Question: In an on-network scenario, how can an MCVideo client become involved in a simultaneous session for MCVideo calls as per 3GPP specifications?
Option 1: By rejecting all but one MCVideo call invitation to maintain a single dialog.
Option 2: Through network-initiated suspension of non-priority calls during emergency situations only.
Option 3: By inviting, joining, accepting more than one MCVideo call, or affiliating to a group, allowing multiple dialogs in parallel.
Option 4: By configuring the MCVideo server to merge all incoming calls into a single media bearer.
Explanation: This option correctly reflects how an MCVideo client can engage in simultaneous sessions as defined by 3GPP specifications. Inviting, joining, accepting more than one MCVideo call, or affiliating to a group enables the client to handle multiple calls concurrently (using multiple dialogs), which is a key aspect of simultaneous sessions for MCVideo calls on-network. This functionality supports the prioritization and management of multiple active calls, potentially resulting in more than one media bearer being established.