DIN ETS 300712 : 1997
DIN ETS 300712 : 19971472763
DIN ETS 300712 : 1997
Title: Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Premium Rate (PRM) service; service description; English version ETS 300712:1997
Year: 1997
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
Title: Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Premium Rate (PRM) service; service description; English version ETS 300712:1997
Year: 1997
Publisher: DIN Media GmbH
Availability: Within 1-2 working days
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