The international telecommunication charge card service, and particularly its automated use throughout the world, will provide benefits to both users and Recognized Operating Agencies (ROAs). This is based on a recognition of: 1) the ROAs' need for security against fraudulent use, simplified billing procedures and a reduction in the requirement for operator assistance when telephone calls are made other than on a direct payment basis; 2) the current and anticipated charge card technology which could provide increased security and enhanced service to users; 3) the growing requirement for charge cards to pay for a variety of telecommunications services. As a result, ROAs (with appropriate authorization and coordination of their Administrations) are encouraged to prepare for, and introduce, the international telecommunication charge card service using the guidance of this Recommendation.