ETSI ETS 300 125
- Integrated Services Digital Network (ISDN); User-network interface data link layer specification; Application of CCITT Recommendations Q.920/I.440 and Q.921/I.441
- standard by European Telecommunications Standards Institute, 09/01/1991
- Publisher: ETSI
$43.00$85.50
Related Products
ETSI ETS 300 102-1
Integrated Services Digital Network (ISDN); User-network interface layer 3; Specifications for basic..
$47.00 $93.01
ETSI TS 101 945-1
Digital Enhanced Cordless Telecommunications (DECT); Data Services Profile (DSP); Isochronous data b..
$19.00 $37.00
ETSI EN 300 011-1
Integrated Services Digital Network (ISDN); Primary rate User Network Interface (UNI); Part 1: Layer..
$21.00 $41.00
ETSI EN 300 944
Digital cellular telecommunications system (Phase 2+) (GSM); Performance requirements on the mobile ..
$9.00 $17.50