Support

Know the device works before the meeting starts.

This check runs entirely in your browser. Camera and microphone previews stay on the device and stop when you press Stop or leave this page.

Device check

Test this exact browser.

Run this on both sides of a session. A passing local test confirms permissions and input, but a two-device call is still required to test real two-way transport and playback.

Browser capabilities

Camera, microphone and speaker

Press Start, allow access, speak and confirm the green meter moves. Then play the test sound.

Not tested yet.

One-way audio

If one person cannot be heard, isolate the direction.

“Teacher cannot hear student” and “student cannot hear teacher” are different failures. Record the sender, receiver, device and browser for the failing direction.

Check the sender

  • Microphone permission is allowed in the browser.
  • Microphone access is allowed in iOS, Android, macOS or Windows settings.
  • The microphone button is not muted.
  • The microphone meter moves while speaking.
  • Disconnect Bluetooth headphones to rule out the wrong input.

Check the receiver

  • Volume is up and the correct speaker/headset is active.
  • Tap “Tap to hear lesson audio” if it appears.
  • On iPhone or iPad, try Safari if another browser fails.
  • Reload the room after changing permissions.
  • Check whether other websites can play sound.

Capture the case

  • Exact device model and OS version
  • Browser name and version
  • Who hosted and who joined
  • Which direction failed
  • Wi-Fi, cellular or company network
Common questions

Quick fixes.

Use the simplest recovery first, then change one variable at a time so the result is meaningful.

The microphone permission was denied. What now?

Open the browser's site settings for penandboard.com and change Microphone to Allow. Also check the operating-system privacy setting. Reload the page after changing either setting.

Firefox on iPad behaves differently from Firefox on a laptop. Why?

On iPhone and iPad, browsers use Apple's WebKit media implementation. The brand can be Firefox or Chrome, but media behavior can still resemble Safari more than desktop Firefox or Chrome.

Can an automated test prove every microphone combination works?

No. Automation can check layouts, permissions APIs, track state and simulated media on desktop. Real two-way audio still needs real-device testing because operating-system routing, Bluetooth, speakers and browser autoplay policies are physical-device behaviors.

Why does screen sharing not appear on a phone?

Mobile browsers do not expose desktop-style screen sharing consistently. Treat screen sharing as a desktop-host feature and keep phone/tablet participation focused on video, audio, files and drawing.