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  4. Standard "ČSN ETS 300139"
Standard ČSN ETS 300139 1.11.1994 preview

ČSN ETS 300139 (873521)

Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary serivce. Service description



STANDARD published on 1.11.1994


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1.40 USD

The information about the standard:

Designation standards: ČSN ETS 300139
Classification mark: 873521
Catalog number: 16850
Publication date standards: 1.11.1994
SKU: NS-170876
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Integrated Services Digital Network (ISDN)

Similar standards:

ČSN EN 300286-4-V1.2.4ČSN EN 300286-4-V1.2..

1.1.2000

ČSN ETS 300286-5-ed.1ČSN ETS 300286-5-ed...

1.4.1998

ČSN EN 300286-5-V1.2.4ČSN EN 300286-5-V1.2..

1.7.1999

ČSN ETS 300286-6-ed.1ČSN ETS 300286-6-ed...

1.8.1999

ČSN EN 300286-6-V1.2.4ČSN EN 300286-6-V1.2..

1.1.2000

ČSN ETS 300443-1-ed.1ČSN ETS 300443-1-ed...

1.8.1997

Latest update: 2026-09-17 (Number of items: 2 301 467)
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