Number Portability can be completed only if you have the migration code provided by the telephone operator for the dedicated fax line, and if there is only one number on a traditional analog or single ISDN line. In both cases, there cannot be an ADSL line present on the fax line, either contractually or physically.
It is also necessary that the request be made by the subscriber of the line, and all telephone operator invoices for the line to be transferred must be paid up.
Providing exact information is the best guarantee for fast, trouble-free number portability.
When the number is transferred from previous telephone operator to Messagenet, the customer loses all additional services connected with the line.