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What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)
A Webex engineer is configuring SSO in Control Hub with Active Directory Federation Services. The engineer wants to authenticate users for all the applications that they are given rights to. The engineer also wants to eliminate further prompts when users switch applications during a particular session. Which action tells ADFS the fields to map to Webex to identify a user?
An engineer reviews the configuration of a pair of Expressway servers for a company with the domain example.com. The company allows toll fraud calls to reach the Cisco UCM only when it expects externally registered devices to call internal 5-digit extensions. The search history shows that the fraudulent calls have a destination URI of 8 or more digits and several domains. What must the engineer configure to prevent all toll fraud calls from going past the Expressway-E to the internal network?
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
The Cisco Webex Hybrid Message service is deployed geographically for separate Cisco Unified IM and
Presence clusters. What must be configured in the Cisco Webex Control Hub to achieve this deployment?

Refer to the exhibit. A collaboration engineer creates an allow list test file for a Mobile and Remote Access deployment. Which lines are needed to format the test in the file correctly?
Cisco Collaboration endpoints are exchanging encrypted signaling messages.
What is one major complication in implementing NAT ALG for voice and video devices?
Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?