diff --git a/src/modules/sl/README b/src/modules/sl/README
index 2091f2486d2..71825ac9194 100644
--- a/src/modules/sl/README
+++ b/src/modules/sl/README
@@ -22,6 +22,8 @@ Daniel-Constantin Mierla
               2.2. default_reason (str)
               2.3. bind_tm (int)
               2.4. rich_redirect (int)
+              2.5. event_callback_fl_ack (str)
+              2.6. event_callback_lres_sent (str)
 
         3. Functions
 
@@ -68,10 +70,12 @@ Daniel-Constantin Mierla
    1.2. default_reason example
    1.3. bind_tm example
    1.4. rich_redirect example
-   1.5. sl_send_reply usage
-   1.6. send_reply usage
-   1.7. sl_reply_error usage
+   1.5. event_callback_fl_ack example
+   1.6. event_callback_lres_sent example
+   1.7. sl_send_reply usage
    1.8. send_reply usage
+   1.9. sl_reply_error usage
+   1.10. send_reply usage
 
 Chapter 1. Admin Guide
 
@@ -84,6 +88,8 @@ Chapter 1. Admin Guide
         2.2. default_reason (str)
         2.3. bind_tm (int)
         2.4. rich_redirect (int)
+        2.5. event_callback_fl_ack (str)
+        2.6. event_callback_lres_sent (str)
 
    3. Functions
 
@@ -158,6 +164,8 @@ Chapter 1. Admin Guide
    2.2. default_reason (str)
    2.3. bind_tm (int)
    2.4. rich_redirect (int)
+   2.5. event_callback_fl_ack (str)
+   2.6. event_callback_lres_sent (str)
 
 2.1. default_code (int)
 
@@ -208,6 +216,32 @@ modparam("sl", "bind_tm", 0)  # feature disabled
 modparam("sl", "rich_redirect", 3)
 ...
 
+2.5. event_callback_fl_ack (str)
+
+   The name of the KEMI callback function to be executed instead of
+   event_route[sl:filtered-ack]. This function receives a string
+   parameter.
+
+   Default value: not set.
+
+   Example 1.5. event_callback_fl_ack example
+...
+modparam("sl", "event_callback_fl_ack", "ksr_event_sl_filtered_ack")
+...
+
+2.6. event_callback_lres_sent (str)
+
+   The name of the KEMI callback function to be executed instead of
+   event_route[sl:local-response]. This function receives a string
+   parameter.
+
+   Default value: not set.
+
+   Example 1.6. event_callback_lres_sent example
+...
+modparam("sl", "event_callback_lres_sent", "ksr_event_sl_local_response")
+...
+
 3. Functions
 
    3.1. sl_send_reply(code, reason)
@@ -236,7 +270,7 @@ modparam("sl", "rich_redirect", 3)
      * code - Return code.
      * reason - Reason phrase.
 
-   Example 1.5. sl_send_reply usage
+   Example 1.7. sl_send_reply usage
 ...
 sl_send_reply("404", "Not found");
 ...
@@ -256,7 +290,7 @@ sl_send_reply("404", "Not found");
    be used on ONREPLY_ROUTE executed by tm module (upon a t_on_reply()
    callback).
 
-   Example 1.6. send_reply usage
+   Example 1.8. send_reply usage
 ...
 send_reply("404", "Not found");
 ...
@@ -269,7 +303,7 @@ send_reply("403", "Invalid user - $fU");
    error. Usually this function should be used after a script function
    that returned an error code.
 
-   Example 1.7. sl_reply_error usage
+   Example 1.9. sl_reply_error usage
 ...
 sl_reply_error();
 ...
@@ -287,7 +321,7 @@ sl_reply_error();
 
    This function can be used from ONREPLY_ROUTE.
 
-   Example 1.8. send_reply usage
+   Example 1.10. send_reply usage
 ...
 if(status=="408")
     sl_forward_reply("404", "Not found");