PRINCIPLES OF ARS MECHANISMS CALL SERVER : PRIVATE NETWORKS
Ed. 0416/18 Réf. 3EH 21000 BSAA
REROUTING ON OPERATOR BUSY
Definition
When a call cannot get through because the operator is busy, this mechanism automatically reroutes
it via another operator.
The rerouting mechanism is totally transparent to the user (no specific tone or display).
The mechanism is only offered for calls routed by ARS over ARS trunk groups (ISDN trunk groups only).
Automatic rerouting when the operator is busy is activated by the triggers defined by the "BsyPrvCaus"
flag and refers to the ARS table settings.
Configuration example
In this example, at any moment of the week calls starting by 089 are processed by the operator Mo-
bilcom, and by Teldafax if Mobilcom is busy. If Teldafax is also busy, these calls will be processed by
the preselected operator Telekom.
All other external calls (calls not starting with 089) are processed by Telekom.
"Dialing plan" configuration:
- "Secondary trunk groups seizure" function: Start, End = 0; Base = ARS; NMT = Absorbed. All calls
starting with 0 are ARS calls and the subsequent figures are analyzed by the ARS tables.
OPERATOR 1
(MOBILCOM for
example)
OPERATOR 2
(TELDAFAX for
example)
PRESELECTED
OPERATOR
(TELEKOM for exemple)
Trunk group 1
Trunk g r o up 2
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