sysmoBTS 2100

The sysmoBTS 2100 is a new, low-power, small-formfactor IP-backhaul GSM BTS for medium coverage outdoor applications. Replacing the popular sysmoBTS 2050 it offers higher output power, integrated cavity duplexers and bigger maximum reception area.


The sysmoBTS 2100 offers supreme cost efficiency and is suitable for a wide range of applications, including:

  • Rural cellular networks in lowest-ARPU regions

  • Rapidly deployable GSM networks

  • Private GSM networks (PBX style use)

  • Remote area GSM deployments, utilizing any IP-based satellite back-haul service

  • Offshore wind farms, oil rigs

  • Onboard coverage on maritime vessels (ferries, cruise ships, commercial vessels)

Get information about the sysmoBTS 2100

sysmoQMOD quad modem board

To complete sysmocom's portfolio of lab and test solutions, we are proud to introduce our new sysmoQMOD quad modem board. The board can carry up to four mPCIe WWAN modems which can be remotely managed and monitored. The built-in remote SIM forwarding capability allows the modems to remotely utilize SIM cards from different physical locations via internet.

Due to it's open and flexible design, the sysmoQMOD is a versatile solution for hosting and controlling multiple modems in many applications like

  • remote roaming testing probes

  • cellular network service quality testing

  • least cost routing

  • equipment testing


To get more information about the sysmoQMOD, please visit the product page

sysmocom speakers at OpenCellular workshop

The first African Opencellular workshop will take place from June 19-20 in Nairobi, Kenya. This event is an excellent opportunity to learn about the OpenCellular project within the Telecom Infra Project (TIP), led by Facebook. The Osmocom GSM protocol stack is at the heart of OpenCellular.


sysmocom CEO Harald Welte will give an overview about what you can achieve using the Open Source Osmocom cellular protocol stack and participate in the panel "rural connectivity and open-source: challenges and opportunities". sysmocom develpoer Pau Espin Pedrol will cover the Osmocom end-to-end test framework osmo-gsm-tester.

sysmo NITB 3.5G starter kit limited edition

sysmocom announces the availability of a starter kit to enable an easy jump start into testing and developing 3G applications. The well known open NITB has been upgraded to 3G (aka UMTS or WCDMA) network. It now hosts hNodeB-Gateway, MSC/VLR and HLR, SGSN and GGSN but remains a simple "full network in one box" system. This makes the setup of a self-contained 3G network a snap and you can invest the resulting time savings in your research and development work.


To get more information about the sysmo NITB 3.5G starter kit LE, please visit the product page

OsmoCon 2017: Schedule + Travel Grants

The Osmocom project has just provided some updates regarding Osmocom Conference 2017:


OsmoCon 2017 is held on April 21st, 2017 and is the first technical conference for Osmocom users, operators and developers.

sysmocom is happy to provide organizational and administrative support for OsmoCon 2017. You can get your OsmoCon 2017 ticket at the sysmocom webshop.

Join OsmoCon 2017 on April 21st in Berlin

OsmoCon (Osmocom Conference) 2017 is the first technical conference for Osmocom users, operators and developers!


For the first time ever, the Osmocom Conference brings together users, operators and developers of the Osmocom Open Source cellular infrastructure projects, such as OsmoBTS, OsmoBSC, OsmoSGSN, OpenGGSN and others.

OsmoCon 2017 is your opportunity to deepen your understanding of Osmocom technology and to meet other people in and around the Osmocom Ecosystem.

Join us for a day of presentations and discussions with the main developers behind Open Source Mobile Communications, as well as commercial and non-profit users of the Osmocom cellular infrastructure software.

Find more information on Osmocom.

Contribute to Osmocom 3.5G and receive a free femtocell!

In 2016, Osmocom gained initial 3.5G support. This means you can run your own small open source 3.5G cellular network for SMS, Voice and Data services. However, the project needs more contributors: Become an active member in the Osmocom development community and get your nano3G femtocell for free. We hereby issue a call for proposals to the general public. Let us know how you would help us improving the Osmocom project if you were to receive one of those free femtocells.


nano3G femotcell

We will setup a dedicated community where all developers of the 3.5g acceleration project can share their experiences and will receive dedicated support of the Osmocom team. For this exciting project, sysmocom - one of the main drivers of the Osmocom project - will provide 50 nano3G femtocells for free, each with 5 SIM cards for an easy start. The call for proposals end is extended until 15th of February 2017. The selected developers will be announced on February 27.

Read the announcement.

sysmocom releases sysmoUSIM User Manual

For many years, we have been offering SIM/USIM cards alongside our cellular network infrastructure product. After all, of what use is a small, private GSM/GPRS/EDGE or now UMTS network without your own SIM cards.


sysmocom SIM/USIM cards

The customers of our SIM/USIM cards have traditionally been cutsomers of our cellular infrastructure products, and there was little requirement to provide any type of documentation or support for the cards themselves.

However, more recently, quite a number of customers are using our cards also with other cellular network infrastructure implementations, and hence are asking about more information for the cards.

We are happy to respond to this with the newly-created sysmoUSIM User Manual which includes some generic introduction to SIM/USIM cards, a full reference list of the specifications our cards comply with, as well as some examples on how to use the Osmocom utilities to test and/or re-provision the cards.

sysmocom publicly releases Osmocom user manuals

Today, sysmocom GmbH announces the public availability of a set of freely available user manuals for a range of Osmocom software projects for operation of Free Software based cellular networks.

The Osmocom projects themselves do not provide a lot of documentation, and the sysmocom-created user manuals had so far been available only to customers of sysmocom GmbH.

"We expect that the availability of free public user manuals will simplify the configuration, deployment and operation of Free Software based cellular networks world-wide." says Harald Welte, Managing Director of sysmocom GmbH.

The release includes user manuals and VTY command line reference manuals for the OpenBSC flavors OsmoBSC and OsmoNITB, as well as OsmoBTS, OsmoPCU, OsmoNITB and OsmoSGSN. Both PDF versions as well as the asciidoc source code is made available under the GNU Free Documentation License (GFDL).

The PDF renderings of the latest version of the manuals are available from, while the asciidoc source code is available from

Osmocom ( is a vendor-neutral, collaborative effort to create and maintain Open Source implementations of mobile communications protocol stacks and network elements. It was originally created by Harald Welte in 2010, when the OpenBSC project was joined by more sister projects related to Open Source Mobile Communications.

sysmocom GmbH ( is a Berlin (Germany) based business offering custom tailored cellular infrastructure and testing solutions. It was founded by two of the original developers of OpenBSC, and is a major contributor to many of the Osmocom software projects.