> 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.

# qualityScore$

> Observable of MOS quality score (1-5) computed from stats metrics.

```ts
get qualityScore$(): Observable<number>
```

Observable of MOS quality score (1-5) computed from stats metrics.

## **Examples**

```ts
call.qualityScore$.subscribe((qualityScore) => {
  console.log('qualityScore:', qualityScore);
});
```

> Observable of MOS quality score (1-5) computed from stats metrics.