Services for routing toll free voice calls over a data network to allow the phone-to-phone and fax-to-fax 800, 888, 877 number to be reached from locations from which it would otherwise be unreachable or at least expensive Telecommunication services, namely, conveying telephone calls over a global computer network and global computer network telephony services, namely, routing and authentication for telephone calls sent over a global computer network using the Internet Protocol International telephone directory assistance services over a global computer network