Yes, "Other Transaction Accounts" include ATS accounts, NOW accounts, and telephone and preauthorized transfer accounts. They are now all reported as one group on FR2900.
The point is that it would be a nightmare to switch NOW accounts to demand status, simply because the APY is 0% and switch them back when interest payments resume. As far as the Call report is concerned, they are listed under transaction accounts (RC-E)- the same category as demand deposits, but listed as interest-bearing accounts on the balance sheet(RC). I'm not sure why they are listed separately on reserve reporting, probably something to do with volume tracking type product, versus any other issue.