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 EN 300 061-1
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; Digital Subsc
$9.00 $17.50
ETSI EN 300 061-2
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; Digital Subsc
$11.00 $21.51
ETSI EN 300 061-3
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; Digital Subsc
$9.00 $17.50
ETSI EN 300 061-4
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; Digital Subsc
$53.00 $106.00
ETSI EN 300 061-5
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; Digital Subsc
$9.00 $17.50
ETSI EN 300 061-6
Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service; Digital Subsc
$47.00 $93.01
ETSI EN 300 064-1
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital
$9.00 $17.50
ETSI EN 300 064-2
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital
$11.00 $21.51
ETSI EN 300 064-3
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital
$9.00 $17.50
ETSI EN 300 064-4
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital
$58.00 $115.50
ETSI EN 300 064-5
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital
$9.00 $17.50
ETSI EN 300 064-6
Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital
$50.00 $99.00
ETSI EN 300 065-1
ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Narrow-band direct-printing telegrap
$9.00 $17.50
ETSI EN 300 065-2
Electromagnetic compatibility and Radio spectrum Matters (ERM); Narrow-band direct-printing telegrap
$9.00 $17.50
ETSI EN 300 065-3
Electromagnetic compatibility and Radio spectrum Matters (ERM); Narrow-band direct-printing telegrap
$13.00 $25.50