4 ms·

IANAL either, but I think either of informing the party upfront or soft beeps in the background are acceptable.

• e40 9y ago
  I've been informed by the other side many times that the call was recorded, and never once heard soft beeps. I think the announcement must be enough. EDIT: IANAL
  • ptero 9y ago
    Yes. I believe either is sufficient, not that both are required