setSwmlWebhook
Route inbound calls on this phone number to an SWML webhook URL. Your backend
returns an SWML document per call. The server auto-creates a swml_webhook
Fabric resource keyed off this URL — you do not need to call
fabric.swmlWebhooks.create or fabric.resources.assignPhoneRoute.
This is a typed wrapper over update that sets call_handler to
relay_script and populates call_relay_script_url for you.
Parameters
resourceId
ID of the phone number to bind.
url
Webhook URL that returns SWML. The server keys the auto-created Fabric resource off this value.
extra
Additional wire-level fields merged into the PUT body (e.g. name,
call_fallback_url).
Returns
Promise<any> — The updated phone-number resource.