> For a complete index of all SignalWire documentation pages, fetch https://signalwire.com/docs/llms.txt

# CallNetworkIssue

> Describes a single network issue detected during a call, with severity and metric values.

A single network issue detected by the WebRTC stats monitor on an active call. Issues are emitted on [`call.networkIssues$`](/docs/browser-sdk/v4/reference/webrtc-call/network-issues\$); use them to drive UI warnings or quality-degradation flows.

## **Properties**

Severity of the issue. `warning` indicates degradation; `critical` indicates the call may not be usable.

Threshold value (in the metric's unit) that was crossed to trigger this issue.

Wall-clock timestamp (ms since epoch) when the issue was detected.

Kind of network issue detected.

Observed value of the metric that triggered the issue.