Number Portability
Short definition
Number Portability: The ability to retain a phone number when changing providers under local portability rules.
Meaning and how it works
Porting retains the number while changing service providers, but ancillary services and tariffs may change. Telephone numbering depends on national rules, carrier capabilities and the selected calling route. Customers benefit from consistent dialling formats and reliable number reachability.
Business applications
- Business scenario:
A company moves to another carrier while keeping its familiar customer contact number where porting is supported.
What to check before implementation
Before deployment, verify geographical availability, permitted number formats, tariffs, caller-ID restrictions and both inbound and outbound calling behaviour.