Which three PSTN calling scenarios are possible during the outage?

You have a Microsoft Teams Phone deployment

You use Direct Routing with a Survivable Branch Appliance (SBA) at a site.

The site experiences an extended internet outage.

Which three PSTN calling scenarios are possible during the outage? Each coned answer presents a complete solution. NOTE: Each correct selection is worth one point.
A . dynamic emergency calling
B . outbound PSTN calls
C . inbound PSTN calls
D . call transfer of PSTN calls
E . hold and resume of PSTN calls

Answer: A,B,C