> 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. # userVariables > Custom user variables attached to calls. ```ts get userVariables(): Record set userVariables(value): void ``` Custom user variables attached to calls. ## **Examples** ```ts console.log(client.preferences.userVariables); ``` > Custom user variables attached to calls.