Correct to only inject LOW_WAVEBUF_LVL silence when enabling, Correct RTL bug.
Correct to only inject LOW_WAVEBUF_LVL silence when enabling,
Correct RTL bug.

git-svn-id: 5274dacc98e2a95d0b0452670772bfdffe61ca90@9921 a612230a-c5fa-0310-af8b-88eea846685b

sipXtapi/sipXtapi-svn-mirror,sipXtapi/sipXtapi-svn-mirror,sipXtapi/sipXtapi-svn-mirror,sipXtapi/sipXtapi-svn-mirror,sipXtapi/sipXtapi-svn-mirror,sipXtapi/sipXtapi-svn-mirror,sipXtapi/sipXtapi-svn-mirror