diff -r 4ce423f34688 -r e267340986c9 mmserv/tms/tmsserver/src/tmsdtmftoneplayer.cpp
--- a/mmserv/tms/tmsserver/src/tmsdtmftoneplayer.cpp	Fri Sep 17 08:33:15 2010 +0300
+++ b/mmserv/tms/tmsserver/src/tmsdtmftoneplayer.cpp	Mon Oct 04 00:51:56 2010 +0300
@@ -56,6 +56,8 @@
     TRACE_PRN_FN_ENT;
     Cancel();
     delete iDTMFPlayer;
+    // Release memory and close handles to unused plug-ins held by the DevSound
+    REComSession::FinalClose();
     TRACE_PRN_FN_EXT;
     }