1ETSI EN 300 392-1 Terrestrial Trunked Radio(TETRA); Voice Plus Data(V+D); Part 1 : General Network Design-V1.2.1[S]. 2003.
2ETSI EN 300 392-2 Terrestrial Tl"unked Radio(TETRA); Voice Plus Data(V+D); Part 2: Air Interface(AI)[S]. 2001.
3ETSI EN 300 392-3-3 V1.3.1 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 CalI(ANF-ISIGC)[S].2011].