--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gsm-fw/L1/cfile/tch_feature.c	Fri Mar 18 16:37:28 2016 +0000
@@ -0,0 +1,29 @@
+/*
+ * This module is a FreeCalypso addition; it contains code implementing
+ * our custom voice TCH rerouting feature.
+ */
+
+#include "config.h"
+#include "l1_confg.h"
+#include "l1_types.h"
+#include "sys_types.h"
+#include "l1_trace.h"
+#include "tch_feature.h"
+
+T_RVT_USER_ID tch_reroute_rvt_id;
+BOOL tch_reroute_downlink;
+
+/*
+ * The following function is the callback registered with RVT; it gets
+ * called in RVT HISR context.
+ */
+static void tch_rvt_input_callback(T_RVT_BUFFER pkt, UINT16 pktlen)
+{
+	/* guts to be filled */
+}
+
+void feature_tch_reroute_init()
+{
+	rvt_register_id("TCH", &tch_reroute_rvt_id, tch_rvt_input_callback);
+	tch_reroute_downlink = FALSE;
+}