ETSI
Representing members from 54 countries, ETSI promotes worldwide standardization in telecommunications, broadcasting and information technology. The work of ETSI is closely aligned with the market needs of network operators, manufacturers, service providers, research institutions, and end users.
ETSI GTS GSM 03.63
Digital cellular telecommunications system (Phase 2+) (GSM); Packet Data on Signalling channels serv
$15.00 $29.50
ETSI GTS GSM 03.67
Digital cellular telecommunications system (Phase 2+) (GSM); enhanced Multi-Level Precedence and Pre
$15.00 $29.50
ETSI GTS GSM 03.68
Digital cellular telecommunications system (Phase 2+) (GSM); Voice Group Call Service (VGCS); Stage
$17.00 $33.00
ETSI GTS GSM 03.69
Digital cellular telecommunications system (Phase 2+) (GSM); Voice Broadcast Service (VBS); Stage 2
$17.00 $33.00
ETSI GTS GSM 03.70
Digital cellular telecommunications system; Routeing of calls to/from Public Data Networks (PDN) and
$11.00 $21.51
ETSI GTS GSM 03.81
Digital cellular telecommunications system (Phase 2+) (GSM); Line identification supplementary servi
$19.00 $37.00
ETSI GTS GSM 03.82
Digital cellular telecommunications system; Call Forwarding (CF) supplementary services; Stage 2 (GS
$32.00 $63.00
ETSI GTS GSM 03.83
Digital cellular telecommunications system; Call Waiting (CW) and Call Hold (HOLD) supplementary ser
$21.00 $41.00
ETSI GTS GSM 03.84
Digital cellular telecommunications system; Multi Party (MPTY) supplementary services; Stage 2 (GSM
$13.00 $25.50
ETSI GTS GSM 03.85
Digital cellular telecommunications system; Closed User Group (CUG) supplementary services; Stage 2
$13.00 $25.50
ETSI GTS GSM 03.88
Digital cellular telecommunications system; Call Barring (CB) supplementary services; Stage 2 (GSM 0
$17.00 $33.00
ETSI GTS GSM 03.90
Digital cellular telecommunications system; Unstructured Supplementary Service Data (USSD); Stage 2
$17.00 $33.00
ETSI GTS GSM 03.91
Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) supplement
$13.00 $25.50
ETSI GTS GSM 04.01
Digital cellular telecommunications system; Mobile Station - Base Station System (MS - BSS) interfac
$9.00 $17.50
ETSI GTS GSM 04.02
Digital cellular telecommunications system (Phase 2+) (GSM); GSM Public Land Mobile Network (PLMN) a
$9.00 $17.50