> 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. # bandwidthConstrained$ > Observable indicating whether the call is bandwidth-constrained. ```ts get bandwidthConstrained$(): Observable ``` Observable indicating whether the call is bandwidth-constrained. ## **Examples** ```ts call.bandwidthConstrained$.subscribe((bandwidthConstrained) => { console.log('bandwidthConstrained:', bandwidthConstrained); }); ``` > Observable indicating whether the call is bandwidth-constrained.