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# CallErrorKind

> Semantic category of a call-lifecycle error.

```ts
type CallErrorKind = "media" | "signaling" | "timeout" | "rejected" | "network" | "internal"
```

Semantic category of a call-lifecycle error.

* `'media'`     – RTCPeerConnection / media device failure
* `'signaling'` – Verto / JSON-RPC protocol error
* `'timeout'`   – Call setup timed out waiting for a response
* `'rejected'`  – Remote side rejected the call
* `'network'`   – Transport lost during an active call
* `'internal'`  – Unexpected / unknown error