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Norm
ÖNORM EN 300392-11-4 V 1.1.1
Ausgabedatum: 2003 09 01
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2 - Sub-part 4: Call Forwarding (CF)
The present document specifies the Call Forwarding supplementary services:
Call Forwarding Unconditional (SS-CFU);
Call Forwarding Busy (SS-CFB);
Call Forwarding No...
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Herausgeber:
Austrian Standards International
Format:
Digital | 72 Seiten
Sprache:
Englisch
Standards mitgestalten:
ICS
The present document specifies the Call Forwarding supplementary services:
Call Forwarding Unconditional (SS-CFU);
Call Forwarding Busy (SS-CFB);
Call Forwarding No Reply (SS-CFNRy); and
Call Forwarding Not Reachable (SS-CFNRc);
which are applicable to various basic services supported by TETRA SwMIs. Basic services are specified in
EN 300 392-2 [3].
SS-CFU, SS-CFB, SS-CFNRy and SS-CFNRc are supplementary services which apply during call establishment
providing a forwarding of an incoming call to an other destination than the original destination defined by the called
(served) user under different conditions (busy, no reply or not reachable respectively) or under no condition
(unconditional).
The present document is applicable to circuit mode TETRA tele-services and bearer services only for all supplementary
services specified in the present document. The present document applies also for SS-CFU to SDS (Short Data
Services).
The present document also specifies the SS-CF invocation counter, which limits the number of call forwarding that a
call request may encounter during call establishment, e.g. to protect the network against indefinite looping.
Man machine interfaces and charging principles are outside the scope of the present document.