Below are some photos of the restoration of my old Nokia 9000il. The Nokia 9000 series is generally believed to be the first "smart phone" on the market. I was able to find the PAR-1 adapter on eBay, however I had to rebuild the battery as the original would no longer hold a charge and I was unable to find a working one online. I also had to make a serial cable as none were available online. Thankfully, there are a lot of good pages of information online about these devices so I was able to do both. I will also include some links if anyone else is working with one of these.
Updates:
1) This device sits in a weird place in history. It uses a 2G GSM network for cellular, but doesn't support GPRS internet. It "dialed in" over the phone and established at PPP connection in order to get online. The phone and the PDA side of this device are basically separate devices. Being that it doesn't support GPRS data, my thoughts of running a mini cell network at home with a SDR seem like a dead end. I will likely still try it and see if I can make this thing do anything. For now, I was able to find a cool application called "bterm". Once I got it loaded onto the device, I was able to connect to my computer via a serial terminal and have a console over serial connection right on my Nokia 9000. From there I can use any command line tools I want. It's not super useful at the moment, but at least it's something. I will update more in the future should I try to set up my own 2G cell network here at home.
Nserver running on Windows 98SE VM
IRC via serial terminal!
https://www.mgroeber.de/nokia.html
https://web.archive.org/web/20020210063855/http://www.yaws.dk/communicator/faq/landline/home.html
https://www.manualslib.com/manual/830641/Nokia-9000i.html?page=332#manual
http://agustafsson.atspace.com/dlr1.html
https://github.com/mgroeber9110/nokia9000-apps/tree/main
https://bluewaysw.github.io/pcgeos/Devices/Nokia9000/ngrabbag.html