Real question: how long has the phone been disassembled on your desk?

If you are like me: around 2 years ;).

I made mine into a mobile a while back:

https://www.stavros.io/posts/irotary-saga/

The "GSM shield" (https://www.stavros.io/posts/irotary-saga/#:~:text=GSM%20shi...) link target was likely hijacked, you might want to replace it with a snapshot (https://web.archive.org/web/20150524if_/www.gsmlib.org/).

Thank you! I will.

Actually, just under two days. That phone is still in service, pulse dialing away on the rare occasions I gotta make a call through a landline.