Question: How does a Mobile Terminal (MT) handle routing for a `SET UP EVENT LIST` USAT command when it supports some but not all listed events, and the Terminal Equipment (TE) also partially supports the events?
Option 1: The MT sends a combined successful response to the UICC without forwarding the command to the TE, as long as the MT can set up at least one of its supported events.
Option 2: The MT checks if it can set up its supported events. If successful, it forwards the TE's portion of the event list to the TE. The MT then combines its own success with the TE's response (success, partial comprehension, or failure) in the TERMINAL RESPONSE, giving precedence to its own response in case of discrepancies.
Option 3: The MT only forwards the `SET UP EVENT LIST` command to the TE if the MT cannot set up any of the events it supports. If the TE fails, the MT reports this failure directly to the UICC without attempting to set up its own supported events.
Option 4: The MT splits the event list into two separate `SET UP EVENT LIST` commands - one for the MT's supported events and another for the TE's - and each entity sends a separate TERMINAL RESPONSE directly to the UICC.
Explanation: This option accurately reflects the specified behavior for handling `SET UP EVENT LIST` commands when both the MT and TE have partial support. The MT first assesses its capability to set up its supported events, then appropriately forwards the command to the TE if successful, combining the responses with precedence given to the MT's outcome in case of mixed results. This ensures comprehensive event setup and accurate response reporting to the UICC.