With NTT’s optional Tele-Hodai service you pay a fixed monthly rate for all calls made to two specified numbers between 11 pm and 8 am, regardless of the number of calls or the duration of each call. Tele-Hodai is available for analog and ISDN lines. The former being called simply Tele-Hodai. The latter, INS Tele-Hodai. See Tele-Hodai charges.