v2
latestOpenAPI 3.1.02026-08-075421692.0 MBSMS
Enable SMS on a number
Turns on SMS for one of your numbers. The number's real carrier capability is checked first: some number types can't do SMS at all (smsCapable: false), and a number still provisioning at the carrier returns notReady: true (try again once provisioning finishes).
US numbers additionally need a carrier registration before messages deliver; the response tells you which path applies:
- alreadyRegistered: true: a prior registration still covers this number; SMS was simply reactivated.
- reusable set: you have an approved registration this number can join in one click via POST /v1/phone-numbers/{id}/sms/reuse-registration (no new brand/campaign, no extra carrier fee).
- needsRegistration: true and no reusable: start one via POST /v1/sms/registrations.
Idempotent: re-running re-attempts any carrier-side setup that failed.
post/v1/phone-numbers/{id}/sms
Path parameters
idstring required
Phone number record ID (from GET /v1/phone-numbers).
Response
Result. Check enabled: a 200 with enabled: false means the number can't do SMS (smsCapable: false) or isn't ready yet (notReady: true).