Section: 5.4.3.2 Receipt of a DISCONNECT message from the mobile station.
Content: The call control entity in the network in any state except the "null" state and the "release request" state shall, upon receipt of a DISCONNECT message: - Stop all running call control timers; - initiate procedures to clear the network connection and the call to the remote user; - send a RELEASE message to its peer entity; - start timer T308; and - enter the "release request" state. NOTE: The RELEASE message has only local significance and does not imply an acknowledgement of clearing from the remote user.