import android.content.ContentResolver;
import android.provider.CallLog;
import android.database.Cursor;
import android.net.Uri;

/* Get the content resolver to access call log */
ContentResolver resolver = context.getContentResolver();

/* Query the call log for missed calls, sorted by date descending */
Uri callLogUri = CallLog.Calls.CONTENT_URI;
String selection = CallLog.Calls.TYPE + " = ?";
String[] selectionArgs = new String[] { String.valueOf(CallLog.Calls.MISSED_TYPE) };
String sortOrder = CallLog.Calls.DATE + " DESC";

Cursor cursor = resolver.query(callLogUri, null, selection, selectionArgs, sortOrder);

/* Check if there are any missed calls */
if (cursor != null && cursor.moveToFirst()) {
    /* Get the ID of the most recent missed call */
    int idIndex = cursor.getColumnIndex(CallLog.Calls._ID);
    String callId = cursor.getString(idIndex);
    
    /* Delete the missed call entry */
    Uri deleteUri = Uri.withAppendedPath(CallLog.Calls.CONTENT_URI, callId);
    resolver.delete(deleteUri, null, null);
    
    cursor.close();
}