I wonder if batteries are still being made for the GSM phones from just before the iPhone came out. They might work, and are probably available on fleaBay.
Hopefully GSM isn't going the way of AMPS anytime soon.
Hopefully GSM isn't going the way of AMPS anytime soon.
In the EU, however, it looks like Vodafone intends to provide 2G through at least 2025.
https://www.multitech.com/documents/publications/marketing-g...