diff --git a/launch/example.launch b/launch/example.launch
index c495445..d0f1890 100644
--- a/launch/example.launch
+++ b/launch/example.launch
@@ -2,26 +2,34 @@
 <launch>
     <node pkg="roscloud" type="client_node.py" name="foo_client_node" output="screen">
         <param name="name" value="foo"/>
-        <param name="host" value="localhost"/>
-        <param name="port" value="9000"/>
+        <!-- <param name="host" value="localhost"/> -->
+        <!-- <param name="port" value="9000"/> -->
+        <param name="host" value="wallar.me"/>
+        <param name="port" value="8080"/>
     </node>
 
     <node pkg="roscloud" type="client_node.py" name="bar_client_node" output="screen">
         <param name="name" value="bar"/>
-        <param name="host" value="localhost"/>
-        <param name="port" value="9000"/>
+        <!-- <param name="host" value="localhost"/> -->
+        <!-- <param name="port" value="9000"/> -->
+        <param name="host" value="wallar.me"/>
+        <param name="port" value="8080"/>
     </node>
 
     <node pkg="roscloud" type="client_node.py" name="baz_client_node" output="screen">
         <param name="name" value="baz"/>
-        <param name="host" value="localhost"/>
-        <param name="port" value="9000"/>
+        <!-- <param name="host" value="localhost"/> -->
+        <!-- <param name="port" value="9000"/> -->
+        <param name="host" value="wallar.me"/>
+        <param name="port" value="8080"/>
     </node>
 
     <node pkg="roscloud" type="client_node.py" name="qux_client_node" output="screen">
         <param name="name" value="qux"/>
-        <param name="host" value="localhost"/>
-        <param name="port" value="9000"/>
+        <!-- <param name="host" value="localhost"/> -->
+        <!-- <param name="port" value="9000"/> -->
+        <param name="host" value="wallar.me"/>
+        <param name="port" value="8080"/>
         <rosparam>
             publishing:
                 - /state
@@ -51,9 +59,9 @@
         <param name="camera_frame_id" value="usb_cam" />
         <param name="io_method" value="mmap"/>
     </node>
-    <node name="image_view" pkg="image_view" type="image_view" respawn="false" output="screen">
-        <remap from="image" to="/usb_cam/image_raw"/>
-        <param name="autosize" value="true" />
-    </node>
+    <!-- <node name="image_view" pkg="image_view" type="image_view" respawn="false" output="screen"> -->
+    <!--     <remap from="image" to="/qux/usb_cam/image_raw"/> -->
+    <!--     <param name="autosize" value="true" /> -->
+    <!-- </node> -->
 
 </launch>
diff --git a/launch/video_chat_demo.launch b/launch/video_chat_demo.launch
new file mode 100644
index 0000000..f8d3d07
--- /dev/null
+++ b/launch/video_chat_demo.launch
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+<launch>
+    <node pkg="roscloud" type="client_node.py" name="alex_client_node" output="screen">
+        <param name="name" value="alex"/>
+        <param name="host" value="wallar.me"/>
+        <param name="port" value="8080"/>
+        <rosparam>
+            publishing:
+                - /usb_cam/image_raw/compressed
+            types:
+                - sensor_msgs/CompressedImage
+            trusted:
+                - raphael
+        </rosparam>
+
+    </node>
+
+    <node name="usb_cam" pkg="usb_cam" type="usb_cam_node" output="screen" >
+        <param name="video_device" value="/dev/video0" />
+        <param name="image_width" value="320" />
+        <param name="image_height" value="240" />
+        <param name="pixel_format" value="yuyv" />
+        <param name="camera_frame_id" value="usb_cam" />
+        <param name="io_method" value="mmap"/>
+    </node>
+    <!-- <node name="image_view" pkg="image_view" type="image_view" respawn="false" output="screen"> -->
+    <!--     <remap from="image" to="/qux/usb_cam/image_raw"/> -->
+    <!--     <param name="autosize" value="true" /> -->
+    <!-- </node> -->
+
+</launch>