Amendment 1 - Integrated Services Digital Network (ISDN) - Attachment Requirements for Terminal Equipment to Connect to an ISDN Using ISDN Basic Access
Environmental Conditions and Environmental Tests for Telecommunications Equipment - Part 2-5: Specification of Environmental Tests - Ground Vehicle Installations
Digital Cellular Telecommunications System (Phase 2) - Interworking of GSM Network Management (NM) Procedures and Messages at the Base Station Controller (BSC)
Digital Cellular Telecommunications System (PHASE 2+) Interworking Between A Public Land Mobile Network (PLMN)and a Packet Switched Public Data Network/Integrated Services Digital Network (PSPDN/ISDN) for the Support of Packet Switched Data