diff --git a/include/openbsc/gsm_04_11.h b/include/openbsc/gsm_04_11.h
index 7167a55..b53d17d 100644
--- a/include/openbsc/gsm_04_11.h
+++ b/include/openbsc/gsm_04_11.h
@@ -70,4 +70,7 @@
 
 int gsm0411_send_sms(struct gsm_lchan *lchan, struct sms_deliver *sms);
 
+struct msgb *gsm411_msgb_alloc(void);
+int gsm0411_sendmsg(struct msgb *msg);
+
 #endif
diff --git a/src/gsm_04_11.c b/src/gsm_04_11.c
index b7e06ff..ede89ef 100644
--- a/src/gsm_04_11.c
+++ b/src/gsm_04_11.c
@@ -40,12 +40,12 @@
 #define GSM411_ALLOC_SIZE	1024
 #define GSM411_ALLOC_HEADROOM	128
 
-static struct msgb *gsm411_msgb_alloc(void)
+struct msgb *gsm411_msgb_alloc(void)
 {
 	return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM);
 }
 
-static int gsm0411_sendmsg(struct msgb *msg)
+int gsm0411_sendmsg(struct msgb *msg)
 {
 	if (msg->lchan)
 		msg->trx = msg->lchan->ts->trx;