DIN ETS 300136 : 1992
DIN ETS 300136 : 19921472451
DIN ETS 300136 : 1992
Title: Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; service description; english version ETS 300136:1992
Year: 1992
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; service description; english version ETS 300136:1992
Year: 1992
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
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