DIN ETS 300186 : 1994
DIN ETS 300186 : 19941472476
DIN ETS 300186 : 1994
Title: Integrated Services Digital Network (ISDN); Three-Party (3PTY) supplementary service; service description; English version ETS 300186:1993
Year: 1994
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN); Three-Party (3PTY) supplementary service; service description; English version ETS 300186:1993
Year: 1994
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
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