Since version 1.29 it is now possible to configure several numbering rules for each PBX.

The rules will use the "Regular Expression" mechanism (also called RegEx) to perform "find and replace" operations on the phone numbers dialed.

NOTE:

If no rule is defined Rainbow default behavior is to analyze automatically a phone number using an integrated phone number library and the country defined in the user profile. For example, if the number is identified as a national phone number it will add the outbound prefix defined in the PBX configuration.

How does it work?

If numbering rules are defined then the dialed number will be first sent through these rules and if it matches a rule then the default behavior (phone number library and country analysis) will be skipped and the rule applied. If no rule matches then the default phone number analysis (see note above) will apply.

If the dialed phone number is matching a rule do not forget to add the outbound prefix in the replace field if the resulting number is a public phone number.

Let's give some examples:

1. Numbers with exactly 5 digits are internal numbers

• A number is a valid number according to the integrated phone number library then the outbound prefix is added and 0654321 is dialed (which may result in invalid number)
• the number is not a valid number according to the integrated phone number library then 654321 is dialed and will result in an invalid number

2. Numbers starting with 258 and with exactly 8 digits are internal numbers

3. Change a national number from same area to local number (e.g. area code = 321)

4. Forbid special rate numbers starting with 0800

5. Add an outbound prefix to special services numbers (e.g. road and traffic condition or speaking clock)

NOTE:

Once a number is matching a rule, the modified number is sent to the PBX and no other rule will apply to this number. Therefore the rule order is important.