NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Standards
[CURRENT]
ETS 300362
ETS 300362
Private Telecommunication Network (PTN) - Inter-exchange signalling protocol - Call offer supplementary service
Title (German)
Privates Fernmeldenetz (PTN) - Protokoll der externen Leitungszeichengabe - Zusatzdienst Rufangebot