This was for BMW Assist in the USA. 4 years of free service was included with the cars when new, then they tried to get you to subscribe for some massively overpriced yearly subscription - and by then, everyone had a cellphone, rendering the concept mostly obsolete anyways - certainly not worth paying a handsome sum for.
I believe the telephone connection was to Verizon's old analog network, and therefore this hardware is now obsolete anyways. Can anyone stateside confirm this?
I replaced my switches with a BMW oddment tray, that was fitted in cars without BMW Assist. Doesn't add much storage but any little bit helps when there's so little in the first place. Takes 30 seconds to swap it out. Here's info..
https://www.zpost.com/forums/showthread.php?t=1196385