Which two additional items must be configured for an endpoint to register manually with the Cisco TelePresence Video Communication Server for the SIP to function correctly? (Choose two.)

An E.164 alias is an H.323 addressing concept and is not a required parameter for SIP registration.

An H.323 ID is specific to H.323 protocol registration and is not used in SIP registration workflows.

The SIP URI (e.g., [email protected]) serves as the endpoint's SIP address of record and is the primary identifier used for SIP registration and routing on the VCS.

The SIP registrar and proxy server address must be manually configured on the endpoint so it knows where to send its REGISTER request; without this target, the endpoint cannot initiate SIP registration.

An NTP server IPv4 address is used for clock synchronization and is not a SIP registration requirement.

A unique system ID is an internal device identifier and is not a parameter required for SIP registration with the VCS.