Could ENUM be used to provide telephone number portability?
ENUM is not intended for this use, although it may have a place in countries that do not have a centralised database administration. There are implications and limitations in using ENUM in this way ENUM is a shared resource discovery service, not an industry provisioning service. Countries that deploy number portability have telephone service providers that are generally required to comply with regulatory/industry processes and procedures regardless of the underlying technology they employ for telephony service delivery. Its important to highlight that ENUM will need to be deployed consistent with applicable national requirements. It does not create an alternate numbering system with its own set of rules and policies.
