JSR-82

Hello folks,
we are developing a client/server java application that relys on bluetooth for exchaning data between 2 mobile phones. The client is connecting to the server over 'rfcomm' and receiving an image from the server of about 50K. For the complete data exchange it takes about 6 seconds, which is really really a lot (this makes a few Kbit/sec data rate..)!!!
I'm attaching below the java code we are using.

Suggestions are more than welcome!

Thanks in advance for any help!!

Iacopo

CLIENT:
------------
DataOutputStream dOut = new DataOutputStream(dOut.writeInt(data.length);
dOut.write(data);
dOut.close();

SERVER:
------------
for (len = din.read(buf); len > 0; len = din.read(buf)) {
     bout.write(buf, 0, len);
}
data = bout.toByteArray();

It depends on the JSR 82 stack that you are using. It shouldnt be this much slow