> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# Calls


## API Docs

- Webhooks [Voice status callback](https://signalwire.com/docs/compatibility-api/rest/calls/webhooks/voice-status-callback.md)
- Calls [List all Calls](https://signalwire.com/docs/compatibility-api/rest/calls/list-all-calls.md)
- Calls [Create a Call](https://signalwire.com/docs/compatibility-api/rest/calls/create-a-call.md)
- Calls [Retrieve a Call](https://signalwire.com/docs/compatibility-api/rest/calls/retrieve-a-call.md)
- Calls [Update a Call](https://signalwire.com/docs/compatibility-api/rest/calls/update-a-call.md)
- Calls [Delete a Call](https://signalwire.com/docs/compatibility-api/rest/calls/delete-a-call.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://signalwire.com/docs/openapi.json)
- [OpenAPI YAML](https://signalwire.com/docs/openapi.yaml)