diff --git a/images/kamailio/Dockerfile b/images/kamailio/Dockerfile
index b06afe5..a1b4ee6 100644
--- a/images/kamailio/Dockerfile
+++ b/images/kamailio/Dockerfile
@@ -39,6 +39,7 @@ RUN cmake -S /kamailio -B /out -G Ninja -D CMAKE_BUILD_TYPE=Release \
             pua ims_registrar_pcscf ims_usrloc_pcscf ims_ipsec_pcscf ims_qos \
             ims_icscf \
             ims_registrar_scscf ims_usrloc_scscf ims_auth ims_isc ims_charging \
+            enum \
             presence \
             dispatcher \
             rtpengine \
diff --git a/images/kamailio/cscf/serving.cfg b/images/kamailio/cscf/serving.cfg
index 72d0398..074be14 100644
--- a/images/kamailio/cscf/serving.cfg
+++ b/images/kamailio/cscf/serving.cfg
@@ -34,10 +34,13 @@ loadmodule "ims_usrloc_scscf"
 loadmodule "ims_registrar_scscf"
 loadmodule "ims_auth"
 loadmodule "ims_isc"
+loadmodule "enum"
 loadmodule "rtpengine"
 
 modparam("rtpengine", "rtpengine_sock", RTPADR)
 
+modparam("enum", "domain_suffix", REALM)
+
 include_file "common.cfg"
 
 modparam("rr", "add_username", 1)
@@ -201,14 +204,21 @@ route[SUBSCRIBE] {
 }
 
 route[MORIG] {
+	$avp(RR_USER)="mo";
+	$var(direction) = "orig";
+	route(BILL);
+
 	if("INVITE" == $rm) {
 		t_on_reply("INVITE");
 		rtpengine_manage();
-	}
 
-	$avp(RR_USER)="mo";
-	$var(direction) = "orig";
-	route(BILL);
+		# other networks / PSTN
+		if($rU =~ "\+[0-9]+") {
+			if(!enum_query()) {
+				xinfo("ENUM lookup failed\n");
+			}
+		}
+	}
 }
 
 route[MTERM] {