Dialing rules can be created for numbers and for number ranges. Perform the following steps to create a new dialing rule:

1. Select a preconfigured range of numbers in the "Number range" field or enter a number or number range for which the dialing rule is to be defined in the "Number" field.

Take note of the "Tips for Allocating Number Ranges" on this page.

2. Select a dialing rule from the "Connect via" field.

With this selection you define whether a number or number range should be dialed over the Internet or using the fixed line.

If you have configured more than one Internet telephone number, then you can use a certain number for dialing or select the "Internet automatically" option to specify that the connection should be established using the first Internet telephone number configured.

If you set up carrier prefixes on the "Carrier Prefixes" settings page, you can use dialing rules to determine which carrier is most economical for each of your fixed-line calls.

3. Click the "OK" button to implement your changes to the settings.

Tips for Allocating Number Ranges

The following ranges are preconfigured in the "Number range" field:

• mobile telephone network

Connections to numbers of the "017", "016" and "015" ranges will be established using the desired type of connection.

• Local area network

Connections to numbers that begin with "2", "3", "4", "5", "6", "7", "8" and "9" will be established using the desired type of connection.

• Long-distance calls

Connections to numbers of the "0" range will be established using the desired type of connection.

• International

Connections to numbers of the "00" range will be established using the desired type of connection.

• Premium numbers

Connections to numbers of the "0900", "0190" and "0180" ranges will be established using the desired type of connection.

• Directory assistance

Connections to numbers of the "118" range will be established using the desired type of connection.

Please take note of the following tips for allocating numbers or number ranges in the "Number" field.

• A number range may consist of one telephone number, a prefix, or of the first digits of a prefix.
• For instance, enter "030" if all calls to Berlin are to be conducted using the Internet.