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-rw-r--r--include/asterisk/file.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asterisk/file.h b/include/asterisk/file.h
index 4b0325101..e7817b377 100644
--- a/include/asterisk/file.h
+++ b/include/asterisk/file.h
@@ -44,6 +44,7 @@ struct ast_format;
#define AST_MAX_FORMATS 10
/*! Convenient for waiting */
+#define AST_DIGIT_NONE ""
#define AST_DIGIT_ANY "0123456789#*ABCD"
#define AST_DIGIT_ANYNUM "0123456789"