there is no special concept to create a group conferencing application using FMS and flex. Its basically similar to One to One application. A group conferencing application is a little more complex. In case of 1 to 1 we publish 1 video is published and 1 video is received at each user.

In case of multi user conference say we have 3 users then it would be like this:

User1 Publishes video and receives from User2 and User3
User2 Publishes video and receives from User1 and User3
User3 Publishes video and receives from User2 and User1

Thank You Tyler.

But how to do it with item renderer?
As i am having itemrenderer component in which there is video and one label component
When ever user logs in array get filled which i passes to item renderer and it will get display in item renderer automatically
So now,
Whenever i click user label then his camera should be display. and when i click to my own name my camera shud on

I am posting my code after this its giving me error of "net connection not be null"

Please help me i m already working on it from last 2 days

Please post early

import com.gc.groupChat.model.GCModelLocator;
			
			import flash.sampler.NewObjectSample;
			
			import mx.controls.Alert;
			import mx.managers.PopUpManager;
			import mx.utils.ObjectUtil;
			
			protected var camera:Camera;
			
			private var nc:NetConnection = null;
			private var microphone:Microphone;
			private var nsPublish:NetStream = null;
			private var nsPlay:NetStream = null;
			
			NetConnection.defaultObjectEncoding = flash.net.ObjectEncoding.AMF0;
		
			[Bindable]
			private var videoContainer1:Video = new Video(104,104);
			
			[Bindable]
			private var videoContainer2:Video = new Video(104,104);
		   
			
						
			private function nameLabelClickedHandler():void
			{
	             if(data.toString()== "myusername")(myusername iss stored in model which is unique and stream is done with that)
				 {
                                 /*username iss stored in model which is unique and stream is done with that*/
					
                                   onMyCamera();
				 }
				 else
				 {
					
					 playUserCamera();
				 }
			}
			
			
			 private function onMyCamera():void
			{
                                      /*my camera is working*/
				
				camera = Camera.getCamera();
				microphone = Microphone.getMicrophone();
				
				if(camera)
				{	
					
					camera.setMode(320, 240, 30, true);
					camera.setQuality(0, 75);
					camera.setKeyFrameInterval(24);
					microphone.rate=11;
					videoContainer1.clear();
					videoContainer1.attachCamera(camera);
					UIComponentVideo1.addChild(videoContainer1);
					
				}	
				doConnect();
					
			} 
				
			
			public function doConnect(event:Event = null):void 
			{
				if (nc == null) {
					
					nc = new NetConnection();
					nc.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
					
					var client:Object = new Object();		
					client.onBWDone = function():void
						client.onPlayStatus = function():void		
						nc.client = client;
						nc.connect("rtmp:/VideoGroupChat");
						
				} else 
				{
					if (nsPublish != null) {
						nsPublish.attachCamera(null);
						nsPublish.attachAudio(null);
					}
					nsPublish = null;
					
					if (nsPlay != null) {
						nsPlay.attachCamera(null);
						nsPlay.attachAudio(null);
					}
					nsPlay = null;
					
					videoContainer1.attachCamera(null);
					videoContainer1.clear();
					
					
					nc.close();
					nc = null;
					
					
					
				}
				
				
				function netStatusHandler(infoObject:NetStatusEvent):void {
					
					if (infoObject.info.code == "NetConnection.Connect.Failed") {
						
						nc = null;
						
					} else if (infoObject.info.code == "NetConnection.Connect.Rejected") {
						
						nc = null;
						
					} else if (infoObject.info.code == "NetConnection.Connect.Success")
					{
						videoContainer1.clear();
						videoContainer1.attachCamera(camera);
						publish();
                                               /*  when connection sucess*/
						
						
						
						if (infoObject.info.secureToken != undefined)
							nc.call("secureTokenResponse", null, null);
						
						
						
						
						
						
					} else if (infoObject.info.code == "NetConnection.Connect.Closed") {
						
					}
				}
			}
			
			
			
			
			private function playUserCamera():void
			{
			
				nsPlay = new NetStream(nc);
				nsPlay.addEventListener(NetStatusEvent.NET_STATUS, netStreamStatusHandler);
				
			
				nsPlay.play(data.toString());// a label name of user 
				videoContainer2.attachNetStream(nsPlay);
				UIComponentVideo1.addChild(videoContainer2);
				
				
			}
			
			
			
			public function publish():void 
			{
				nsPublish = new NetStream(nc);
				nsPublish.addEventListener(NetStatusEvent.NET_STATUS, netStreamStatusHandler);
				
				// set the buffer time to zero since it is 
				nsPublish.bufferTime=0;		
				// attach the camera and microphone to the server
				nsPublish.attachCamera(camera);
				nsPublish.attachAudio(microphone);
				nsPublish.publish( "myusername","record");
				
			}		
			
			public function netStreamStatusHandler(event:NetStatusEvent):void 
			{
				//output.htmlText += "<BR>NetStatus: " + event.info.code;
				if (event.info.code == "NetStream.Seek.Failed" || event.info.code == "NetStream.Play.Failed") {
				} else if (event.info.code == "NetStream.Play.Start") {
					
				} else {
				}
			}



<mx:VBox width="100%" height="100%">
		
		
		<s:BorderContainer width="104" height="104" backgroundColor="black" cornerRadius="5">
			<mx:UIComponent id="UIComponentVideo1"  />
		</s:BorderContainer>
		<mx:Label  text="{data}" textAlign="center" left="30" color="blue" click="nameLabelClickedHandler();" />
	</mx:VBox>