DIN ETS 300514:2001-04 Digital cellular telecommunications system (Phase 2) - Line identification supplementary services - Stage 1 (Endorsement of the English version ETS 300514:1998-06 as German standard) / Note: Endorsement notice
2001DIN ETS 300514:2001-04 Digital cellular telecommunications system (Phase 2) - Line identification supplementary services - Stage 1 (Endorsement of the English version ETS 300514:1998-06 as German standard) / Note: Endorsement notice
2001DIN ETS 300514:2001 Digital cellular telecommunications system (Phase 2) - Line identification supplementary services - Stage 1 (Endorsement of the English version ETS 300514:1998-06 as German standard)