diff --git a/NexmoClient/NexmoClient.php b/NexmoClient/NexmoClient.php
index 8abe503..a546cbe 100644
--- a/NexmoClient/NexmoClient.php
+++ b/NexmoClient/NexmoClient.php
@@ -31,18 +31,25 @@ class NexmoClient {
      */
     protected $delivery_phone;
 
+    /**
+     * @var boolean
+     */
+    protected $disable_delivery;
+
     /**
      * @param $api_key
      * @param $api_secret
      * @param string $api_method GET|POST configured in Nexmo API preferences
-     * @param $delivery_phone
+     * @param string $delivery_phone
+     * @param boolean $disable_delivery
      */
-    public function __construct($api_key,$api_secret,$api_method='GET',$delivery_phone) {
+    public function __construct($api_key,$api_secret,$api_method='GET',$delivery_phone,$disable_delivery=false) {
         $this->rest_url = 'https://rest.nexmo.com';
         $this->api_key = $api_key;
         $this->api_secret = $api_secret;
         $this->api_method = $api_method;
         $this->delivery_phone = $delivery_phone;
+        $this->disable_delivery = $disable_delivery;
     }
 
     /**
@@ -111,6 +118,11 @@ class NexmoClient {
             'text'=>$text,
             'status-report-req'=>$status_report_req,
         );
+
+        if($this->disable_delivery) {
+            return null;
+        }
+
         $response = $this->jsonRequest('/sms/json',$params);
 
         if((int)$response['messages'][0]['status']!=0) {
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 408a075..9c2013e 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -1,7 +1,9 @@
 services:
     jhg_nexmo_client:
         class: Jhg\NexmoBundle\NexmoClient\NexmoClient
-        arguments: ["%jhg_nexmo.api_key%","%jhg_nexmo.api_secret%","%jhg_nexmo.api_method%","%jhg_nexmo.delivery_phone%"]
+        arguments: ["%jhg_nexmo.api_key%","%jhg_nexmo.api_secret%",
+                    "%jhg_nexmo.api_method%","%jhg_nexmo.delivery_phone%",
+                    "%jhg_nexmo.disable_delivery%"]
 
     jhg_nexmo_account:
         class: Jhg\NexmoBundle\Managers\AccountManager