DIN ETS 300053 : 1992
DIN ETS 300053 : 19921472389
DIN ETS 300053 : 1992
Title: Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; service description; english version ETS 300053:1991
Year: 1992
Publisher: DIN
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN); Terminal Portability (TP) supplementary service; service description; english version ETS 300053:1991
Year: 1992
Publisher: DIN
Availability: Within 1-2 working days
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