diff --git a/public/full.js b/public/full.js
index 65f2d15..b583d98 100644
--- a/public/full.js
+++ b/public/full.js
@@ -82,6 +82,38 @@ window.playbackEnded = () => {
   })
 }
 
+const parser = new UAParser(window.navigator.userAgent)
+const {
+  ua: userAgent,
+  browser: { name: browserName, version: browserVersion },
+  os: { name: osName, version: osVersion },
+  device: { type: deviceType },
+}= parser.getResult()
+
+window._userVariables = {
+  fullBrowserVersion: browserVersion || '',
+  gmtOffset: (-1.0 * new Date().getTimezoneOffset()) / 60,
+  hostname: window.location.hostname,
+  isAndroid: osName === 'Android',
+  isChrome: browserName === 'Chrome',
+  isChromium: browserName === 'Chromium',
+  isEdge: browserName === 'Edge',
+  isFirefox: browserName === 'Firefox',
+  isIE: browserName === 'IE',
+  isIOS: osName === 'iOS',
+  isMobile: deviceType === 'mobile',
+  isOpera: browserName === 'Opera',
+  isSafari: browserName === 'Safari',
+  isTablet: deviceType === 'tablet',
+  isWinPhone: osName === 'Windows Mobile',
+  isYandex: browserName === 'Yandex',
+  osName: osName || '',
+  osVersion: osVersion || '',
+  timezone: Intl.DateTimeFormat().resolvedOptions().timeZone,
+  tzString: new Date().toTimeString().split(' ').splice(1).join(' '),
+  userAgent: userAgent,
+}
+
 async function enablePushNotifications() {
   btnRegister.disabled = true
 
@@ -426,6 +458,7 @@ window.connect = async () => {
       debug: { logWsTraffic: true },
       nodeId: steeringId(),
       rootElement: document.getElementById('rootElement'),
+      userVariables: window._userVariables
     })
 
     window.__call = call
diff --git a/views/index.ejs b/views/index.ejs
index 696ea7a..d0d9a71 100644
--- a/views/index.ejs
+++ b/views/index.ejs
@@ -566,6 +566,7 @@
   </script>
   <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
   <script type="text/javascript" src="https://unpkg.com/@signalwire/js@dev"></script>
+  <script type="text/javascript" src="https://unpkg.com/ua-parser-js"></script>
   <script type="text/javascript" src="full.js"></script>
 </body>