Notification Sounds

Jonot plays a short sound on the customer’s phone and the venue display when staff call a ticket. The desk can also play a sound when a customer joins while staff are away. Sounds are on by default. In admin, you can turn them off for an organisation or location. The Pro plan also lets you upload custom MP3 files.

Sound events

• customer.called (customer screen) — the customer’s ticket status changes to CALLED.
• display.called (display screen) — any ticket in the queue is called (a new row appears in Recently Called).
• display.recalled (display screen) — a desk presses Call again to re-announce the current call (Pro, see below).
• desk.joined (desk screen) — a customer joins the queue while the desk is unattended (see Desk new-arrival sound).

Autoplay gate

Browsers require a person to interact with the page before audio can play. On the customer screen a small banner appears at the top of the ticket page — tapping Enable sound grants permission. On the display screen a full-screen overlay appears when the page first loads; tapping the Enable sound button dismisses it and enables sound for the session.

After a user turns on audio, the device saves the setting in localStorage. The prompt does not appear again on later visits.

Tip

On Android and desktop browsers, customers can install the customer screen as a progressive web app (PWA). Tap Install app on the ticket page or use the browser’s “Add to Home Screen” option. The operating system is then less likely to close it in the background, which makes the call sound more reliable.

Admin controls

Org-level toggle (any plan)

Open Settings → Notification Sounds in the admin panel. The toggle enables or disables all sound events across every location in your org. It works on any plan.

Location overrides (any plan)

Org-managers see the organisation default and a separate settings panel for each location. Location-managers see only the panel for their assigned location, not the organisation default.

Toggle behaviour:

• The toggle shows the setting for that organisation or location. When the organisation default is off, a message replaces the location toggle. A location cannot turn sounds on when the organisation setting is off.
• A location override can turn sounds off even when the org default is on.

Custom sounds (Pro)

Caution

Custom sound uploads require the Pro plan. Turning sounds on and off — the org default and location overrides — works on any plan.

On the Pro plan, you can upload an MP3 file for each sound event. The file replaces the default sound for all devices covered by that organisation or location setting.

File constraints:

Constraint	Limit
Format	MP3 only
Max size	200 KB
Max duration	3 seconds

Jonot rejects files that exceed these limits. It checks the file contents, not only the MIME type. Renaming a file that is not an MP3 does not pass the check.

Storage quota

Each organisation can store up to 20 MB of uploaded sound files. An upload that exceeds this limit returns a storage_quota_exceeded error. Deleting a custom sound from a location or organisation frees its storage space.

Orphan cleanup

Jonot treats a file as unused if you upload it but do not save it in any organisation or location settings. This can happen if you close the page before saving. A nightly process deletes unused files after 7 days. During those 7 days, you can reopen the settings page and use the same preview URL.

Hard-of-hearing call cue

The display shows a full-screen flash whenever staff call or re-announce a ticket. This high-contrast signal appears with the sound and remains visible across the room when the display is muted.

The flash is always on — it does not require Pro or any toggle. It fires on:

• Every new call (display.called)
• Every Call again re-announce from the desk (display.recalled)

Accessibility: the flash is one pulse of about 0.6 seconds, not a strobe. If the device uses prefers-reduced-motion: reduce, the display shows a still high-contrast signal instead of an animation.

Custom flash colour (Pro)

On the Pro plan, the flash colour can be customised in Admin → Branding → Call flash colour. The change flows live to all paired displays via the branding channel. On plans other than Pro, the flash uses the accent colour from your branding.

display.recalled chime (Pro)

When staff press Call again, the display plays a separate two-part sound (display.recalled). It differs from the first-call sound (display.called), so staff can tell them apart. On the Pro plan, you can replace this sound with a custom MP3 in the same Notification Sounds settings panel.

Desk new-arrival sound

The staff desk can play a short sound when a customer joins the queue. Staff who have stepped away can hear new arrivals without watching the screen. It is controlled from the desk itself, under Settings → New-arrival sound:

• Play a sound when a customer joins — a single per-device checkbox, on by default.

The sound avoids unnecessary alerts:

• Silent while you’re working. It plays only when the desk has been idle. Joins are silent if you called, completed, or used the desk in the last 90 seconds.
• Limited during several joins. If several customers join together, the desk plays the sound at most once every few seconds.

Like the other sounds, the desk ding respects the org/location toggle in admin — if sounds are turned off for the location, the desk stays silent regardless of the per-device checkbox. The on/off control is available on every plan; replacing the default ding with a custom MP3 requires Pro.

Per-device mute

The customer and display screens each have a mute button. The device stores this setting in localStorage, so it does not affect other customers or displays. A muted device still shows the audio prompt if audio has not been enabled. After audio is enabled, the device remains silent while muted.

Related guides

• Marketing Content — display banners and text on the same customer and display screens.
• Push Notifications — browser push / OS notifications for customers when their number is called.