Oppo
Clear the Entire Call Log auf Oppo
On Oppo phones running Coloros, every call and message you send or receive gets logged in the same Call history view. Over time this list grows fast, especially if you make frequent calls or use messaging apps that log through the same history.
The Call history function itself controls this list. Clearing it removes every entry at once, not just calls but also the message log tied to the same history screen. Your saved contacts stay untouched, since contacts and call history are stored separately.
To clear the full list, go to Tap on Phone ➔ Open the Menu ➔ Tap on Call history ➔ Open the Menu ➔ Tap on Clear call history ➔ Tap on OK.
If you only want to remove one specific call or number instead of the whole log, deleting individual entries is the better option, since a full clear cannot be undone. Once confirmed, the entire history is gone immediately and cannot be restored.