Pc phone connection?

Question

Hello,
I'm currently developing a music-server-application that should work togehter with my phone. The server is run on a computer with a usb-bluetooth-dongle(Cubix). My phone is a SonyEricsson S700i (without JSR-82 Bluetooth).
To the phone I will write a music-client-MIDlet which should be able to send a message to the computer to play a song. The pc should also be able to send a playlist to the client phone.
So now to my question...
How can I make the the phone and pc communicate? Unfortunately the s700i doesn't support JSR-82 ( it's the javax.bluetooth, right? ).
I've tried a little with the CommConnection class but I couldn't get it right. After I had connected the phone via the bluetoothserial(com20) I only got this error:
The requested protocol does not exist com20
I tried different ports but it didn't work.
public class MyConnector implements Runnable{
     CommConnection cc = null;
     InputStream is = null;
     OutputStream os = null;
     boolean running = false;
     boolean listen;
     public void startListener(int port){
          running = true;
          try{
               cc = (CommConnection)Connector.open("comm:com"+port);
               is  = cc.openInputStream();
               os = cc.openOutputStream();
               listen = true;
               new Thread(this).start();
          catch( Exception e){
               RemoteTest.debug(e);
          finally{
               stop();
     public void run(){
        RemoteTest.debug("Running thread");
          if(listen){
            int ch = 0;
            try{
                 while(running) {
                         ch = is.read();
                         System.out.println(ch);
               catch( Exception e ){
                RemoteTest.debug(e);
               finally{
                    stop();
     public void stop(){
        RemoteTest.debug("Stopping thread");
          running = false;
          try{
               is.close();
               os.close();
               cc.close();
          catch( Exception e){
               RemoteTest.debug(e);
}Any ideas?

Answer 1

http://bbs.archlinux.org/viewtopic.php?id=74349
This topic shows how that works without blueman-applet gui. As far I can tell it does the same.
But it still does not work on my mobile phone. Nokia tech specifications say that phone should auto-configure that kind of connection and divert all apps to use it. But that does not happen. Only software update app on my phone tries to use it, but after some 300kb of data, it says that network is not avaliable.
Could it be that something is wrong with NAT or dhcp?
Blueman requests for dhclient, or dnsmasq. I use dhcpd v5, as it is arch default package. And I have installed dnsmasq.
Maybe it is needed to configure dnsmasq? But I dont know what to do, as there is no guides on interenet, most of tutorials use propertary applications like BlueSoeil.