ETSI ETR 254
- Public Switched Telephone Network (PSTN); Signalling System R2; Signalling and circuit supervision via the European Communications Satellite (ECS) [CEPT Recommendation T/CS 42-09 E (1985)]
- standard by European Telecommunications Standards Institute, 03/01/1996
- Publisher: ETSI
$7.00$14.00
Related Products
ETSI ETS 300 019-1-7
Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications ..
$11.00 $21.51
ETSI I-ETS 300 070
European digital cellular telecommunications system (Phase 1); Technical realization of facsimile gr..
$19.00 $37.00
ETSI I-ETS 300 220
Radio Equipment and Systems (RES); Short Range Devices (SRDs); Technical characteristics and test me..
$23.00 $45.00
ETSI TS 102 013-2
Digital Enhanced Cordless Telecommunications (DECT); DECT Packet Radio Service (DPRS); Application S..
$39.00 $78.50