Which two licenses are required for the Expressway B2B feature to work? (Choose two)

Within which cache timeline do the Webex App endpoints perform a STUN test to calculate round-trip delay time to available media node clusters?

Refer to the exhibit. Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway.
An H.323 endpoint with an alias of "EndpointA" is registered, and a SIP endpoint with an alias of
"[email protected]" is also registered. How is this issue resolved?

When a Cisco Webex Video Mesh Node is co figured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?

An engineer is supporting an existing Cisco Collaboration deployment that has internal and external home users using the solution without VPN. Business usage also includes B2B calling for voice and video. Suddenly the engineer receives a report that one of the home office users cannot use the Cisco Jabber client, and shortly after, a few more reports come in for the same error. What must the engineer check first to resolve this issue?