(Osaka) -(2002) You can propose at the fee whose Integratted Services Digital Network of the NTT is cheap. Also the register vicarious execution of Integratted Services Digital Network is free. They are 8800 Yen with the TA and DSU included. Being large amount telephone joining right unnecessary, it can pull the telephone line. Furthermore if already you have the TA, it is free. (telephone, right, LINE, ISDN, light, FAQ, Digital, Shop, TA, DSU, NTT, Flets, Service, Cheep, Discount)