Voice
Attach a number to a SIP trunk
Routes the number's calls to the trunk: the external platform receives its inbound directly and can present it as outbound caller ID. While attached, Zernio-side voice features are off for this number (call forwarding, IVR, voicemail, recording, the softphone, and WhatsApp calling), so the number must have Calls and WhatsApp calling disabled before attaching. SMS and WhatsApp messaging are unaffected.
post/v1/phone-numbers/{id}/sip-trunk
Path parameters
idstring required
Phone number record ID (from GET /v1/phone-numbers).
Request body
Response
Number attached (idempotent for the same trunk).