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DIN ETS 300657 : 1998 Title: Broadband Integrated Services Digital Network (B-ISDN) - Signalling System No. 7 - B-ISDN User Part (B-ISUP) Capability Set 1 (CS1) - Supplementary services (ITU-T Q.2730:1995, modified); English version ETS 300657:1997
Year: 1998 Publisher: DIN Availability: Within 1-2 working days
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