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?

Which SSO authentication method requires no action from the user when the session token times out?

After integrating Cisco Unity Express with Cisco Unified Communications Manager Express, users report that the system does not respond to their digit presses. Which two configuration snippets resolve this issue?
(Choose two.)

Refer to the exhibit.

Which two steps resolve the "Users with Duplicate User IDs" message? (Choose two.)