Question: What happens to Call Control when the MM connection is re-established?
Option 1: It terminates the call.
Option 2: It initiates a new call setup.
Option 3: It suspends all message transmissions.
Option 4: It resumes transmission of possibly suspended messages and user data exchange.
Explanation: When the MM connection is re-established, Call Control is notified and can then resume its normal operations, including transmitting any messages that were suspended during the disconnection and exchanging user data when a suitable channel becomes available.