Bluetooth service search

I'm going to write a program searching fo services on other devices. It works well on other mobile phones, but when my application looks for services on devices like a headset the servicesDiscovered method is never been invoked.
I'm using the searchServices method of the DiscoveryAgent class, with attributes and UUID for a BrowseGroupList.
My question is, is it possible to search for services on devices like headsets otherwise?

Thanks for your reply. I have tested it with the attribute for service names, i.e.
attrSet = new int[]{ 0x0100 }; // Service nameIt didn't help, though.

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Hi there,
I am developing a client/server bluetooth messaging application and seem to have to run into a brick wall. I am able to perform a device discovery, and the client is able to locate the server, however I am not able to locate the service on the server even though the server and the client are both using the same UUID and service name.
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The UUID and service name I am using is:
48dd1cf559bb41009d0686f7862d26a2
serverand below is the code for my class that I implement the device and services discovery in:
import javax.microedition.io.*;
import java.util.*;
import java.io.*;
import javax.bluetooth.*;
public class SearchForServices implements DiscoveryListener
    private MessageClient client;
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    private String nameOfService; // Name of service
    private LocalDevice local; //local device
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    private DiscoveryAgent discover;
    //store list of found devices
    private Vector devicesFound;
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    private Hashtable servicesFound;
    private boolean searchComplete;
    private boolean terminateSearch;
    public SearchForServices(MessageClient client, String uuid, String nameOfService)
        //create the discovery listener and then perform device and services search
        this.client = client;
        this.StrUUID = uuid;
        this.nameOfService = nameOfService;
         //create service search data structure
        this.servicesFound = new Hashtable();
        try
            //get discovery agent
            local = LocalDevice.getLocalDevice();
            discover = local.getDiscoveryAgent();
            //create storage for device search
            devicesFound = new Vector();
            //begin search: first devices, then services
            this.client.modifyStatus("Searching for devices...");
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        catch(Exception e)
            this.client.reportError("Unable to perform search");
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        // a matching device is found.Only store if it's a PC or phone
        int highRankDevice = rank.getMajorDeviceClass();
        int lowRankDevice = rank.getMinorDeviceClass();
        //restrict devices
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        try
            name = remote.getFriendlyName(false);
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        showInquiryStatus(inquiryMode);
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        if(inquiryMode == INQUIRY_COMPLETED)
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            this.client.modifyStatus("Device Search Terminated");
        else if(inquiryMode == INQUIRY_ERROR)
            this.client.modifyStatus("Error searching for devices");
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                break;
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                try
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                catch(Exception e)
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            if(records[i] != null)
                //get service records name
                DataElement servNameElem = records.getAttributeValue(0x0100);
String sName = (String)servNameElem.getValue();
//terminate search
this.terminateSearch = true;
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servicesFound.put(deviceName(rem), records[i]); //add to hashtable
public void serviceSearchCompleted(int transID, int respCode)
//wake up the waiting thread for this search, enabling the next services
//search to commence
this.searchComplete = true;
synchronized(this)
this.notifyAll();
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Thanks, I do appreciate..

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