DS/EN 300392-12-20 V1.2.1
Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 20: Discreet Listening (DL)
active, Most Current
| Organization: | DS |
| Publication Date: | 23 May 2012 |
| Status: | active |
| ICS Code (Terrestrial Trunked Radio (TETRA)): | 33.070.10 |
scope:
This European Telecommunication Standard (EN) specifies the stage 3 description of the Supplementary Service Discreet Listening (SS-DL) for the Terrestrial Trunked Radio (TETRA). The DL supplementary service enables an authorized user to listen to one or more communications between TETRA subscribers Mobile Station (MS) without any indication to any user that the communication is being monitored. As options, the authorized user is able to intrude into the existing call and is able to forcefully clear the monitored call without call owner consent (in the case of a group call). Man-Machine Interface (MMI) and charging principles are outside the scope of the present document.
Document History
DS/EN 300392-12-20 V1.2.1
May 23, 2012
Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 20: Discreet Listening (DL)
This European Telecommunication Standard (EN) specifies the stage 3 description of the Supplementary Service Discreet Listening (SS-DL) for the Terrestrial Trunked Radio (TETRA). The DL supplementary...