diff --git a/public/full.js b/public/full.js
index df5b694..52317b5 100644
--- a/public/full.js
+++ b/public/full.js
@@ -37,6 +37,8 @@ const inCallElements = [
   unmuteSelfBtn,
   muteVideoSelfBtn,
   unmuteVideoSelfBtn,
+  lockCallBtn,
+  unlockCallBtn,
   deafSelfBtn,
   undeafSelfBtn,
   controlSliders,
@@ -800,6 +802,14 @@ window.unmuteVideoSelf = () => {
   roomObj.videoUnmute()
 }
 
+window.lockCall = () => {
+  roomObj.lock()
+}
+
+window.unlockCall = () => {
+  roomObj.unlock()
+}
+
 window.deafSelf = () => {
   roomObj.deaf()
 }
diff --git a/views/index.ejs b/views/index.ejs
index 1371f5c..696ea7a 100644
--- a/views/index.ejs
+++ b/views/index.ejs
@@ -153,6 +153,16 @@
               </button>
             </div>
 
+            <div class="btn-group w-100" role="group">
+              <button id="lockCallBtn" class="btn btn-warning px-3 mt-2" onClick="lockCall()" disabled="true">
+                lock room
+              </button>
+              <button id="unlockCallBtn" class="btn btn-warning px-3 mt-2" onClick="unlockCall()"
+                disabled="true">
+                unlock room
+              </button>
+            </div>
+
             <div class="btn-group w-100" role="group">
               <button id="deafSelfBtn" class="btn btn-warning px-3 mt-2" onClick="deafSelf()" disabled="true">
                 Deaf Self