Which Cisco Unified Communications Manager configuration is required for SIP MWI integrations?

Refer to the exhibit.

An engineer verifies the configured of an MGCP gateway. The commands are already configured. Which command is necessary to enable MGCP?

Which statement describes the outcome when the trust boundary is defined at the Cisco IP phone?

An end used at a remote site is trying initiate an ad hoc conference call to an end user at the main site the conference bridge is configured to support G.711 remote user phone only support G.729 the remote end user receives an error message on the phone "cannot complete conference call what is the cause of the issue?

Which two protocols are proxied over an Expressway-E/C pair when a Mobile and Remote Access login including phone services is performed? (Choose two.)