EXHIBIT 21.1 Subsidiaries of the Company - -------------------------------------------------------------------------------- Name State of d/b/a Name+ Incorporation - -------------------------------------------------------------------------------- * Telephone Business Meetings, Inc. Delaware Access Teleconferencing International * Conference Source International, Georgia None Inc. * Communication Development Connecticut None Corporation * Kendall Square Teleconferencing, Massachusetts The Conference Inc. Center f/k/a Teleconversant * American Conferencing Company, New Jersey a/k/a Americo Inc. * Call Points, Inc. Delaware None * Conference Pros International, Inc. Texas None * A Better Conference, Inc. California None * A Business Conference-Call, Inc. Minnesota None + All listed subsidiaries do business as Vialog Group Communications