DIN ETS 300063 : 1992
DIN ETS 300063 : 19921472397
DIN ETS 300063 : 1992
Title: Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; functional capabilities and information flows; english version ETS 300063:1991
Year: 1992
Publisher: DIN
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; functional capabilities and information flows; english version ETS 300063:1991
Year: 1992
Publisher: DIN
Availability: Within 1-2 working days
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