DIN ETS 300056 : 1992
DIN ETS 300056 : 19921472391
DIN ETS 300056 : 1992
Title: Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service; service description; english version ETS 300056:1991
Year: 1992
Publisher: DIN
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service; service description; english version ETS 300056:1991
Year: 1992
Publisher: DIN
Availability: Within 1-2 working days
Browse by Standards
