v2
latestOpenAPI 3.1.02026-08-075421692.0 MBWhatsApp Calling
Start caller-ID verification for a customer-brought number
Customer-brought (BYO) WhatsApp numbers cannot present themselves as caller ID on tel: call forwards until verified (carrier anti-spoofing); until then forwarded calls show a Zernio number (callerIdMode: platform on the calling config). This sends a one-time code to the number by SMS or voice call. Re-POST to resend. Zernio-purchased numbers never need this and get a 400.
post/v1/phone-numbers/{id}/whatsapp/caller-id-verification
Path parameters
idstring required
Phone number record ID (from GET /v1/phone-numbers).
Request body
Response
Code sent (or the number was already verified)