Providing telecommunication services, namely, transmission of data and voice, and enhanced calling features, namely, conference calling, call forwarding, call rejection, call return, call waiting, caller ID, caller ID block, continuous redial,[ specialized ringing services, fax overflow services, line hunting, ]speed calling, long distance telephone service, inbound toll-free service, voice mail, and high-speed access to a global computer network, all of the foregoing excluding providing multiple-user access to a global computer information network for participants in the physical oil industry