ETSI - PRETS 300 392-11-21
Radio Equipment and Systems (RES); Trans-European Trunked Radio (TETRA); Voice Plus Data (V+D); Part 11: Supplementary Services (SS) Stage 2; Part 11-21: Ambience Listening (AL)
inactive
| Organization: | ETSI |
| Publication Date: | 1 January 1996 |
| Status: | inactive |
| Page Count: | 22 |
scope:
This European Telecommunication Standard (ETS) defines the stage 2 specification of the Supplementary Service Ambience Listening (SS-AL) for the Trans-European Trunked Radio (TETRA) as provided by European operators. Stage 2 identifies the functional entities involved in the supplementary service and the information flows between them.
Charging principles and Man-Machine Interface (MMI) are outside the scope of this ETS.
The SS-AL enables a served user to place a TETRA Mobile Station (MS) or Line Station (LS) into a special type of voice call teleservice whereby the called MS (or LS) transmits without any action from, or indication to, the affected user. The teleservice may include a second listening party.
Document History
April 1, 2003
Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 11: Supplementary Services Stage 2; Sub-Part 21: Ambience listening (AL)
A description is not available for this item.
February 1, 2003
Terrestrial Trunked Radio (TETRA); Voice Plus Data (V+D); Part 11: Supplementary Services Stage 2; Sub-Part 21: Ambience listening (AL)
The present document defines the stage 2 specification of the Supplementary Service Ambience Listening (SS-AL) for the Terrestrial Trunked Radio (TETRA). Stage 2 identifies the functional entities...
PRETS 300 392-11-21
January 1, 1996
Radio Equipment and Systems (RES); Trans-European Trunked Radio (TETRA); Voice Plus Data (V+D); Part 11: Supplementary Services (SS) Stage 2; Part 11-21: Ambience Listening (AL)
This European Telecommunication Standard (ETS) defines the stage 2 specification of the Supplementary Service Ambience Listening (SS-AL) for the Trans-European Trunked Radio (TETRA) as provided by...