Phone number formatting

A phone number which is sent from the phone system to the PC has to be formatted accordingly before further processing. The server always uses Super-canonical phone numbers.

The phone number is formatted in this order:

  1. Formatting
    All digits apart from + * # 0 1 2 3 4 5 6 7 8 9 are removed.
  2. Application of the formatting rules
    The rules of the Formatting rules are applied. For further processing, the modified (if necessary) phone number is used.
  3. Removal of the external dialing code
    External dialing codes are removed if present. If an external dialing code is found the phone number is treated as an external number.
  4. Recognition of internal numbers
    Provided that no dialing prefix was removed, it is decided by the length and rules for internal phone numbers whether it is an internal phone number.
  5. Removal of call-by-call dialing codes (only outgoing phone numbers)
    Existing CallbyCall prefixes are removed for outgoing phone calls. The used prefixes are saved in a Configuration file providers.xml.
  6. Standardization of the number
    The phone number is now converted in a super-canonical phone number.

Version 8