If notifications don't arrive

If the page doesn't update when called

Page updates (and the sound/vibration alert) require the reception page to stay open.

What to try

1. Reload the page — Use the browser refresh or close and reopen via the QR code
2. Keep the page in the foreground — On mobile, switching apps or sleep can stop updates. Keep the reception page visible
3. Check your connection — Poor Wi‑Fi or mobile data can delay updates

If Web Push notifications don't arrive

1. Check the browser's notification permission — If you tapped "Enable notifications" but nothing arrived, notifications may be blocked. Check your browser/OS notification settings for this site
2. iPhone (Safari) users — Web Push only works when the page is added to your Home Screen: tap the Share icon → "Add to Home Screen," then open Queueue from the icon you added and enable notifications from there. It cannot be received from a regular Safari tab
3. Force-quitting the browser or restarting your phone can sometimes unregister the subscription — if notifications stop working, reopen the reception page and enable notifications again
4. Web Push is a best-effort feature on top of the page display; if it doesn't arrive, the reception page itself (kept open) always reflects your current status

Email and LINE notifications

Email and LINE notifications are planned for the future. For now, calls are announced via the reception page, sound/vibration (page open), and Web Push (page closed, where supported).