Operating modes and functions
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ELSA LANCOM Wireless IL-II
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For advanced users: systematic use of the LCR
The first example has shown how connect charges can be reduced with
only a few entries. If you would like to put the least-cost router to optimal
use, detailed information is required with regard to the connect-charge
structure of the call-by-call providers. Next, decide how these rates and
rate zones can be best organized in the
ELSA LANCOM Wireless IL-11
LCR table. A variety of approaches are possible:
Obvious options for saving telephone charges can be entered directly:
'00' for international connections
Entering a single '0' will initially reroute all numbers starting with a zero.
However, as neighboring local exchanges may also start with a '0' and
yet be billed as local calls, their prefixes should be listed separately to
prevent these calls from being rerouted. This strategy should also be
applied to special prefixes such as '0800' etc.
Another strategy aims to achieve the highest possible level of control
over the routing activities. Start with the prefixes of the local area and
then define the next larger zones. The closer, and thus less expensive,
tariff zones are set with longer prefixes, the remaining more distant pre-
fixes with a smaller number of digits.
This setting can be expanded and refined as required. Here are a number of
further ideas for your consideration:
An area code is required to dial a number of local exchanges, but these
calls may be billed as local. If these areas have been routed using a gen-
eral entry, you could route the area codes that are billed as local calls via
the network prefix of your telephone company If the entry for the network
prefix is left empty, the entry will not be rerouted.
Perhaps a large number of your ISDN connections go to the same area
codes. If most of your remote stations are in Bristol, for example, you can
reach these numbers using a specific provider.
Study the various tariff zones. Check the Internet for the assignments of
area codes to zones. In Germany, for example, this is possible at:
'www.cheap-calls.com'.
Once you have found the area codes that you would like to reroute, you can
start assigning them to call-by-call providers. For this, you need the current
rates of as many telephone providers as possible. These can also be found
in the Internet. Addresses such as 'www.cheap-calls.com' (or
'www.focus.de' in Germany), for example, contain complete, up-to-date list-
100324 Wireless IL-11.book Seite 76 Montag, 30. Oktober 2000 4:13 16
