Bring-your-own telephony, usually shortened to BYO: every production call Vocapable places for you leaves on your own Twilio subaccount, from numbers registered in your name, under your own registrations.
The carrier account, the negotiated per-minute carrier rates, the caller-ID reputation you spent years building and the carrier invoice all stay yours. Every production dial originates on your account, so the entity a carrier or a regulator sees as the caller is the entity that actually is the caller, and a year of answer rates compounds on numbers sitting in your own name.
The money follows the ownership. Your carrier bills you for the carriage directly, at the rates you negotiated, so a Vocapable invoice carries no carrier line: no minutes bought from us, no number rental, nothing to reconcile against a bill we never saw. Win a better rate from your carrier and the saving lands in your pocket that month. It is the structure rather than a promotion, so it does not expire when a term does.
Platform-owned numbers carry only paid test calls to numbers you have proved you control, and nothing else. Vocapable runs on Twilio; no partnership or endorsement is implied. What connecting your own account involves is on the telephony page.