Network Aspects (NA); Network aspects of ISDN to ISDN and ISDN internal interworking
STANDARD published on 8.7.1992
Designation standards: ETSI ETR 031-ed.1
Publication date standards: 8.7.1992
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: European technical standard
Category: Technical standards ETSI