It is common for the company to collect phone numbers as subscriber data for its subscribers. In order to import phone numbers to the corresponding subscriber cards, the number must be written in the correct format and it must be a mobile number. Furthermore, it is not possible to import home numbers/landline numbers.

In order for Rule to smoothly read in mobile numbers during an import, the number must be written in the correct country code format, for example +4673867xxx for Sweden.