1·Whether it does or not depends on how your local telephone company has tariffed its ISDN service.
这一切都取决于你的本地电话公司是否提供ISDN服务。
2·An Automatic Call Distributor, usually located in a central office and supplied to the customer by the telephone company with tariffed pricing structures.
自动呼叫分配器，通常位于市话局，由电话公司提供给客户并对定价体系进行征税。