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

An administrator is configuring digital networking between Cisco Unity Connection clusters. What are two requirements for the configuration? {Choose two.) end-user credentials

Refer to the exhibit.

Users report that they cannot see the Chat Rooms icon on their Cisco Jabber clients. This feature works without issue in the lab. An engineer reviews the Cisco IM&P and Jabber configuration and finds that the jabber-config.xml file is configured properly to support this feature. Which activity should be performed on the IM&P server to resolve this issue?

Refer to the exhibit.

A collaboration engineer has integrated Cisco Unity Express with Cisco Unified Communications Manager Express and is experimenting with the MWI feature. With the current configuration, no MWI change occurs when leaving new messages or after playing new messages. Which two changes are needed to correct the configuration? (Choose two.)

Refer to the exhibit.

Persistent Chat is configured in the Cisco IM and Presence server using PostgreSQL as the back-end database.
Users report that the Chat Rooms icon is missing from their Cisco Jabber clients. Which action should the administrator take to resolve this issue?