Question about GPO Retro landline phone

We're not sure, but we think not; the supplier doesn't mention it on its sheet.
However, it does say: "COMPATIBILITY: Compatible with modern telephone banking switchboard, digital menus, etc, the vintage phone works with all analogue and digital home networks, such as BT and Virgin."
You can find the manufacturer's manual here: https://www.gporetro.com/products...