ÖNORM EN 301656 V 1.2.1:2004-03

Действует

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call priority interruption and call priority interruption protection supplementary services [ISO/IEC 15992 (2003), modified]

Описание Изменения Ссылки Версии

На этот документ ссылаются

ÖNORM EN 301846 V 1.1.1:2001-11

Действует

Private Integrated Services Network (PISN) - Profile Standard for the use of PSS1 (QSIG) in Air Traffic Services networks