Hi sabfa,
If you don't want to be interrupted when you are recording video on your iPad, try enabling the Do Not Disturb feature.
Use Do Not Disturb on your iPhone, iPad, or iPod touch
When Do Not Disturb is on, a crescent moon
, or half-moon, icon will appear in the status bar. There are two ways to turn Do Not Disturb on or off:
- Tap Settings > Do Not Disturb. Choose Manual to turn on Do Not Disturb now or set a schedule.
- Swipe up from the bottom of the screen to open Control Center. Tap the crescent moon.

You can also choose when you want to be disturbed:
- Allow Calls From: Allow calls from everyone, no one, your favorites, or specific contact groups stored on your device or your iCloud account.
- Repeated Calls: If someone calls you twice within three minutes, the call won't be silenced.
- Silence: Choose to silence calls and notifications always or only when the device is locked.
Take care,