Blackberry Push Client Application Blackberry Registration failed - blackberry

Question

I am quite new to blackberry application development and i need to create an application which can receive push notifications.
I have created the application and was trying to use xtify for pushing notifications to devices.
I have registered with rim for the push evaluation and got the credentials like url,app id,password etc.
When the application launches , i create a new thread to perform the push registration process.
I try to send an http Get request to the push evaluation url for registering the device.When i try to open a connection,i get the io exception,invalid url parameter.
I am using a wifi connection for network connectivity in device. I donot have a sim in the device.
The url is
http://cpXXX.pushapi.eval.blackberry.com/mss/PD_subReg?serviceid='My Application Id'&osversion='My OS Version'&model='Device Model';deviceside=false;ConnectionType=mds-public
Below is the code i use to send the request.
DataBuffer buffer = new DataBuffer(256, false);
httpUrl = "http://cpXXX.pushapi.eval.blackberry.com/mss/PD_subReg?serviceid='My Application Id'&osversion='My OS Version'&model='Device Model';deviceside=false;ConnectionType=mds-public"
InputStream inputStream = null;
Connection conn = null;
HttpConnection httpConn = null;
try {
httpUrl ;
conn = Connector.open(httpUrl);
if (conn instanceof HttpConnection) {
httpConn = (HttpConnection) conn;
int responseCode = httpConn.getResponseCode();
if(responseCode == 200){
inputStream = httpConn.openInputStream();
int length = inputStream.read(buffer.getArray());
buffer.setLength(length);
String response = new String( buffer.getArray(), buffer.getArrayStart(), buffer.getArrayLength() );
return response;
}else {
throw new IOException( "Http error: " + responseCode);
}
}
else {
throw new IOException("Can not make HTTP connection for URL '"
+ httpUrl + "'");
}
}
finally {
if (httpConn != null) {
try {
httpConn.close();
} catch (IOException e) {
System.out.println(e.getMessage());
e.printStackTrace();
}
}
close(conn, inputStream, null);
}
Please help me. I am waiting for replies. I have been stuck with this for days. Please advice. Anyone have idea where i can get a documentation for the device registration api ??

Answer 1

Thanx to the advice of #Black Pearl , I was able to resolve the issue. Inorder for the blackberry registration to work , you need an active BIS connection. I had been trying it with wifi connectivity and hence it was not working.