diff --git a/createlinks b/createlinks
index b4dbe4cbe..6df87a112 100755
--- a/createlinks
+++ b/createlinks
@@ -19,6 +19,7 @@ event_templates('nethcti-server3-update', qw(
                 /etc/nethcti/chat.json
                 /etc/nethcti/phone_urls.json
                 /etc/httpd/conf.d/nethcti-server.conf
+                /etc/sysconfig/subscription
 ));
 
 event_actions('nethcti-server3-update', qw(
@@ -99,3 +100,15 @@ $event = "post-restore-data";
 event_actions($event,
    'nethcti-server-fix-rsync-perms' => '10',
 );
+
+#
+# nethserver-subscription-save
+#
+$event = "nethserver-subscription-save";
+event_templates($event, qw(
+    /etc/sysconfig/subscription
+));
+
+event_services($event, qw(
+    nethcti-server restart
+));
diff --git a/root/etc/e-smith/templates/etc/sysconfig/subscription/10subscription b/root/etc/e-smith/templates/etc/sysconfig/subscription/10subscription
new file mode 100644
index 000000000..b3e6446d3
--- /dev/null
+++ b/root/etc/e-smith/templates/etc/sysconfig/subscription/10subscription
@@ -0,0 +1,10 @@
+{
+    #
+    # 10subscription
+    #
+    my $systemId = $subscription{'SystemId'} || '';
+    my $secret = $subscription{'Secret'} || '';
+    $enabled = ($systemId eq '' || $secret eq '') ? 0 : 1;
+
+    $OUT = "SUBSCRIPTION_SYSTEMID=$systemId\nSUBSCRIPTION_SECRET=$secret\n";
+}
diff --git a/root/usr/lib/node/nethcti-server/plugins/com_user_rest/plugins_rest/user.js b/root/usr/lib/node/nethcti-server/plugins/com_user_rest/plugins_rest/user.js
index c47b0efb6..424445152 100644
--- a/root/usr/lib/node/nethcti-server/plugins/com_user_rest/plugins_rest/user.js
+++ b/root/usr/lib/node/nethcti-server/plugins/com_user_rest/plugins_rest/user.js
@@ -1,3 +1,5 @@
+var crypto = require('crypto');
+
 /**
  * Provides user functions through REST API.
  *
@@ -705,6 +707,17 @@ function setCompUtil(comp) {
               logger.log.info(IDLOG, 'send user info to user "' + username + '"');
               res.send(200, result);
             });
+
+            // get LK and secret hash
+            var subscription_systemid = process.env.SUBSCRIPTION_SYSTEMID;
+            var subscription_secret = process.env.SUBSCRIPTION_SECRET;
+            if (subscription_systemid && subscription_secret) {
+              var hash = crypto.createHash('sha256');
+              hash.update(subscription_systemid + ":" + subscription_secret);
+              result.lkhash = hash.digest('hex');
+            } else {
+              logger.log.info(IDLOG, "LK not enabled");
+            }
           } else {
             var strerr = 'sending user info to user "' + username + '": wrong format';
             logger.log.error(IDLOG, strerr);
diff --git a/root/usr/lib/systemd/system/nethcti-server.service b/root/usr/lib/systemd/system/nethcti-server.service
index 21844963a..d8298652d 100644
--- a/root/usr/lib/systemd/system/nethcti-server.service
+++ b/root/usr/lib/systemd/system/nethcti-server.service
@@ -5,6 +5,7 @@ After=asterisk.service
 
 [Service]
 Type=simple
+EnvironmentFile=/etc/sysconfig/subscription
 WorkingDirectory=/usr/lib/node/nethcti-server
 User=asterisk
 Restart=always