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ETSI ETR 138

Network Aspects (NA); Quality of service indicators for Open Network Provision (ONP) of voice telephony and Integrated Services Digital Network (ISDN)
standard by European Telecommunications Standards Institute, 12/01/1997
Publisher: ETSI

$15.00$29.50

Enhanced version of ETR138 to incorperate recent advances in the field of QoS study for ISDN and telephony

Product Details

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; S..

$21.00 $41.00

Corrigendum to - Integrated Services Digital Network (ISDN); Multiple Subscriber Number (MSN) supple..

$51.00 $102.00

Digital cellular telecommunications system (Phase 2+); Voice Group Call Service (VGCS); Stage 2 (3GP..

$29.00 $58.50

Digital Enhanced Cordless Telecommunications (DECT); Generic Access Profile (GAP); Profile Test Spec..

$26.00 $52.50