OSMO-BTS-TRX(8)

✨ OSMO-BTS-TRX ✨

okay bestie, gather round, because this is the osmo-bts-trx manual page (section 8, for the sysadmin girlies) and it's literally the Base Transceiver Station for GSM 💖

---

🌸 NAME 🌸

osmo-bts-trx — Base Transceiver Station for GSM. that's it, that's the job. iconic behavior 🎀

---

🦋 SYNOPSIS 🦋

osmo-bts-trx [options]

yes bestie, it's just the binary and some options. no positional args, no drama. slay ✨

---

💜 DESCRIPTION 💜

so OsmoBTS is a whole software implementation of Layer2/3 of a BTS. like, actual real BTS vibes but it's software. no cap. 🧚

it implements these protocols/interfaces, and you're gonna want to know all of them for the exam:

• LAPDm (GSM 04.06)
• RTP
• A-bis/IP in IPA multiplex
• OML (GSM TS 12.21)
• RSL (GSM TS 08.58)

---

OsmoBTS is modular, which is the main character energy of it all. it supports multiple back-ends. a back-end is the thing that talks to a specific L1/PHY implementation of whatever BTS hardware you're on. 🫶

and because of that architecture? it should be relatively easy to add a new back-end to support so-far unsupported GSM PHY/L1 and the associated hardware. the way the structure just lets you do that... obsessed 😭

---

💅 OPTIONS 💅

• -h, --help — this text. the classic. you asked, it answers.
• -d, --debug MASK — enable debugging (e.g. -d DRSL:DOML:DLAPDM). yes, that mask, exactly like that. ✨
• -D, --daemonize — For the process into a background daemon. it goes off to be a background daemon and stops bothering your terminal.
• -c, --config-file — specify the filename of the config file. tell it which config file, bestie.
• -s, --disable-color — don't use colors in stderr log output. muted mode. lowkey sad but valid. 🌈
• -T, --timestamp — prefix every log line with a timestamp. for the girlies who need to know when things happened. 🎀
• -V, --version — print version information and exit. quick in, quick out. 💅
• -e, --log-level — set a global log-level. one level to rule them all.
• -r, --realtime PRIO — set realtime scheduler with given prio. give it the prio, it'll give you the realtime scheduler. 🔥
• -i, --gsmtap-ip — the destination IP used for GSMTAP. where the GSMTAP packets are headed, no guessing. 🦋
• -t, --trx-num — set number of TRX (default=1). one TRX is the default, so if you want more than one you're gonna have to say so. periodt. 👑

---

⭐ SEE ALSO ⭐

• osmo-trx-uhd(1)
• osmo-bsc(8)

go read those too, iykyk 😌

---

🙈 AUTHOR 🙈

this manual page was written by Ruben Undheim <ruben.undheim@gmail.com> for the Debian project (and may be used by others). giving credit where credit is due, always. 💖

---

and that's the whole page, bestie. every flag, every protocol, every little default. nothing skipped, nothing invented. we ate. 💅

dated 26 January 2026 — with love, from the OSMO-BTS-TRX(8) manual page itself 🌸🦋✨