# InitiateWhatsAppCallRequest
## Properties
**account_id** | **String** | |
**to** | **String** | Consumer wa_id (E.164 |
**forward_to** | Option<**String**> | Per-call destination override. Same accepted shape as the number's stored forwardTo (tel:+E164, sip:..., wss://...). | [optional]
**record_override** | Option<**bool**> | | [optional]
**biz_opaque_callback_data** | Option<**String**> | Accepted for forward compatibility. Not currently echoed back in webhook payloads (SIP-first flow does not pass through Meta's Graph API where Meta would echo this). | [optional]
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