We create an application that receives notifications that there was a call. For this we create a subscription (communications / callRecords) to receive notification.
My question is, if there are errors when renewing the subscription, then all the notifications that occurred when the subscription was inactive will be lost?
Also I found that we can use Azure Event Hub (Get change notifications delivered in different ways) to send notifications to the hub and then read data from it, but for this case we need to keep subscription up-to-date?
Is there a way to guarantee receiving notifications?