diff --git a/ip_addr.h b/ip_addr.h
index 9817de41eda..f40d1912e37 100644
--- a/ip_addr.h
+++ b/ip_addr.h
@@ -57,7 +57,8 @@
 
 enum sip_protos { PROTO_NONE = 0, PROTO_FIRST = 1, PROTO_UDP = 1, \
 	PROTO_TCP, PROTO_TLS, PROTO_SCTP, PROTO_WS, PROTO_WSS, PROTO_BIN,
-	PROTO_BINS, PROTO_HEP_UDP, PROTO_HEP_TCP, PROTO_SMPP, PROTO_OTHER };
+	PROTO_BINS, PROTO_HEP_UDP, PROTO_HEP_TCP, PROTO_SMPP, PROTO_MSRP,
+	PROTO_MSRPS, PROTO_OTHER };
 #define PROTO_LAST PROTO_OTHER
 
 struct ip_addr{
diff --git a/socket_info.h b/socket_info.h
index 4aa7a134d40..461e69c0986 100644
--- a/socket_info.h
+++ b/socket_info.h
@@ -253,6 +253,11 @@ inline static int parse_proto(unsigned char* s, long len, int* proto)
 				*proto=PROTO_SMPP; return 0;
 			}
 			break;
+		case PROTO2UINT('m', 's', 'r'):
+			if(len==4 && (s[3]=='p' || s[3]=='P')) {
+				*proto=PROTO_MSRP; return 0;
+			}
+			break;
 		default:
 			if(len==2 && (s[0]|0x20)=='w' && (s[1]|0x20)=='s') {
 				*proto=PROTO_WS; return 0;