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-rw-r--r--include/asterisk/frame.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asterisk/frame.h b/include/asterisk/frame.h
index 53383834f..846832aff 100644
--- a/include/asterisk/frame.h
+++ b/include/asterisk/frame.h
@@ -122,6 +122,12 @@ enum ast_frame_type {
AST_FRAME_DTMF_BEGIN,
/*! Internal bridge module action. */
AST_FRAME_BRIDGE_ACTION,
+ /*! Internal synchronous bridge module action.
+ * Synchronous bridge actions may be queued onto bridge
+ * channels, but they absolutely must not ever be written
+ * directly into bridges.
+ */
+ AST_FRAME_BRIDGE_ACTION_SYNC,
};
#define AST_FRAME_DTMF AST_FRAME_DTMF_END