Expert Documentation

Chapter 7
ARS is implemented when the "Base" field is empty for the "Main trunk group seizure" and
"Secondary trunk group seizure" features in the main numbering plan and the numbering plans
for private and public incoming calls.
Main dialing plan
Start End Base Feature NMT Private
XXXX XXXX Main trunk group Keep or Drop Yes/No
XXXX XXXX Secondary trunk groups Keep or Drop Yes/No
Base: if this field is empty, the call is of type ARS; if not, it is a trunk group call.
NMT: this field defines whether the digits defined in the "Start" and "End" fields are absorbed
or conserved.
Priv: this field is a reference for the "Network" parameter in the ARS table:
- Yes: the outgoing number in the dialing plan is compared to the entries in the ARS table
with "Network" = Private.
- No: the outgoing number in the dialing plan is compared to the entries in the ARS table
with "Network Identifier" = Public, Urg. or Code auth.
After analysis and possible modification by the NMT, the outgoing digits in the dialing plan are
entered in the ARS table.
ARS TABLES
The installer determines the numbers or parts of numbers in front of the ARS handling. For
each destination defined by a prefix, it creates a "trunk group list". For each index in the list, it
is possible to assign one or several trunk groups and commands for modifying the dialing.
The ARS prefix replaces the external seizure prefix. On recognition of the prefix, the system
determines the associated "trunk group list". The ARS mechanism therefore uses the route by
activating the call on the corresponding trunk group. If the trunk group is busy, the next
programmed route is used.
Note 2:
In some instances, the equivalent French acrostic "ADL" may be found instead of "ARS".
USE OF THE VARIOUS TABLES
- The various parameters required for ARS operations are configured using OMC (Expert
View) only
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