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How to connect to Internet Using Blackberry

In the blackberry there are many standard connection methods.

  1. BES/MDS
  2. Direct TCP
  3. WiFi

But in these methods some times will not work on all the careers so their is a another undocumented method that you  can use.

package com.rdmcorp.itms.sdm.DataService;

import net.rim.device.api.servicebook.ServiceBook;
import net.rim.device.api.servicebook.ServiceRecord;
import net.rim.device.api.system.CoverageInfo;
import net.rim.device.api.system.DeviceInfo;
import net.rim.device.api.system.WLANInfo;

public class ConnectionCreator {

public static String getConnectionString() throws ServerException
{
String connectionString = null;

// Simulator behavior is controlled by the USE_MDS_IN_SIMULATOR variable.
if(DeviceInfo.isSimulator())
{
connectionString = ";deviceside=true";
}

// Wifi is the preferred transmission method
else if(WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
{
//logMessage("Device is connected via Wifi.");
connectionString = ";interface=wifi";
}

// Is the carrier network the only way to connect?
else if((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT)
{

String carrierUid = getCarrierBIBSUid();
if(carrierUid == null)
{
// Has carrier coverage, but not BIBS. So use the carrier's TCP network
connectionString = ";deviceside=true";
}
else
{
// otherwise, use the Uid to construct a valid carrier BIBS request
connectionString = ";deviceside=false;connectionUID="+carrierUid + ";ConnectionType=mds-public";
}
}

// Check for an MDS connection instead (BlackBerry Enterprise Server)
else if((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS)
{
connectionString = ";deviceside=false";
}

// If there is no connection available abort to avoid bugging the user unnecssarily.
else if(CoverageInfo.getCoverageStatus() == CoverageInfo.COVERAGE_NONE)
{
ServerException exception = new ServerException(000,"No connection found");

throw exception;
}

// In theory, all bases are covered so this shouldn't be reachable.
else
{
connectionString = ";deviceside=true";
}

return connectionString;
}

/**
* Looks through the phone's service book for a carrier provided BIBS network
* @return The uid used to connect to that network.
*/
private static String getCarrierBIBSUid()
{
ServiceRecord[] records = ServiceBook.getSB().getRecords();
int currentRecord;

for(currentRecord = 0; currentRecord < records.length; currentRecord++)
{
if(records[currentRecord].getCid().toLowerCase().equals("ippp"))
{
if(records[currentRecord].getName().toLowerCase().indexOf("bibs") >= 0)
{
return records[currentRecord].getUid();
}
}
}

return null;
}
}

Comments

Bernardo Assis said…
Awesome!!! If this class works fine, is the major solution for all connection problems for blackberry devices!
Unknown said…
How could this be modified to pull the UID'S from CISCO or Linksys IP phones?

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