isup: Allow to have a different OPC for ISUP messages.
diff --git a/include/bsc_data.h b/include/bsc_data.h
index 2cd0257..3d10bb3 100644
--- a/include/bsc_data.h
+++ b/include/bsc_data.h
@@ -91,6 +91,7 @@
 	int dpc;
 	int opc;
 	int sccp_opc;
+	int isup_opc;
 	int src_port;
 	int udp_port;
 	char *udp_ip;