diff --git a/rtcllm/wss.py b/rtcllm/wss.py
index 8ea5c7c..964ee1d 100644
--- a/rtcllm/wss.py
+++ b/rtcllm/wss.py
@@ -11,23 +11,37 @@ class Wss:
 		session_type: p2p, aba, meeting
 	
 	signaling data format
+	create a new session
 	{
-		type:callRequest,
-		sessionid:kkkk,
-		sessiontype:...
+		type:new_session,
+		session:{
+			sessiontype:
+			sessionid
+		}
 		from:
 		to:
 	}
+	(will boastcast to all peer online)login:
+	{
+		type:login,
+		from:
+	}
+	(will boastcast to all peer online)logout:
+	{
+		type:logout
+		from:
+	}
 	"""
-	def __init__(self, app, wss_url, info=None, handler_name='sessionid'):
+	def __init__(self, app, wss_url, info=None, opts={}):
 		self.wss_url = wss_url
 		if info is None:
 			info = {
 				'id':getID()
 			}
-		self.ifno = info
+		self.opts = opts
+		self.info = info
 		self.ws = None
-		self.handler_name = handler_name
+		self.handler_name = 'sessionid'
 		self.app = app
 		self.running = False
 		self.app.wss = self
@@ -58,14 +72,24 @@ class Wss:
 				handler = self.recvdata_handler
 			await handler(data)
 	
+	def add_peer(self, info):
+		self.peers = [ i for i in self.peers if i.id != info.id ]
+		self.peers.append(info)
+	
+	def delete_peer(self, info):
+		self.peers = [ i for i in self.peers if i.id != info.id ]
+	
 	async def recvdata_handler(self, data):
-		if data.type == 'info':
-			
+		if data.type == 'login':
+			self.add_peer(data.msgfrom)
 			return
-		if data.type == 'session'
-			h = self.sessionhandlers.get(data.sessiontype)
+		if data.type == 'logout':
+			self.delete_peer(data.msgfrom)
+			return
+		if data.type == 'new_session'
+			h = self.sessionhandlers.get(data.session.sessiontype)
 			i = h(data.from)
-			k = data.get(self.handler_name)
+			k = data.session.sessionid
 			self.add_handler(k, i.recvdata_handler)
 			return
 
@@ -81,7 +105,7 @@ class Wss:
 		await self.start()
 
 	async def send(self, dic):
-		dic['from'] = self.info
+		dic.msgfrom = self.info
 		txt = json.dumps(dic)
 		try:
 			return await self.ws.send(txt)
@@ -89,14 +113,30 @@ class Wss:
 			await self.restart()
 			return self.send(dic)
 	
+	async def new_session(self, sessiontype, opts):
+		k = self.sessionhandlers.get(sessiontype)
+		if k is None:
+			e = Exception(f'Sessiontype({sessiontype}) not registed')
+			exception(f'new_session() exception {e}')
+			raise e
+		d = DictObject()
+		d.type = 'new_session'
+		d.msgfrom = self.info
+		sessionid = getID()
+		d.session = DictObject(sessiontype=sessiontype, sessionid=sessionid)
+		await self.send(d)
+		h = k(self, sessionid, opts)
+		self.add_sessionhandler(sessionid, h.recvdata_handler)
+		return h
+
 	async def login(self):
 		d = DictObject()
-		d['from'] = self.info
+		d.msgfrom = self.info
 		d.type = 'login'
 		await self.send(d)
 	
 	async def logout(self):
 		d = DictObject()
-		d['from'] = self.info
+		d.msgfrom = self.info
 		d.type = 'logout'
 		await self.send(d)