SendCallResponse
201 body of POST /calls — the accepted call's id.
statusstringrequired
Always success.
call_iduuidrequired
The new call's id — poll it at GET /calls/{id}.
SendCallResponse
{
"status": "string",
"call_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}