diff --git a/include/osmocom/msc/mncc.h b/include/osmocom/msc/mncc.h
index cf7d7ce..1c8aff0 100644
--- a/include/osmocom/msc/mncc.h
+++ b/include/osmocom/msc/mncc.h
@@ -28,6 +28,7 @@
 #include <osmocom/gsm/mncc.h>
 
 #include <stdint.h>
+#include <netinet/in.h>
 
 struct gsm_network;
 struct msgb;
@@ -170,7 +171,7 @@
 	unsigned char	data[0];
 };
 
-#define MNCC_SOCK_VERSION	6
+#define MNCC_SOCK_VERSION	7
 struct gsm_mncc_hello {
 	uint32_t	msg_type;
 	uint32_t	version;
@@ -189,8 +190,7 @@
 struct gsm_mncc_rtp {
 	uint32_t	msg_type;
 	uint32_t	callref;
-	uint32_t	ip;
-	uint16_t	port;
+	struct sockaddr_storage addr;
 	uint32_t	payload_type;
 	uint32_t	payload_msg_type;
 	char		sdp[1024];