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PRINCIPLES OF ARS MECHANISMSCALL SERVER : PRIVATE NETWORKS
Ed. 04 11/18Réf. 3EH 21000 BSAA
As soon as a prefix is recognized and if the digits dialed do not belong to the range, there is
no overflow from one prefix to another
77299 dialed -> recognition of prefix 77: 299 not belonging to the range defined for this prefix, the
dialed number is not taken into account by the ARS mechanisms (even though this number corresponds
to entry 7[1000-7299]. To remedy this situation, configure the following ARS table:
Pay attention to overlaps in the "Substitute" field
There is an overlap between 03887766[00-99] and 0388776688. For incoming calls, there are 2
possible conversions of the public number 0388776688 into private numbers: 3688 and 3588. For
example, to convert the public number into the private number 3588, configure the ARS table as fol-
lows:
For incoming calls, the public number received, 03887766XX is converted into the private number
35[88-99] if XX does not belong to the range 00-87.
Network Prefix Ranges Substitute
Priv 7 1000-7299 7
Priv 77 300-320 1
Network Prefix Ranges Substitute
Priv 7 1000-6999 7
Priv 77 000-299 77
Priv 77 300-320 77
Network Prefix Ranges Substitute
Priv 36 00-99 03887766
Priv 3588 - 0388776688
Network Prefix Ranges Substitute
Priv 36 00-87 03887766
Priv 3588 88-88 03887766
Priv 3689 89-99 03887766
Network Prefix Ranges Substitute
Priv 36 00-87 03887766
Priv 35 03887766