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 TS 123 119
Universal Mobile Telecommunications System (UMTS); Gateway Location Register (GLR); Stage2 (3GPP TS
$39.00 $78.50
ETSI TS 123 121
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications Sys
$26.00 $52.50
ETSI TS 123 122
Universal Mobile Telecommunications System (UMTS); Non-Access-Stratum functions related to Mobile St
$17.00 $33.00
ETSI TS 123 127
Universal Mobile Telecommunications System (UMTS); Virtual Home Environment / Open Service Architect
$34.00 $68.00
ETSI TS 123 135
Universal Mobile Telecommunications System (UMTS); Multicall supplementary service; Stage 2 (3GPP TS
$17.00 $33.00
ETSI TS 123 140
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications Sys
$32.00 $63.00
ETSI TS 123 146
Universal Mobile Telecommunications System (UMTS); Technical realisation of facsimile Group 3 servic
$34.00 $68.00
ETSI TS 123 153
Universal Mobile Telecommunications System (UMTS); Out of Band Transcoder Control; Stage 2 (3GPP TS
$23.00 $45.00
ETSI TS 123 171
Universal Mobile Telecommunications System (UMTS); Functional stage 2 description of location servic
$26.00 $52.50
ETSI TS 123 205
Universal Mobile Telecommunications System (UMTS); Bearer-independent circuit-switched core network;
$45.00 $89.50
ETSI TS 123 221
Universal Mobile Telecommunications System (UMTS); Architectural requirements (3GPP TS 23.221 versio
$15.00 $29.50
ETSI TS 123 227
Universal Mobile Telecommunications System (UMTS); Application and user interaction in the UE; Princ
$9.00 $17.50
ETSI TS 123 271
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications Sys
$32.00 $63.00
ETSI TS 124 002
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications Sys
$9.00 $17.50
ETSI TS 124 007
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications Sys
$39.00 $78.50