Amazon.com: US Robotics USR843453C External 56K V.92 Global Dial-up Business Modem : Electronics
StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Data Modem - Computer Fax - USB56KEMH2 - Modems - CDW.com
File:External 33.6k serial dial-up modem.jpg - Wikimedia Commons
What is Dialup Internet Service?
Dial-up Internet access | Ultimate Pop Culture Wiki | Fandom
Dial-up Access
How Many People in the US Are Still Using Dial-Up Internet?
Getting a dial-up modem working with VoIP – Peter Mount's Blog
Modem - Wikipedia
Gadgets I use
Amazon.com: StarTech.com USB 2.0 Fax Modem - 56K External Hardware Dial Up V.92 Modem/ Dongle/Adapter - Computer/Laptop Fax Modem - USB to Telephone Jack - USB Data Modem - Network Fax/CMR/POS (USB56KEMH2) :
New Hayes Accura 56k Sp 56k Dial-up Modem, A56k - Pc Hardware Cables & Adapters - AliExpress
Build a dial-up ISP server using a Raspberry Pi - Raspberry Pi