Right-click on page in chrome and select Inspect. The browser displays an inspection panel.
Click on the three-dots settings icon in the inspection panel.
Select More tools and then Network conditions.
In the User agent section, disable Use browser default.
In the drop-down list, select Custom....
In the text box below Custom..., enter the UA string the browser should use.
Refresh the browser page. The page is fetched from the IP Office using the custom UA.
