diff --git a/doc/Extensions/Alerting.md b/doc/Extensions/Alerting.md
index 3e1efa7617..c4ffcafac1 100644
--- a/doc/Extensions/Alerting.md
+++ b/doc/Extensions/Alerting.md
@@ -400,9 +400,9 @@ Here an example using 3 numbers, any amount of numbers is supported:
 $config['alert']['transports']['playsms']['url']   = 'https://localhost/index.php?app=ws';
 $config['alert']['transports']['playsms']['user']  = 'user1';
 $config['alert']['transports']['playsms']['token'] = 'MYFANCYACCESSTOKEN';
+$config['alert']['transports']['playsms']['from']  = '+1234567892'; //Optional
 $config['alert']['transports']['playsms']['to'][]  = '+1234567890';
 $config['alert']['transports']['playsms']['to'][]  = '+1234567891';
-$config['alert']['transports']['playsms']['to'][]  = '+1234567892';
 ```
 ~~
 
diff --git a/includes/alerts/transport.playsms.php b/includes/alerts/transport.playsms.php
index f2fa71caba..812ae4ffea 100644
--- a/includes/alerts/transport.playsms.php
+++ b/includes/alerts/transport.playsms.php
@@ -21,7 +21,10 @@
  * @subpackage Alerts
  */
 
-$data = array("u" => $opts['user'], "h" => $opts['token'], "to" => implode(',',$opts['to']), "msg" => $obj['title'],);
+$data = array("u" => $opts['user'], "h" => $opts['token'], "to" => implode(',',$opts['to']), "msg" => $obj['title']);
+if (!empty($opts['from'])) {
+    $data["from"] = $opts['from'];
+}
 $url  = $opts['url'].'&op=pv&'.http_build_query($data);
 $curl = curl_init($url);