Integrated Services Digital Network (ISDN). Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 ISDN User Part (ISUP) (ITU-T Recommendation Q.850 (1993), modified)
STANDARD published on 1.8.2000
Designation standards: STN ETS 300485
Classification mark: 870485
Catalog number: 80126
Publication date standards: 1.8.2000
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Slovak technical standard
Category: Technical standards STN
Táto norma obsahuje informáciu o vykonaných úpravách v texte ITU-T, číslo Q.850 z roku 93.