ITU-T Recommendation E.164.1 Series E: Overall network operation, telephone service, service operation and human factors… Numbering plan of the international telephone…Criteria and procedures for the reservation, assignment and reclamation of E.164…

Рекомендация МСЭ-Т Е.164 Серия Е: Общая эксплуатация сети, телефонная служба, функционирование служб и человеческие факторы. Международная эксплуатация … Международный план нумерации электросвязи общего пользования ITU-T Recommendation E.164 Series E: Overall network operation, telephone service, service operation and human factors. International operation – Numbering plan of the international telephone…The international public telecommunication numbering plan ITU-T Recommendation E.164 Series E: Overall network operation, telephone service… Numbering plan… Supplement 4 Operational and administrative issues associated with the implementation of ENUM for non-geographic country codes ITU-T Recommendation E.164.2 Series E: Overall network operation, telephone service, service operation and human factors. International operation – Numbering plan of the international telephone service. E.164 numbering resources for trials ITU-T Recommendation E.164.3 Series E: Overall network operation, telephone service, service operation and human factors… Numbering plan of the international …Principles, criteria and procedures for the assignment and reclamation of E.164 country codes… ITU-T Recommendation E.165 Telephone network and ISDN. Operation, numbering, routing and mobile service. Timetable for coordinated implementation of the full capability of the numbering plan for the ISDN ERA (recommendation E.164)