Envio de SMS funciona no emulador e não celular!

Neste app que criei o envio do sms ocorre normal no emulador(em que envia um sms para outro emulador instanciado), problema e que ao testar em meu aparelho não funiona o envio!

Será que é porque meu aparelho é dois chips?

[code]import br.com.(**************).R;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.telephony.PhoneNumberUtils;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import android.net.Uri;
import android.content.ContentValues;

public class Sincronia extends Activity implements View.OnClickListener{

Button enviar;
EditText edtNumero;
EditText edtText;
SmsManager smsManager;
PendingIntent sendPI;
PendingIntent deliveredPI;

BroadcastReceiver smsSentReceiver, smsDeliveredReceiver;

private String SENT = "SMS_SENT";
private String DELIVERED = "SMS_DELIVERED";

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.sincronia);
    initComponentes();
    enviar.setOnClickListener(this);

}

@Override
protected void onResume() {
    super.onResume();
    smsSentReceiver=new BroadcastReceiver() {

        @Override
        public void onReceive(Context arg0, Intent arg1) {
            // TODO Auto-generated method stub
            switch (getResultCode()) {
            case Activity.RESULT_OK:
                Toast.makeText(getApplicationContext(), "SMS has been sent", Toast.LENGTH_LONG).show();
                Log.i("SEND","SMS has been sent");
                break;
            case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                Toast.makeText(getApplicationContext(), "Generic Failure", Toast.LENGTH_LONG).show();
                Log.i("SEND","Generic Failure");
                break;
            case SmsManager.RESULT_ERROR_NO_SERVICE:
                Toast.makeText(getApplicationContext(), "No Service", Toast.LENGTH_LONG).show();
                Log.i("SEND","No Service");
                break;
            case SmsManager.RESULT_ERROR_NULL_PDU:
                Toast.makeText(getApplicationContext(), "Null PDU", Toast.LENGTH_LONG).show();
                Log.i("SEND","Null PDU");
                break;
            case SmsManager.RESULT_ERROR_RADIO_OFF:
                Toast.makeText(getApplicationContext(), "Radio Off", Toast.LENGTH_LONG).show();
                Log.i("SEND","Radio Off");
                break;
            default:
                Toast.makeText(getApplicationContext(), "Default", Toast.LENGTH_LONG).show();

            }

        }
    };

    smsDeliveredReceiver=new BroadcastReceiver() {

        @Override
        public void onReceive(Context arg0, Intent arg1) {
            // TODO Auto-generated method stub
            switch(getResultCode()) {
            case Activity.RESULT_OK:
                Toast.makeText(getApplicationContext(), "SMS Delivered", Toast.LENGTH_LONG).show();
                break;
            case Activity.RESULT_CANCELED:
                Toast.makeText(getApplicationContext(), "SMS not delivered", Toast.LENGTH_LONG).show();
                break;
            }
        }
    };

    registerReceiver(smsSentReceiver, new IntentFilter(SENT));
    registerReceiver(smsDeliveredReceiver, new IntentFilter(DELIVERED));

}

public void onPause() {
    super.onPause();
    unregisterReceiver(smsSentReceiver);
    unregisterReceiver(smsDeliveredReceiver);
}


/**
 * Inicializa os componentes da janela
 */
public void initComponentes(){
    enviar = (Button) findViewById(R.id.btSinc);
    edtNumero = (EditText) findViewById(R.id.sincedtnumero);
    edtText = (EditText) findViewById(R.id.sincedttext);
}

public boolean envio(String numero,String mensagem){
    try{
        //Inicializa
        SmsManager smsManager = SmsManager.getDefault();
        sendPI = PendingIntent.getActivity(this, 0, new Intent(SENT), 0);
        deliveredPI = PendingIntent.getBroadcast(this, 0, new Intent(DELIVERED), 0);

        if(PhoneNumberUtils.isWellFormedSmsAddress(numero)){
            Log.i("OK","Feito 1");
            smsManager.sendTextMessage(numero,null,mensagem,sendPI,deliveredPI);
            return true;
        }else{
            Toast.makeText(this,"Falha no SMS - tente novamente!",Toast.LENGTH_LONG).show();
            return false;
        }

    }catch(Exception e){
        Toast.makeText(this,"FALHA",Toast.LENGTH_LONG).show();
        return false;
    }
}
public void salvaMensagem(String numero,String mensagem){
    ContentValues values = new ContentValues(); 
    values.put("address",numero); 
    values.put("body",mensagem);
    getContentResolver().insert(Uri.parse("content://sms/sent"), values);
}
@Override
public void onClick(View v) {
    if(envio(edtNumero.getEditableText().toString(),edtText.getEditableText().toString())){
        salvaMensagem(edtNumero.getEditableText().toString(),edtText.getEditableText().toString());
    }

}

}[/code]

cola ai o manifest.xml, pode estar faltando alguma coisa