Charge ceil(len/64)*400 IRT per recipient across OTP, customer, and partner SMS; seed new businesses with 500k IRT; default partner sends to the advertising line.
Co-authored-by: Cursor <cursoragent@cursor.com>
Business SMS uses optional settings.sms.senderNumber (else advertising shortcode) with SendQuick for one recipient and SendBulk for quantity.
Co-authored-by: Cursor <cursoragent@cursor.com>