ETSI ETS 300 394-4-1 English Printed Edition English PDF Terrestrial Trunked Radio (TETRA); Conformance testing specification; Part 4: Protocol testing specification for Direct Mode Operation (DMO); Sub-part 1: Test Suite Structure and Test Purposes (TSS&TP) for Mobile Station to Mobile Station (MS-MS) Air Interface (AI)

standard published 06/01/1999 by European Telecommunications Standards Institute