ITU-T Recommendation E.106 Series E: Overall network operation, telephone service, service operation and human factors. International operation – General provisions concerning Administrations. International Emergency Preference Scheme (IEPS) for disast...

CCITT Recommendation E.105 Telephone network and ISDN. Operation, numbering, routing and mobile service. International telephone service ITU-T Recommendation E.104 Telephone network and ISDN. Operation, numbering, routing and mobile service. International telephone directory assistance service and public access ITU-T Recommendation E.100 Telephone network and ISDN. Operation, numbering, routing and mobile service. Definitions of terms used in international telephone operation Рекомендация МСЭ-Т Е.106 Серия Е: Эксплуатация глобальных сетей, телефонная связь, операции по обслуживанию и факторы, связанные с человеком. Международные операции – Общие положения, касающиеся администраций. Международная схема аварийных приоритетов ... ITU-T Recommendation E.107 Series E: Overall network operation, telephone service, service operation and human factors. International operation – General provisions concerning Administrations. Emergency Telecommunications Service (ETS) and interconnect... ITU-T Recommendation E.109 Telephone network and ISDN. Operation, numbering, routing and mobile service. International billed number screening procedures for collect and third-party calling