Telephony; E.164 Conversion; Configuration - Aastra OpenCom 100 Series Mounting And Commissioning User Manual

Telephony

Telephony

E.164 conversion

The OpenCom 100 communications system supports two different types of call
numbers when dialling external call numbers. Usually you enter the code for a route,
e. g. a "0" for the "external line" route. Then you enter an external call number. The
external call number can be either a local area code or a country area code.
The additionally configurable "E.164 conversion" feature enables you to enter the
entire international call number. Using the international call number makes sense in
the following applications:
• When using the "Fixed Mobile Conversion" (FMC) feature as the call number is
usually dialled from the local directory of the mobile telephone being used.
• When dialling via a computer programme connected with TAPI where call
numbers are often already in the international format due to synchronisation with
a mobile telephone.
• When importing or comparing directory data when directory entries are in the
international format.
• When networking communications systems with locations in different local areas
or in different countries.
The "E.164 conversion" analyses an international call number. The analysis divides the
call number into multiple parts: the international area code, the local area code, the
access call number and if necessary the extension. The call number is respectively
abbreviated, eliminating any unnecessary area codes. The abbreviated call number is
then used, e. g. to execute a call.

Configuration

You can configure the "E.164 conversion" feature for each bundle separately. This is
possible for point-to-point configured bundles ("system access"), for point-to-multi-
point configuration ("multi-terminal access") and for SIP trunks:
1. Call the OpenCom 100 communications system Configurator. On the intro-
ductory page, change the Level option to Expert.
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