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Norm

ÖNORM EN 300392-12-21 V 1.2.1

Ausgabedatum: 2005 03 01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 12: Supplementary services stage 3 - Sub-part 21: Ambience Listening (AL)

The present document defines the stage 3 specification of the Supplementary Service Ambience Listening (SS-AL) for the Terrestrial Trunked Radio (TETRA). Stage 3 defines...

ZURÜCKGEZOGEN : 2007 10 01

Herausgeber:

Austrian Standards International

Format:

Digital | 36 Seiten

Sprache:

Englisch

Aktuell Gültig:

ÖVE/ÖNORM EN 300392-12-21 V1.5.1:2012 06 01

Standards mitgestalten:

Komitee 001: Informationstechnologie

ICS

33.070.10

Fachgebiete

IT, communication & electronic, Mobile services, Terrestrial Trunked Radio (TETRA) Electric & lighting engineering, Mobile services, Terrestrial Trunked Radio (TETRA)

The present document defines the stage 3 specification of the Supplementary Service Ambience Listening (SS-AL) for the Terrestrial Trunked Radio (TETRA). Stage 3 defines the signalling system protocols and switching functions needed to implement the service described in stage 1 and stage 2. Charging principles and Man-Machine Interface (MMI) are outside the scope of the present document. The SS-AL enables the served user to place a TETRA Mobile Station (MS) into a special type of voice call whereby the called MS transmits without any action from, or indication to, the affected user. The SS-AL call can include a second listening party. The affected user can ask other user to set an SS-AL call on him.

ÖVE/ÖNORM EN 300392-12-21 V1.5.1

2012 06 01