initial git import

src/common/cause.h

@@ -0,0 +1,12 @@
+#define CAUSE_NORMAL		16
+#define CAUSE_BUSY		17
+#define CAUSE_NOANSWER		19
+#define CAUSE_OUTOFORDER	27
+#define CAUSE_INVALNUMBER	28
+#define CAUSE_NOCHANNEL		34
+#define CAUSE_TEMPFAIL		41
+#define CAUSE_INVALCALLREF	81
+
+const char *cause_name(int cause);
+
+