Mms: cleanup

Change-Id: I714d95fb0ea79423f1e3d891aee7591daf82e8d8
Mms: fix NPE bug

Change-Id: I2a137e674c55994b9f8fdaa4fb5640d7be0ea0cb

Mms: fix NPE bug

Change-Id: Ic75e86e900935c36dab74a6e7551fe1a3e00343f
add 5000 delay send duration

Change-Id: I03a7b259621664d0c3ad1394e443cd9933d91aa9