diff --git a/library/NS_Provider_IPL4.ttcn b/library/NS_Provider_IPL4.ttcn
index 33f3529..8145c13 100644
--- a/library/NS_Provider_IPL4.ttcn
+++ b/library/NS_Provider_IPL4.ttcn
@@ -195,4 +195,11 @@
 
 } /* main */
 
+function f_nspip_add_nsvc(NS_Provider_IPL4_CT vc_ipep, charstring remote_ip, PortNumber remote_port, NSVC_CT vc_nsvc)
+runs on NS_CT {
+	NSPIP_PROC.call(NSPIP_add_nsvc:{remote_ip, remote_port, vc_nsvc}) to vc_ipep {
+		[] NSPIP_PROC.getreply(NSPIP_add_nsvc:{?,?,?});
+	}
+}
+
 } /* module */