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ITU-T L.20 Creation of a fire security code for telecommunication facilities
ITU-T L.23 Fire extinction - Classification and location of fire extinguishing installations and equipment on premises
ITU-T L.21 Fire detection and alarm systems, detector and sounder devices
ITU-T D.186 General tariff and accounting principles for international two-way multipoint telecommunication service via satellite
ITU-T V.25bis Synchronous and asynchronous automatic dialling procedures on switched networks
ITU-T X.123 Mapping between escape codes and TOA/NPI for E.164/X.121 numbering plan interworking during the transition period
ITU-T E.165.1 Use of escape code '0' within the E.164 numbering plan during the transition period to implementation of NPI mechanism
ITU-T X.115 AMD 1 Definition of address translation capability in public data networks; Amendment 1: Refinements