The present document contains the full specification of the speech codecs for use in the Terrestrial Trunked Radio (TETRA) system. The TETRA codec specified in clauses 4 to 8 is mandatory for all TETRA mobiles and networks. The AMR codec specified in clauses 9 to 12 is optional. If the AMR codec is implemented@ the equipment shall conform to the whole of clause 9 to 12.
ETSI EN 300 395-2:2004 history
2005ETSI EN 300 395-2:2005 Terrestrial Trunked Radio (TETRA); Speech codec for full-rate traffic channel; Part 2: TETRA codec (V1.3.1; Includes Diskette)
2004ETSI EN 300 395-2:2004 Terrestrial Trunked Radio (TETRA); Speech codec for full-rate traffic channel; Part 2: TETRA codec (v1.3.0)