M 19 S 12 12 18 Security 18 31 12 31 Messages 11 14 24 16 14 16 14 12 15 18 12 18 18 T 12 15 Timer RegisterMediaEventCallback message ( 17, 17) extender device ( 23, 25) 14 27 12 28 UnRegisterMediaEventCallback message ( 18, 18) 33 12 12 Triggered events - higher layer N 23 27 7 U O 27 18 19 19 25 19 UnRegisterMediaEventCallback message ( 18, 18) 23 18 12 18 12 13 V 7 11 P 11 31 24 15 15 9 9 32 19 R 9 6 7 7 24 RegisterMediaEventCallback message ( 17, 17) 17 17 8 9 8 9 27
M 12 12 18 18 12 Messages 14 16 16 12 18 18 18 12 15 RegisterMediaEventCallback message ( 17, 17) 14 12 UnRegisterMediaEventCallback message ( 18, 18) 12 N 7 O 18 19 19 23 12 12 13 7 P 31 24 15 15 9 9 32 19 R 9 6 7 7 24 RegisterMediaEventCallback message ( 17, 17) 17 17 8 9 8 9 27 19 S Security 31 31 11 24 14 14 15 12 T Timer extender device ( 23, 25) 27 28 33 12 Triggered events - higher layer 23 27 U 27 19 25 UnRegisterMediaEventCallback message ( 18, 18) 18 18 V 11 11