ÖNORM EN 300392-11-12 V 1.1.2:2003-08

Действует

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2 - Sub-part 12: Call Hold (HOLD)

Описание Изменения Ссылки Версии

Ссылочные документы

BS ISO/IEC 11574:1994

Отменен

Information technology. Telecommunications and information exchange between systems. Private integrated services network. Circuit-mode 64 kbit/s bearer services. Service description, functional capabilities and information flows — 90 стр.