Digital cellular telecommunications system (Phase 2). Signalling interworking for supplementary services (GSM 09.11, version 4.6.1)
Edition 1999-06-01

Digital Enhanced Cordless Telecommunications (DECT). Global System for Mobile communications (GSM). DECT/GSM InterWorking Profile (IWP). Access and mapping (protocol/procedure description for 3,1 KHz speech service)
Edition 1998-09-01

Terrestrial trunked radio (TETRA) - Voice plus data (V+D) - Part 3-1 : interworking at the inter-system interface (ISI) - Sub-part 1 : general design (V1.4.1)
Edition 2016-04-16

Radio Equipment and Systems (RES) - Digital Enhanced Cordless Telecommunications (DECT) and Integrated Services Digital Network (ISDN) interworking for end system configuration - Part 2: access profile
Edition 1999-12-01

Broadband Integrated Service Digital Network (B-ISDN) - Support of Frame Relay Bearer Service (FRBS) in B-ISDN and frame relay interworking betwenn B-ISDN and other networks
Edition 2001-06-01

Terrestrial trunked radio (TETRA) - Voice plus data (V+D) - Part 3: interworking at the Inter-system interface (ISI) - Sub-part 3 : additional network feature group call (ANF ISIGC) (V1.4.1)
Edition 2018-09-01

Digital cellular telecommunications system (phase 2). Signalling requirements on interworking between the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) and the Public Land Mobile Network (PLMN) (GSM 09.03, version 4.0.3)
Edition 1999-02-01