diff --git a/doc/sms-forward.md b/doc/sms-forward.md
new file mode 100644
index 0000000..28fc39b
--- /dev/null
+++ b/doc/sms-forward.md
@@ -0,0 +1,36 @@
+Forward received SMS
+====================
+
+[◀ Go back to main README](../README.md)
+
+Description
+-----------
+
+RouterOS can receive SMS. This script forwards SMS as notification.
+
+A broadband interface with SMS support is required.
+
+Requirements and installation
+-----------------------------
+
+Just install the script:
+
+    $ScriptInstallUpdate sms-forward;
+
+... and add a scheduler to run it periodically:
+
+    / system scheduler add interval=2m name=sms-forward on-event="/ system script run sms-forward;" start-time=startup;
+
+Configuration
+-------------
+
+Notification settings are required for e-mail and telegram.
+
+See also
+--------
+
+* [Act on received SMS](sms-action.md)
+
+---
+[◀ Go back to main README](../README.md)  
+[▲ Go back to top](#top)
diff --git a/sms-forward b/sms-forward
index 2ace48d..2045196 100644
--- a/sms-forward
+++ b/sms-forward
@@ -3,6 +3,7 @@
 # Copyright (c) 2013-2020 Christian Hesse <mail@eworm.de>
 #
 # forward SMS to e-mail
+# https://git.eworm.de/cgit/routeros-scripts/about/doc/sms-forward.md
 
 :global Identity;