Wiki¶

osmo-e1-recorder is a program to record traffic on E1 or T1 TDM interfaces to disk. This provides tcpdump-like functionality for TDM interfaces.

You can configure on a per-timeslot base if the raw bitstream should be recorded, or if a HDLC decoder should be used.

Requires a high-impedance tap and two E1/T1 ports per link you want to monitor (one for Rx, one for Tx).