diff --git a/openbsc/src/libmsc/silent_call.c b/openbsc/src/libmsc/silent_call.c
index 131a178..590d01b 100644
--- a/openbsc/src/libmsc/silent_call.c
+++ b/openbsc/src/libmsc/silent_call.c
@@ -72,6 +72,7 @@
 	return rc;
 }
 
+#if 0
 /* receive a layer 3 message from a silent call */
 int silent_call_rx(struct gsm_subscriber_connection *conn, struct msgb *msg)
 {
@@ -79,6 +80,7 @@
 	LOGP(DLSMS, LOGL_NOTICE, "Discarding L3 message from a silent call.\n");
 	return 0;
 }
+#endif
 
 struct msg_match {
 	uint8_t pdisc;
@@ -91,6 +93,7 @@
 	{ GSM48_PDISC_MM, GSM48_MT_MM_CM_SERV_REQ },
 };
 
+#if 0
 /* decide if we need to reroute a message as part of a silent call */
 int silent_call_reroute(struct gsm_subscriber_connection *conn, struct msgb *msg)
 {
@@ -114,6 +117,7 @@
 	LOGP(DLSMS, LOGL_INFO, "Rerouting L3 message from a silent call.\n");
 	return 1;
 }
+#endif
 
 
 /* initiate a silent call with a given subscriber */