An administrator is configuring call handlers in Cisco Unity Connection. The administrator must ensure that internal extensions are restricted so that callers must go through the company operator to reach employees, and so that callers hear an error message if they attempt to dial extensions directly. Which setting is configured to accomplish this task?

Which statement about SIP federation between Cisco Unified Communications IM and Presence and Microsoft Skype for Business is true?

Users report that they are unable to check voicemail. and an engineer discovers that the voicemail system is not routing calls between Cisco Unity Connection and Cisco UCM via SCCP Which action should be taken to resolve this issue?

Users on Cisco.com experience issues while using Cisco Jabber, and the error 'Cannot communicate with the server" appears. An engineer checks the logs for the Jabber client and discovers the error "LERR_JABBER_AUTH <17>: Authentication error with server e.g. resource bind, TLS, create a session or SASL error. What should be checked to resolve this issue?

Refer to Exhibit.

An engineer is troubleshooting operation performance in the network. Which account should be taken to restore high availability in the sub cluster?