1.
Intro
2.
Event setup
3.
Generic info
3.1.
FXO and FXS
3.2.
Cisco VG224
3.3.
RJ21 breakout
3.4.
Anchor Datacomm modem bank
3.5.
Dialup on modern Linux
3.6.
PCIe UART breakout
3.7.
DSLAM
Light
Rust
Coal
Navy
Ayu
Vintage telco
FXO and FXS
see https://osmocom.org/projects/retronetworking/wiki/FXO_and_FXS