Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 10: General design, PSS1 over E.1 (ETSI EN 300 392-3-10 V1.2.1 (2020-04))
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit mode bearer services - Inter-exchange signalling procedures and protocol— 145 стр.
Information technology. Telecommunications and information exchange between systems. Private Integrated Services Network. Generic functional protocol for the support of supplementary services. Inter-exchange signalling procedures and protocol— 120 стр.
