Add Role Assignment
-1. Select Azure Event Hubs Data Sender.
-1. Assign access to 'User, group, or service principal'
-1. Click '+ Select members'
-1. Search for 'Azure Orbital Resource Provider' and press Select
-1. Press Review + Assign. This action will grant Azure Orbital the rights to send telemetry into your event hub.
-1. To confirm the newly added role assignment, go back to the Access Control (IAM) page and select View access to this resource.
+2. Create an Azure Event Hubs in your subscription.
+
+> [!Note]
+> Choose Public access for connectivity access to the Eventhubs. Private access or service endpoints is not supported.
+
+3. From the left menu, select Access Control (IAM). Under Grant Access to this Resource, select Add Role Assignment
+4. Select Azure Event Hubs Data Sender.
+5. Assign access to 'User, group, or service principal'
+6. Click '+ Select members'
+7. Search for 'Azure Orbital Resource Provider' and press Select
+8. Press Review + Assign. This action will grant Azure Orbital the rights to send telemetry into your event hub.
+9. To confirm the newly added role assignment, go back to the Access Control (IAM) page and select View access to this resource.
 Congrats! Orbital can now communicate with your hub.
 
 ## Enable telemetry for a contact profile in the Azure portal