diff --git a/application/Address/AddressModel.php b/application/Address/AddressModel.php
index 968a52a94..9bfec03d1 100644
--- a/application/Address/AddressModel.php
+++ b/application/Address/AddressModel.php
@@ -15,6 +15,18 @@ class AddressModel {
   public $fax = null;
   public $mobile = null;
   public $email = null;
+  public $uid;
+  public $billing_type;
+  public $billing_delivery;
+  public $bank_account_bank;
+  public $bank_account_owner;
+  public $bank_account_iban;
+  public $bank_account_bic;
+  public $allow_contact;
+  public $allow_spin;
+  
+  
+  
   public $note = null;
   
   public $create_by = null;
@@ -34,10 +46,10 @@ class AddressModel {
     $me = new User();
     $me->loadMe();
 
-    if($model->create_by === null) {
+    if(!is_numeric($model->create_by) && !$model->create_by) {
       $model->create_by = $me->id;
     }
-    if($model->edit_by === null) {
+    if(!is_numeric($model->edit_by) && !$model->edit_by) {
       $model->edit_by = $me->id;
     }
     
@@ -47,20 +59,23 @@ class AddressModel {
     
     return $model;
   }
-  
-  public static function getOne($id) {
-    if(!is_numeric($id) || !$id) {
-      throw new Exception("Invalid number", 400);
-    }
-    $item = [];
+
+  public static function getFirst($filter = null) {
     $db = FronkDB::singleton();
     
-    $res = $db->select("Address", "*", "id=$id LIMIT 1");
+    $where = self::getSqlFilter($filter);
+    //mfLoghandler::singleton()->debug($where);
+    $res = $db->select("Address", "*", "$where ORDER BY company, lastname, firstname, zip, city LIMIT 1");
     if($db->num_rows($res)) {
       $data = $db->fetch_object($res);
-      $item = new Address($data);
+      $item = new Voicenumber($data);
+      if($item->id) {
+        return $item;
+      } else {
+        return null;
+      }
     }
-    return $item;
+    return null;
   }
   
   public static function getAll() {
@@ -130,7 +145,7 @@ class AddressModel {
               WHERE $where
               GROUP BY Address.id
             ) as tbl";
-    mfLoghandler::singleton()->debug($sql);
+    //mfLoghandler::singleton()->debug($sql);
     
     $res = $db->query($sql);
     if($db->num_rows($res)) {
@@ -166,7 +181,7 @@ class AddressModel {
       }
     }
     
-    mfLoghandler::singleton()->debug($sql);
+    //mfLoghandler::singleton()->debug($sql);
     
     $res = $db->query($sql);
     if($db->num_rows($res)) {
diff --git a/application/Building/BuildingModel.php b/application/Building/BuildingModel.php
index cda045cb8..8b6d975f6 100644
--- a/application/Building/BuildingModel.php
+++ b/application/Building/BuildingModel.php
@@ -50,19 +50,21 @@ class BuildingModel {
     return $model;
   }
   
-  public static function getOne($id) {
-    if(!is_numeric($id) || !$id) {
-      throw new Exception("Invalid number", 400);
-    }
-    $item = [];
+  public static function getFirst() {
     $db = FronkDB::singleton();
     
-    $res = $db->select("Building", "*", "id=$id LIMIT 1");
+    $where = self::getSqlFilter($filter);
+    $res = $db->select("Building", "*", "$where ORDER BY network_id,pop_id,street,zip,city LIMIT 1");
     if($db->num_rows($res)) {
       $data = $db->fetch_object($res);
       $item = new Building($data);
+      if($item->id) {
+        return $item;
+      } else {
+        return null;
+      }
     }
-    return $item;
+    return null;
   }
   
   public static function getAll() {
diff --git a/application/File/FileModel.php b/application/File/FileModel.php
index 859847cb8..4e02e6cb8 100644
--- a/application/File/FileModel.php
+++ b/application/File/FileModel.php
@@ -70,7 +70,7 @@ class FileModel {
     $db = FronkDB::singleton();
     
     $where = self::getSqlFilter($filter);
-    $res = $db->select("File", "*", "$where ORDER BY name, filename");
+    $res = $db->select("File", "*", "$where ORDER BY name, filename LIMIT 1");
     if($db->num_rows($res)) {
       $data = $db->fetch_object($res);
       $item = new File($data);
diff --git a/application/IvtCustomer/IvtCustomer.php b/application/IvtCustomer/IvtCustomer.php
index a5dbee8c4..28715f74c 100644
--- a/application/IvtCustomer/IvtCustomer.php
+++ b/application/IvtCustomer/IvtCustomer.php
@@ -13,7 +13,7 @@ class IvtCustomer extends mfBaseModel {
     $this->data = new stdClass();
     $this->table = "customers";
     
-    $this->db = new FronkDB(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
+    $this->db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
     
 		if(is_numeric($_)) {
       $this->fetch($_);
diff --git a/application/IvtCustomer/IvtCustomerModel.php b/application/IvtCustomer/IvtCustomerModel.php
new file mode 100644
index 000000000..0471a163b
--- /dev/null
+++ b/application/IvtCustomer/IvtCustomerModel.php
@@ -0,0 +1,89 @@
+<?php
+
+class IvtCustomerModel {
+
+  public static function create(Array $data) {
+    throw new Exception("Please use IvtCustomerController to create IvtCustomers");
+  }
+  
+  public static function getAll() {
+    $items = [];
+    
+    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
+    
+    $res = $db->select("customers", "*", "1=1 ORDER BY id");
+    if($db->num_rows($res)) {
+      while($data = $db->fetch_object($res)) {
+        $items[] = new IvtCustomer($data);
+      }
+    }
+    return $items;
+  }
+  
+  public static function getFirst() {
+    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
+    
+    $where = self::getSqlFilter($filter);
+    $res = $db->select("customers", "*", "$where ORDER BY id LIMIT 1");
+    if($db->num_rows($res)) {
+      $data = $db->fetch_object($res);
+      $item = new IvtCustomer($data);
+      if($item->id) {
+        return $item;
+      } else {
+        return null;
+      }
+    }
+    return null;
+  }
+  
+  public static function search($filter, $limit = false) {
+    $items = [];
+    $db = FronkDB::singleton(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
+    
+    $where = self::getSqlFilter($filter);
+    $sql = "SELECT * FROM customers $where ORDER by id";
+    
+    mfLoghandler::singleton()->debug($sql);
+    if(is_array($limit) && count($limit)) {
+      if(is_numeric($limit['start']) && is_numeric($limit['count'])) {
+        $sql .= " LIMIT ".$limit['start'].", ".$limit['count'];
+      } elseif(is_numeric($count)) {
+        $sql .= " LIMIT ".$limit['count'];
+      }
+    }
+    
+    $res = $db->query($sql);
+    if($db->num_rows($res)) {
+      while($data = $db->fetch_object($res)) {
+        $items[] = new IvtCustomer($data);
+      }
+    }
+    return $items;
+  }
+  
+  private function getSqlFilter($filter) {
+    $where = "1=1 ";
+    
+    /*
+    if(array_key_exists("status_id", $filter)) {
+      $status_id = $filter['status_id'];
+      if(is_numeric($status_id)) {
+        $where .= " AND IvtCustomer.status_id=$status_id";
+      }
+    }
+    
+    
+    if(array_key_exists("street", $filter)) {
+      $street = FronkDB::singleton()->escape($filter["street"]);
+      if($street) {
+        $where .= " AND street like '%$street%'";
+      }
+    }
+    */
+    
+    //var_dump($filter, $where);exit;
+    return $where;
+  }
+  
+}
diff --git a/lib/FronkDB/FronkDB.php b/lib/FronkDB/FronkDB.php
index 6af16b575..686130d63 100644
--- a/lib/FronkDB/FronkDB.php
+++ b/lib/FronkDB/FronkDB.php
@@ -6,7 +6,8 @@ class FronkDB {
 	private $lastError;
   private $log;
 
-	private static $instance;
+  private static $instances = [];
+	//private static $instance;
 
 	public function __construct($host=false,$user=false,$pass=false,$db=false) {
 		$this->host=$host;
@@ -24,11 +25,12 @@ class FronkDB {
 	}
 	
 	public static function singleton($host=false,$user=false,$pass=false,$db=false) {
-			if(!isset(self::$instance)) {
-			$c=__CLASS__;
-			self::$instance=new $c($host,$user,$pass,$db);
+    $instance_name = $host.$user.$db;
+			if(!isset(self::$instances[$instance_name])) {
+			$c = __CLASS__;
+			self::$instances[$instance_name] = new $c($host,$user,$pass,$db);
 		}
-		return self::$instance;
+		return self::$instances[$instance_name];
 	}
 	
 	private function connect() {
diff --git a/scripts/import_customers_from_ivt.php b/scripts/import_customers_from_ivt.php
new file mode 100644
index 000000000..a9d59da84
--- /dev/null
+++ b/scripts/import_customers_from_ivt.php
@@ -0,0 +1,103 @@
+#!/usr/bin/php
+<?php
+
+// ivtcustomer id blacklist
+$blacklist = [3805];
+
+//require 'vendor/autoload.php';
+require("../config/config.php");
+
+define('FRONKDB_SQLDEBUG',false);
+error_reporting(E_ALL & ~(E_NOTICE | E_STRICT | E_DEPRECATED));
+
+require_once(LIBDIR."/mvcfronk/mfRouter/mfRouter.php");
+require_once(LIBDIR."/mvcfronk/mfBase/mfBaseModel.php");
+require_once(LIBDIR."/mvcfronk/mfBase/mfBaseController.php");
+
+$me = new User(1);
+
+//$db = FronkDB::singleton();
+//$ivt = new FronkDB(IVT_DBHOST, IVT_DBUSER, IVT_DBPASS, IVT_DBNAME);
+
+foreach(IvtCustomerModel::getAll() as $cust) {
+  //var_dump($cust);exit;
+  if(!$cust->id) {
+    continue;
+  }
+  foreach(['deleted', 'deletet'] as $word) {
+    if(strtolower($cust->company) == $word || strtolower($cust->surname) == $word) {
+      continue 2;
+    }
+  }
+  
+  if(in_array($cust->id, $blacklist)) {
+    // dont import blacklisted customer ids
+    echo $cust->id. " in blacklist\n";
+    continue;
+  }
+  
+  $address = AddressModel::getFirst(['customer_number' => $cust->id]);
+  if(is_object($address) && $address->id) {
+    continue;
+  }
+  
+  // new customer
+  
+  $address_data['customer_number'] = $cust->id;
+  $address_data['spin'] = $cust->MandatID;
+  $address_data['company'] = $cust->company;
+  $address_data['firstname'] = $cust->firstname;
+  $address_data['lastname'] = $cust->surname;
+  $address_data['street'] = $cust->street;
+  if(!empty($cust->housenumber)) {
+    $address_data['street'] .= " ".$cust->housenumber;
+  }
+  $address_data['zip'] = $cust->zip;
+  $address_data['city'] = $cust->location;
+  $address_data['country'] = "";
+  $address_data['phone'] = $cust->phone;
+  $address_data['fax'] = "";
+  $address_data['mobile'] = "";
+  $address_data['email'] = $cust->email;
+  $address_data['note'] = $cust->extrainfo;
+  
+  $address_data['uid'] = ($cust->UID) ? $cust->UID : null;
+  $address_data["bank_account_bank"] = "";
+  $address_data["bank_account_owner"] = ($cust->company) ? $cust->company : $cust->firstname . " " . $cust->surname;
+  $address_data["bank_account_iban"] = $cust->IBAN;
+  $address_data["bank_account_bic"] = $cust->BIC;
+  
+  if($cust->payment == 0 ) { // 0 = sepa / 1 = rechnung
+    $address_data['billing_type'] = "sepa";
+  } else {
+    $address_data['billing_type'] = "invoice";
+  }
+  
+  if($cust->paper_invoice == 1) {
+    $address_data["billing_delivery"] = "paper";
+  } else {
+    $address_data["billing_delivery"] = "email";
+  }
+  
+  if($cust->accept_adver == 2) {
+    $address_data["allow_contact"] = 1;
+  } else {
+    $address_data["allow_contact"] = 0;
+  }
+  
+  if($cust->accept_info == 2) {
+    $address_data["allow_spin"] = 1;
+  } else {
+    $address_data["allow_spin"] = 0;
+  }
+  
+  $address_data['create_by'] = $me->id;
+  $address_data['edit_by'] = $me->id;
+  
+  $address = AddressModel::create($address_data);
+  
+  if(!$address->save()) {
+    echo "Error creating address";
+  }
+  //exit;
+}
\ No newline at end of file