InboundCallInputWebhookRequest
The call payload of the call.incoming event Resia sends to a Call Agent's
inbound_input_webhook_url when an inbound call arrives: the caller and dialed numbers.
Deliberately minimal: the customer knows their own number-to-agent mapping, so the two phone numbers are all the endpoint needs to look up the caller and return the call's inputs.
- fromType: string
_phone _number required - toType: string
_phone _number required

