diff --git a/pom.xml b/pom.xml
index 1ac6d36..75c3b5b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
 
     <groupId>com.geedgenetworks.application</groupId>
     <artifactId>sip-rtp-correlation</artifactId>
-    <version>2.0-rc7</version>
+    <version>2.0-rc8</version>
 
     <name>Flink : SIP-RTP : Correlation</name>
 
diff --git a/src/main/java/com/geedgenetworks/flink/easy/application/voip/VoipUDFFactory.java b/src/main/java/com/geedgenetworks/flink/easy/application/voip/VoipUDFFactory.java
index 20d0746..d718a14 100644
--- a/src/main/java/com/geedgenetworks/flink/easy/application/voip/VoipUDFFactory.java
+++ b/src/main/java/com/geedgenetworks/flink/easy/application/voip/VoipUDFFactory.java
@@ -20,6 +20,7 @@ public class VoipUDFFactory implements UDFFactory {
                 put("HAS_EXTERNAL_IP_ADDRESS", new HasExternalIpAddress());
 
                 put("STREAM_DIR", new StreamDir());
+                put("STREAM_DIR_SET", new StreamDirSet());
                 put("FIND_NOT_BLANK", new FindNotBlank());
                 put("SORT_ADDRESS", new SortAddress());
 
diff --git a/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/SortAddress.java b/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/SortAddress.java
index ab422b7..13ab4a6 100644
--- a/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/SortAddress.java
+++ b/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/SortAddress.java
@@ -2,6 +2,7 @@ package com.geedgenetworks.flink.easy.application.voip.udf;
 
 import com.google.common.collect.Lists;
 import com.zdjizhi.utils.IPUtil;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.flink.api.java.tuple.Tuple2;
 import org.apache.flink.table.annotation.DataTypeHint;
 import org.apache.flink.table.functions.ScalarFunction;
@@ -17,6 +18,9 @@ public class SortAddress extends ScalarFunction {
     public static String of(
             Tuple2<String, Integer> a1, Tuple2<String, Integer> a2) {
         var list = Lists.newArrayList(a1, a2);
+        if (a1.f1 == null || a2.f1 == null || StringUtils.isAnyEmpty(a1.f0, a2.f0)) {
+            return "";
+        }
         list.sort((a, b) -> {
             if (a.f1.equals(b.f1)) {
                 return Long.compare(
diff --git a/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDir.java b/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDir.java
index 3f5166f..e571cf4 100644
--- a/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDir.java
+++ b/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDir.java
@@ -18,9 +18,4 @@ public class StreamDir extends ScalarFunction {
         }
         return v;
     }
-
-    public static void main(String[] args) {
-        System.out.println(8192L + 16384L);
-        System.out.println(new StreamDir().eval(8192L + 16384L));
-    }
 }
\ No newline at end of file
diff --git a/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDirSet.java b/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDirSet.java
new file mode 100644
index 0000000..de1d727
--- /dev/null
+++ b/src/main/java/com/geedgenetworks/flink/easy/application/voip/udf/StreamDirSet.java
@@ -0,0 +1,22 @@
+package com.geedgenetworks.flink.easy.application.voip.udf;
+
+import org.apache.flink.table.annotation.DataTypeHint;
+import org.apache.flink.table.functions.ScalarFunction;
+
+public class StreamDirSet extends ScalarFunction {
+
+    public @DataTypeHint("BIGINT") Long eval(Long flags) {
+        if (flags == null) {
+            return 8192 + 16384L;
+        }
+        Long r = null;
+        if ((flags & 8192) == 0) {
+            r += 8192;
+        }
+        if ((flags & 16384) == 0) {
+            r += 16384;
+        }
+        return r;
+    }
+
+}
diff --git a/src/main/resources/jobs/job.yml b/src/main/resources/jobs/job.yml
index 2789c11..cd4bbdf 100644
--- a/src/main/resources/jobs/job.yml
+++ b/src/main/resources/jobs/job.yml
@@ -335,13 +335,13 @@ pipeline:
     splits:
       # Invalid ip or port
       - name: error1-records
-        where: NOT(IS_IP_ADDRESS(client_ip)) || NOT(IS_IP_ADDRESS(server_ip)) || client_port <= 0 || server_port <= 0
+        where: NOT(IS_IP_ADDRESS(client_ip)) || NOT(IS_IP_ADDRESS(server_ip)) || client_port.isNull || client_port <= 0 || server_port.isNull || server_port <= 0
       # Invalid stream dir
       - name: error2-records
         where: decoded_as == 'SIP' &&STREAM_DIR(flags) != 1 && STREAM_DIR(flags) != 2 && STREAM_DIR(flags) != 3
       # Invalid: SIP one-way stream and has invalid network address
       - name: error3-records
-        where: decoded_as == 'SIP' && ( NOT(HAS_IP_ADDRESS(sip_originator_sdp_connect_ip, sip_responder_sdp_connect_ip)) || sip_originator_sdp_media_port <= 0 || sip_responder_sdp_media_port <= 0 )
+        where: decoded_as == 'SIP' && ( NOT(HAS_IP_ADDRESS(sip_originator_sdp_connect_ip, sip_responder_sdp_connect_ip)) || sip_originator_sdp_media_port.isNull || sip_originator_sdp_media_port <= 0 || sip_responder_sdp_media_port.isNull && sip_responder_sdp_media_port <= 0 )
       - name: error4-records
         where: decoded_as == 'SIP' && STREAM_DIR(flags) == 3 && ( NOT( IS_IP_ADDRESS(sip_originator_sdp_connect_ip) ) || NOT( IS_IP_ADDRESS(sip_responder_sdp_connect_ip) ) )
 
@@ -643,7 +643,9 @@ pipeline:
           - if: STREAM_DIR(flags) != 3 && @v1.isNotNull && STREAM_DIR(@v1.$flags) != STREAM_DIR(flags)
             then:
               - |-
-                OUTPUT ok FROM withColumns(recv_time to sip_call_id),
+                OUTPUT ok FROM withColumns(recv_time to t_vsys_id), 
+                      STREAM_DIR_SET(flags) AS flags,
+                      withColumns(flags_identify_info to sip_call_id),
                       FIND_NOT_BLANK(@v1.$sip_originator_description, sip_originator_description) AS sip_originator_description,
                       FIND_NOT_BLANK(@v1.$sip_responder_description, sip_responder_description) AS sip_responder_description,
                       FIND_NOT_BLANK(@v1.$sip_user_agent, sip_user_agent) AS sip_user_agent,