Numbers, services and phone systems

Keep each relationship explicit: customer, product, voice entitlement, number and PBX.

An authorised number list

The module receives provider-authorised numbers and creates exact-DID inbound routes within its ownership safeguards. The provider, not the browser or the module, is responsible for the allocation and entitlement behind that list. A displayed search offer is neither an assignment nor a reservation.

BYOT service linking

The reference links one DOMAINTAINS product to one PBX and can aggregate distinct voice-service entitlements. Number lists are deduplicated and repeated service identities do not add channel entitlement twice. Foreign, inactive and conflicting relationships are rejected.

Per-number emergency authority

Emergency authority is resolved for each individual number against current customer, service and PBX assignments. Moving one number does not move its siblings. Old selectors and signed forms must cease to authorise the reassigned number.