diff --git a/_unlock b/_unlock
new file mode 100644
index 0000000000..d86bac9de5
--- /dev/null
+++ b/_unlock
@@ -0,0 +1 @@
+OK
diff --git a/config.js b/config.js
index 2428c6b427..a40f5556fe 100644
--- a/config.js
+++ b/config.js
@@ -49,7 +49,8 @@ var config = {
     bosh: 'https://jitsi-meet.example.com/' + subdir + 'http-bind',
 
     // Websocket URL (XMPP)
-    // websocket: 'wss://jitsi-meet.example.com/' + subdir + 'xmpp-websocket',
+    websocket: 'wss://jitsi-meet.example.com/' + subdir + 'xmpp-websocket',
+    websocketKeepAliveUrl: 'https://jitsi-meet.example.com/' + subdir + '_unlock',
 
     // Whether BOSH should be preferred over WebSocket if both are configured.
     // preferBosh: false,
diff --git a/doc/debian/jitsi-meet-prosody/prosody.cfg.lua-jvb.example b/doc/debian/jitsi-meet-prosody/prosody.cfg.lua-jvb.example
index fdf07eb1f8..38b19a1b4b 100644
--- a/doc/debian/jitsi-meet-prosody/prosody.cfg.lua-jvb.example
+++ b/doc/debian/jitsi-meet-prosody/prosody.cfg.lua-jvb.example
@@ -38,6 +38,11 @@ unlimited_jids = {
     "jvb@auth.jitmeet.example.com"
 }
 
+-- https://prosody.im/doc/modules/mod_smacks
+smacks_max_unacked_stanzas = 5;
+smacks_hibernation_time = 60;
+smacks_max_old_sessions = 1;
+
 VirtualHost "jitmeet.example.com"
     authentication = "jitsi-anonymous" -- do not delete me
     -- Properties below are modified by jitsi-meet-tokens package config
@@ -58,6 +63,7 @@ VirtualHost "jitmeet.example.com"
     -- we need bosh
     modules_enabled = {
         "bosh";
+        "smacks";
         "ping"; -- Enable mod_ping
         "speakerstats";
         "external_services";
@@ -127,6 +133,13 @@ VirtualHost "auth.jitmeet.example.com"
     authentication = "internal_hashed"
     smacks_hibernation_time = 15;
 
+VirtualHost "recorder.jitmeet.example.com"
+    modules_enabled = {
+      "smacks";
+    }
+    authentication = "internal_hashed"
+    smacks_max_old_sessions = 2000;
+
 -- Proxy to jicofo's user JID, so that it doesn't have to register as a component.
 Component "focus.jitmeet.example.com" "client_proxy"
     target_address = "focusUser@auth.jitmeet.example.com"
diff --git a/doc/debian/jitsi-meet/jitsi-meet.example b/doc/debian/jitsi-meet/jitsi-meet.example
index 23e781d103..0ea213dbad 100644
--- a/doc/debian/jitsi-meet/jitsi-meet.example
+++ b/doc/debian/jitsi-meet/jitsi-meet.example
@@ -150,6 +150,12 @@ server {
     #    alias /usr/share/jitsi-meet/load-test/libs/$1;
     #}
 
+    location = /_unlock {
+        add_header 'Access-Control-Allow-Origin' '*';
+        add_header Strict-Transport-Security 'max-age=63072000; includeSubDomains';
+        add_header "Cache-Control" "no-cache, no-store";
+    }
+
     location ~ ^/conference-request/v1(\/.*)?$ {
         proxy_pass http://127.0.0.1:8888/conference-request/v1$1;
         add_header "Cache-Control" "no-cache, no-store";