diff --git a/config/services.yaml b/config/services.yaml
index 0a2888bc..57d46ba7 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -56,3 +56,11 @@ services:
         arguments:
             $em: "@doctrine.orm.entity_manager"
             $gmaps_api_key: "%env(GMAPS_API_KEY)%"
+
+    App\Service\RisingTideGateway:
+        arguments:
+            $em: "@doctrine.orm.entity_manager"
+            $user: "%env(RT_USER)%"
+            $pass: "%env(RT_PASS)%"
+            $usage_type: "%env(RT_USAGE_TYPE)%"
+            $shortcode: "%env(RT_SHORTCODE)%"
diff --git a/src/Controller/APIController.php b/src/Controller/APIController.php
index de3e96f7..85016459 100644
--- a/src/Controller/APIController.php
+++ b/src/Controller/APIController.php
@@ -22,6 +22,7 @@ use App\Ramcar\TransactionOrigin;
 use App\Ramcar\TradeInType;
 
 use App\Service\InvoiceCreator;
+use App\Service\RisingTideGateway;
 
 use App\Entity\MobileSession;
 use App\Entity\Customer;
@@ -191,7 +192,7 @@ class APIController extends Controller
         return $res->getReturnResponse();
     }
 
-    public function confirmNumber(Request $req)
+    public function confirmNumber(RisingTideGateway $rt, Request $req)
     {
         // check parameters
         $required_params = [
@@ -218,7 +219,9 @@ class APIController extends Controller
             ->setPhoneNumber($phone_number);
         $em->flush();
 
-        // TODO: send sms to number
+        // send sms to number
+        $message = "Your Resq confirmation code is $code.";
+        $rt->sendSMS($phone_number, 'MOTOLITE', $message);
 
         // response
         return $res->getReturnResponse();
diff --git a/src/Service/RisingTideGateway.php b/src/Service/RisingTideGateway.php
new file mode 100644
index 00000000..ddfb2f79
--- /dev/null
+++ b/src/Service/RisingTideGateway.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Service;
+
+use Doctrine\ORM\EntityManagerInterface;
+use DateTime;
+
+class RisingTideGateway
+{
+    const SERVER_URL        = 'https://xdngw01.wyrls.net/documents';
+
+    // entity manager
+    protected $em;
+
+    // rising tide parameters
+    protected $user;
+    protected $pass;
+    protected $usage_type;
+    protected $shortcode;
+
+    public function __construct(EntityManagerInterface $em, $user, $pass, $usage_type, $shortcode)
+    {
+        $this->em = $em;
+        $this->user = $user;
+        $this->pass = $pass;
+        $this->usage_type = $usage_type;
+        $this->shortcode = $shortcode;
+    }
+
+    public function sendSMS($mobile_num, $mask, $message)
+    {
+        $headers = [
+            'Content-Type: application/vnd.net.wyrls.Document-v3+json'
+        ];
+
+        $date = new DateTime();
+        $date_string = $date->format('Y-m-d') . 'T' . $date->format('H:m:s');
+
+        $data = [
+            'from' => $this->shortcode,
+            'from_alias' => $mask,
+            'to' => $mobile_num,
+            'content_type' => 'text/plain',
+            'body' => $message,
+            'date' => $date_string,
+            'usagetype' => $this->usage_type,
+        ];
+        $data_json = json_encode($data);
+
+        $userpwd = $this->user . ':' . $this->pass;
+
+         $curl = curl_init();
+         curl_setopt($curl, CURLOPT_URL, self::SERVER_URL);
+         curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
+         curl_setopt($curl, CURLOPT_VERBOSE, true);
+         curl_setopt($curl, CURLOPT_POSTFIELDS, $data_json);
+         curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'POST');
+         curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
+         curl_setopt($curl, CURLOPT_USERPWD, $userpwd);
+         $result = curl_exec($curl);
+         error_log('error_no - ' . curl_errno($curl));
+         $http_code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
+         error_log($http_code);
+         curl_close($curl);
+
+         error_log($result);
+    }
+}