Back

EVS-EN 300 403-1 V1.3.2:2005

Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]

General information
Valid from 09.02.2005
Base Documents
EN 300 403-1 V1.3.2
Directives or regulations
None
We do not sell ETSI standards on our website. You can download them for no extra charge from here.
Standard history
Status
Date
Type
Name
Standardi käsitlusala on leitav standardi tekstist.
*
*
*
Standard monitoring