A fix has been applied and initial testing shows the fault is resolved. We'll continue to monitor and test but you should be seeing services having returned to normal now.
We are very sorry for the disruption caused by this issue.
Investigating
Update
We are continuing to address the cause of the intermittence. We are very sorry for the disruption that this will be causing to our users. It's not entirely clear why we are seeing the issues we are which is making this unexpectedly difficult issue to track. This is a very serious issue and we have full resource working to fix this as quickly as we can.
Investigating
Investigating
We are investigating an issue where there is an intermittent issue affecting inbound calls from multiple networks. As soon as we know more we will update this feed.