add handling of which the sipPhone user didn't login or the sipPhone didn't bind any login user

src/main/java/com/ctrip/fun/admin/eventhandler/NewStateWebSocket.java

@@ -76,6 +76,10 @@ public class NewStateWebSocket {
 	public static void unicast(String username, String mobileNo) {
 		String message = "/system/user/"+mobileNo+"/detailByUid";
 		Session session = sessionMap.get(username);
+		if(session == null){
+			System.out.println("Callcenter pop window:分机号"+username+"没有绑定任何账户或者绑定的账户没有登录。无法为其弹窗");
+			return ;
+		}
 		try {
 			session.getBasicRemote().sendText(message);
 		} catch (Exception e) {