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Name Description
osmo-sim-auth
osmo-uecups
SIM card related Projects
Sim Toolkit
SIMtrace 2

2nd generation SIMtrace: Uses same circuit board / peripherals as SIMtrace 1, but contains a SAM3 (Cortex-M3) instead of the SAM7 (ARM7TDMI) microcontroller. The SAM3 has a faster CPU and its internal USB peripheral offers more endpoints. This can be used for more features in the devie firmware, such as man-in-the-middle....

SDR (Software Defined Radio)

A collection of SDR related software + hardware projects. In particular, look at the sub-projects such as rtl-sdr, gr-osmosdr, osmo-fl2k, gr-gsm, libosmo-dsp

Hardware Projects

A collection of various small (and not so small) hardware projects created as tools to the cellular research community

osmo-e1-recorder

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 bases 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)....

Erlang Core Network Signalling Projects

A set of almost complete Erlang projects implementing the core network protocol stacks from SS7/SIGTRAN over SCCP up to TCAP, MAP and CAP.

Currently not actively maintained due to lack of active customer/user interest.

multi-voltage USB UART

A small USB UART board with two CMOS UARTs exposed on 2.54mm headers.

The logic voltage can be manually selected at 1.8, 2.3, 2.5, 2.8, 3.0 or 3.3V

OsmoHNBGW

An Open Source implenentation of a HNB-GW (HomeNodeB-Gateway), implementing the Iuh, IuCS and IuPS interfaces. It aggregates the Iuh links from femtocells (hNodeBs) and presents them as regular IuCS and IuPS towards MSC and SGSN (such as OsmoMSC and OsmoSGSN). It uses M3UA as signaling transport....

cellmgr-ng

An utility to convert the circuit-switched A interface of a BSplus into SCCP-lite A-over-IP

OCTOI - Osmocom Community TDM over IP

Building a community TDM-over-IP network so retronetworking enthusiasts can interconnect equipment with ISDN, Frame Relay or other technologies using PRI (E1) or BRI TDM technology in a private TDM network.

libosmo-dsp

C-language library for common DSP (Digital Signal Processing) primitives for SDR (Software Defined Radio). They are part of the Osmocom project.

Cellular Modem Information

collects various bits of (low-level technical) information on cellular modems

libosmo-ranap

De- / encode RANAP messages and provide Iu client implementations (to OsmoMSC for IuCS and OsmoSGSN for IuPS).
Lives in the osmo-iuh git repository.

Distributed GSM

Distributed GSM architecture, suitable for de-centralized, autonomous networks with intermittent connectivity.

erlang/osmo_map

Erlang implementation of a TCPAP+MAP codec (encoding/decoding). You most likely want to use signerl, not this.

erlang/osmo_ss7

Erlang implementation of M2UA/M3UA/MTP3/SCCP/ISUP codec + utils

erlang/osmo_sccp

Erlang implementation of SCCP (ITU-T Q.71x)

erlang/signerl

Erlang implementation of TCAP + MAP Signalling Protocols, runs on top of osmo_ss7 and osmo_sccp

erlang/mgw_nat

Erlang MGW NAT/MASQ implementation

FidoNet

FidoNet related stuff

osmo-ccid-firmware

Firmware for Smart Card Reader implementing the USB CCID (Circuit Card Interface Device) Specification, based on Atmel ASF4. Used on the sysmoOCTSIM 8-way CCID reader.

gr-gsm

Gnuradio blocks and tools for receiving GSM transmissions

linmodem

Here is the generic Linux Modem. This modem is totally software, it means that all the DSP stuff is done by the main CPU, as in some so called "winmodems".

  • Linmodem is also a research project. It contains all the necessary stuff to test new digital communication algorithms. The line simulator and the X11 interface can be used to simulate a complete communication chain....
Qualcomm Linux Modems by Quectel & Co

Information / Research on the internals of Qualcomm Linux based cellular modems available from Quectel and other vendors

Altair LTE Modems

Information about the Altair "FourGee" 3100 - 3800 LTE modems

Huawei HiSilicon Cellular Modems

Information collected on Huawei cellular modems

Core testing infrastructure

Issues that have to do with our core testing infrastructure (TTCN3 issues, docker setup) go here.

Issues specific to one test component should still be filed in the respective projects (e.g. osmo-msc).

cni-legacy

legacy and/or unmaintained CNI projects

OsmoMSC

New (2017) Osmocom Mobile Switching Center (MSC). It provides a 3GPP AoIP interface towards BSCs like OsmoBSC as well as 3GPP IuCS towards RNCs or HNB-GWs like OsmoHNBGW as well as GSUP towards OsmoHLR. Also features a minimal built-in SMSC with SMPP interface....

OP25

OP25 is a not-for-profit project to bring together folks that are interested in implementing APCO P25 using a software-defined radio. Our goal is to build a software-defined analyzer for APCO P25 signals that is available under the GNU Public License (GPL)....

OpenVizsla USB tracer/analyzer

OpenVizsla is a Open Hardware FPGA-based USB analyzer for USB Low-Speed, Full-Speed and High-Speed. Unlike other similar devices on the market, hardware design files are available as well as full source code for the firmware and client software of the device....

osmo-remsim

osmo-remsim is the Remote SIM software suite used to manage a set of phones/modems and a set of SIM/banks as well as the dynamic mappings of SIM cards to their remote phones/modems.

It consists of:
  • osmo-remsim-client: physically emulate SIM card at modem/phone using SIMtrace2 cardem or sysmoQMOD...
OsmoBSC

OsmoBSC is an Open Source BSC (GSM Base Station Controller) with A-bis/IP and A/IP interface. It supports a variety of BTS Vendors/Models, including some Siemens, Nokia, Ericsson and ip.access models. However, main focus during the last 5+ years is OsmoBTS based BTSs....

OsmoBSCNAT

OsmoBSCNAT is an A-interface aggregator that can aggregate many A-interface links from many BSCs and present them as one A interface towards a MSC. Most normal networks will not need this component, it only serves some special use case scenarios. It requires SCCPLite and doesn't work with 3GPP AoIP....

OsmoBTS

OsmoBTS is an Open Source GSM BTS (Base Transceiver Station) with A-bis/IP interface. It implements support for a variety of PHY/Hardware, such as sysmocom sysmoBTS, OCTSDR-2G and LiteCell 1.5, but also general-purpose SDR boards such as USRP or LimeSDR via OsmoTRX....

Osmo-CC

Osmocom Call Control. A new, protocol-agnostic way of interfacing call control of various different protocols with each other. Currently used within the osmocom-analog domain and with several endpoints.

Endpoints

OsmoCBC

Osmocom Cell Broadcast Centre (CBC). It is the heart of the Cell Broadcast Service (CBS) as well as a variety of disaster/emergency warning systems (PWS).
OsmoCBC provides a REST/JSON interface for receiving cell broadcast messages from external entities and a 3GPP CBSP interface towards BSCs like OsmoBSC. Soon to be extended with SABP support towards RNCs....

osmo-clock-gen

Osmocom Clock Generator board, using the Si5351C clock synthesizer to derive up to 8 different clocks from a single clock reference, such as a 10MHz GPS-DO or OCXO.

Core Network (CN)

Osmocom Core Network (CN). This includes Free/Open Source Software implementation of cellular core network elements, such as OsmoMSC, OsmoSGSN, OsmoHLR, OsmoGGSN and others.

osmo-e1d

Osmocom E1 daemon; used as a "software defined" implementation of E1, where the framer and HDLC controller is implemented inside osmo-e1d and a relatively simple hardware (such as USB attached hardware) interfaces with the actual E1 physical line.

OsmoMGW

Osmocom Media Gateway, to manage, connect and optionally transcode voice streams between different network elements such as BTSs and external entities like SIP. It is typically co-located with both OsmoBSC and OsmoMSC and controlled by them via IETF MGCP (Media Gateway Control Protocol)....

osmo-pcap

Osmocom PCAP utilities, such as a distributed client/server capture architecture. It allows a number of PCAP probes on remote hosts, feeding captured packets to a central host in the network. Each probe can have different capture filters. There are multiple options for the protocol between probe and central host....

osmo-fl2k

Osmocom project to (ab)use the DAC inside the FL2000 USB 3.0 VGA adapter to transmit radio frequency

Radio Access Network

Osmocom Radio Access Network (RAN), consisting of projects like osmotrx, osmobts, osmobsc, osmopcu and osmo-hnodeb

libosmo-sccp + libosmo-sigtran

Osmocom SCCP + Sigtran (M3UA, SUA) library

OsmoSMLC

Osmocom Serving Mobile Location Center

OsmoSTP

Osmocom STP (Signal Transfer Point), implementing SS7 (MTP) routing and SIGTRAN Signalling Gateway functionality. Supports SIGTRAN only, no legacy E1/T1 based signaling links. Currently only MTP-level routing no GTR or GTT yet, but contributions in that area are very welcome....

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