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Home/ How-to guides/ Phones/ Samsung/ Galaxy Z Fold8 Ultra/ Messaging & calls/ Reduce calls from unknown numbers

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Your deviceGalaxy Z Fold8 Ultra

Step 1 of 425%

01What to do now

Open Phone

Open the Phone app.

A carefully recreated One UI screen for Galaxy Z Fold8 Ultra, based on the manufacturer's current guidance. The highlighted control shows exactly what to use next. A software update may move it slightly.

Checked against Samsung UK Support

Official screenshots are used when the manufacturer publishes them. Any additional visual is carefully recreated from the current menu. Instructions are based on Samsung UK Support guidance for reduce calls from unknown numbers , checked 8 August 2026.

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