You support a Skype for Business environment. You deploy System Center Operations Manager. You implement Enterprise Voic

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You support a Skype for Business environment. You deploy System Center Operations Manager. You implement Enterprise Voice.
Some users use a desktop phone to place and receive public switched telephone network (PSTN) calls with people outside of Skype for Business. Some of these users report intermittent connectivity issues with incoming and outgoing calls.
You need to periodically confirm that users are able to place and receive calls with people outside of Skype for Business.
Which two actions should you perform? Each correct answer presents part of the solution.

A. Create a watcher node and configure it for an extended, non-default synthetic transaction.
B. In the synthetic transaction, run the Test-CsP2PAV Skype for Business Management Shell cmdlet.
C. In the synthetic transaction, run the Test-CsPstnPeerToPeerCall Skype for Business Management Shell cmdlet.
D. Create a watcher node and configure it for a default synthetic transaction.