Dear customers,

Currently, the printing and shipping of print documents (standards and publications) are delayed.
If available, you may also order the document in digital download format; it is usually available within a few minutes (or within one business day at the latest if manual review is required).
To convert an existing order, please email international@dinmedia.de, including your order number or customer number.
We apologize for the inconvenience and thank you for your patience.

Your DIN Media

Standard [CURRENT] Article is not orderable

ETS 300661-1:1997-07

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Direct Dialling In (DDI) supplementary service - Part 1: Protocol specification (ITU-T Recommendation Q.2951, clause 1:1995, modified) (Endorsement of the English version ETS 300661-1:1997 as German standard)

Publication date
1997-07
Original language
English
Pages
7
Publication date
1997-07
Original language
English
Pages
7

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