ITU-T Recommendation F.35 Operations and quality of service. Telegraph services. Provisions applying to the operation of an international public automatic message switching service for equipments utilizing the international telegraph. Alphabet No. 2

ITU-T Recommendation F.32 Operations and quality of service telegraph services. Telegram destination indicators ITU-T Recommendation F.31 Operations and quality of service. Telegraph services. Telegram retransmission system ITU-T Recommendation F.30 Operations and quality of service. Telegraph services. Use of various sequences of combinations for special purposes ITU-T Recommendation F.350 Operations and quality of service. Telematic service. Application of series t recommendations ITU-T Recommendation F.351 Operations and quality of service. Telematic service. General principles on the presentation of terminal identification to users of the telematic services ITU-T Recommendation F.353 Operations and quality of service telematic service. Provision of telematic and data transmission services on integrated services digital network (ISDN)