EN 300 122-1 : 1.2.4
Current
The latest, up-to-date edition.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - GENERIC KEYPAD PROTOCOL FOR THE SUPPORT OF SUPPLEMENTARY SERVICES - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO.ONE (DSS1) PROTOCOL - PART 1: PROTOCOL SPECIFICATION
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
1 Scope
2 Normative references
3 Definitions
4 Abbreviations
5 Co-existence with other supplementary service
protocols
5.1 Support of the various generic protocols
5.2 Coexistence of generic protocols
5.3 Arrangements by which coexistence of protocols
may be supported by a network
6 Procedures for the keypad protocol
7 Coding requirements
Annex A (informative): Example use of the keypad
protocol
Annex B (informative): Functional reference model for
the operation of supplementary services
Annex C (informative): Changes with respect to the
previous ETS 300 122-1
History
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.