The author finally succeeds in getting a 3G UMTS femtocell (Cisco/AT&T DP-153-AT) online, building on prior work by the Osmocom community. The process involves hardware hacking: opening the device case, dealing with tamper-detection jumpers, and soldering JTAG debugger connections to the Picocom CPU.
Background
Osmocom is an open-source project focused on mobile telecommunications infrastructure, enabling enthusiasts to run their own cellular networks using software-defined radio and repurposed hardware.
- Source
- Lobsters
- Published
- Aug 9, 2026 at 10:07 PM
- Score
- 5.0 / 10