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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....

cni-legacy

legacy and/or unmaintained CNI projects

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).

Huawei HiSilicon Cellular Modems

Information collected on Huawei cellular modems

EPC - Evolved Packet Core

Information about the Evolved Packet Core (EPC) and related open source projects

Altair LTE Modems

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

Qualcomm Linux Modems by Quectel & Co

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

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....
gr-gsm

Gnuradio blocks and tools for receiving GSM transmissions

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.

FidoNet

FidoNet related stuff

erlang/mgw_nat

Erlang MGW NAT/MASQ implementation

erlang/signerl

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

erlang/osmo_sccp

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

erlang/osmo_ss7

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

erlang/osmo_map

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

Distributed GSM

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

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.

Cellular Modem Information

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

libosmo-dsp

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

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.

cellmgr-ng

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

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....

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

osmo-isdntap

A small program used to tap an E1 PRI line and obtain GSMTAP traces of the D channel as well as raw files with B channel content of each direction of each call.

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