Initiates a new outbound WhatsApp voice call to a contact. Creates a WaCall record and a linked WhatsAppMsg of type call in the conversation thread. The callId returned should be used for all subsequent call operations.
Your application's unique ID.
Your application's secret key.
The _id of the WhatsApp Business Account (WABA) to call from.
"60c72b2f9b1d8e001f8a1b2c"
Outbound call payload
Call initiated successfully. Use the returned callId for accept/end operations.