This is a group of Osmocom programs implementing cellular network infrastructure components for GSM, GPRS, EDGE, UMTS, HSPA, LTE and their associated interfaces and protocol stacks.

This includes components for classic circuit-switched GSM:

  • OsmoBTS implementing a GSM Base Transceiver Station
    • optionally together with OsmoTRX to implement the GSM physical layer on a Software Defined Radio
  • OsmoBSC implementing an IP-based GSM Base Station Controller with Abis/IP and 3GPP AoIP interface
  • OsmoMSC implementing an IP based GSM and UMTS Mobile Switching Center with 3GPP AoIP and Iu-CS interface
  • OsmoHLR implementing a minimalistic HLR compatible only with OsmoMSC
  • OsmoSTP implementing a minimalistic Signal Transfer Point for M3UA, SUA and SCCPlite
  • OsmoNITB, our legacy implementation a minimal network-in-the-box with Abis/IP interface

As well as the following components for GPRS/EDGE networks:

  • The OsmoPCU project, implementing a GPRS Packet Control Unit with Gb/IP interface
  • The OsmoSGSN project, impleenting a Serving GPRS Support Node with Gb/IP, Iu-PS and GTP
  • The OpenGGSN project, implementing a Gateway GPRS Support Node

Further projects related to UMTS/HSPA networks:

  • The OsmoHNBGW project, implementing a HomeNodeB-Gateway with Iuh, Iu-CS and Iu-PS


For a list of videos from conferences about our activities, please see Videos_of_Presentations

Auto-generated list of immediate sub-projects:

Issue tracking

open closed Total
Bug 383 796 1179
Feature 283 327 610
Support 13 27 40

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Manager: daniel, dexter, fixeria, horiz0n, neels, pespin, spaar, steve-m, tnt

Developer: ahuemer, BastusIII, csaba, csaba.sipos, daniel, dexter, dlsitzer, efistokl, fixeria, gnutoo, Hoernchen, horiz0n, hsiedler, ipse, jerlbeck, jolly, justin.repollo, keith, kluchnikov, laforge, lynxis, maike, marcin, mschramm, msuraev, neels, osmith, pablo, pespin, ptrkrysik, roh, shoragan, sonny.lafuente, spaar, steve-m, steviehs, stsp, stuge, tnt, tsaitgaist, ttsou, zecke

Reporter: acassis, ahuemer, Alin, alteholz, anmu, ant, arvind.sirsikar, BastusIII, ben.foxmoore, benoit, bernie, blobb, cdevine, circle, craig_comstock, csaba, csaba.sipos, d8g11qnrlqjn, daniel, Darkstar, dburgess00, demodulate, dexter, dima, dlsitzer, domi, DonnchaC, duo_kali, efistokl, emvivre, encrypt, escogido, fixeria, fontanon, garwin, gnutoo, Hoernchen, horiz0n, hsiedler, iamdielenram, iliushin, ipse, jbruckner, jerlbeck, johilg, jolly, justin.repollo, kaber, kashif, keith, khorben, kluchnikov, laforge, lorenzo.cavallini, luca, lynxis, maike, manatails, marcin, mazzoo, meathbroadband, mold, morphis, mschramm, msuraev, NavinF, neels, nibbler, nion, osmith, pablo, pespin, ptrkrysik, purpleidea, roh,, roox, rubund, sammachin, schneider, ScottyTM, Sec, shoragan, sonny.lafuente, spaar, steve-m, steviehs, stsp, stuge, tec, theresa, thomasDOTwtf, tnt, tsaitgaist, ttsou, Twi, unrznbl, vbohinc, vogelchr, wirelesss, zecke, zivillian

TCC Project Members: 9muir, daniel, dexter, hsiedler, kashif, laforge, lynxis, mschramm, msuraev, neels, osmith, pespin, roh, stsp

sysmocom team: daniel, dexter, Hoernchen, hsiedler, laforge, lynxis, maike, mschramm, msuraev, neels, osmith, pespin, roh, steviehs, stsp, tsaitgaist, zecke

Latest news

Binary packages for Raspbian 9
Osmocom now offers binary packages for Raspbian 9
Added by laforge 4 months ago

New Osmocom Cellular software versions released!
Added by laforge 4 months ago

New Osmocom Cellular software versions released!
Added by laforge about 1 year ago

Osmocom nightly + latest feeds for Ubuntu 18.04
Osmocom package feeds for Ubuntu 18.04
Added by laforge about 1 year ago

Newspaper article on Osmocom based GSM networks in Mexico
German newspaper article about how Rhizomatica uses Osmocom to provide telephony to rural communities in Oaxaca, Mexico
Added by laforge over 1 year ago

View all news

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