New Product: MFF2 ZIF Adapter


sysmocom announces the availability of the new MFF2 ZIF Adapter, an adapter to use MFF2 SIMs in regular SIM slots.

As Machine Form Factor (MFF) SIMs - which are usually soldered directly on devices PCB - are gaining more and more momentum in IoT, sysmocom reacted on the demand for an adapter to test, debug and analyze such SIMs with existing tools like our SIMtrace board but also other devices with usual SIM card slots.

The Adapter offers the same FPC connector as our SIMtrace board and uses the same adapter cables (not included).

The MFF2 ZIF Adapter is in stock and can be ordered via the sysmocom webshop.

New Product: Osmocom icE1usb


Today, sysmocom announces the availability of the Osmocom icE1usb, an E1 USB interface.

With it's built-in GPS-DO, the Osmocom icE1usb can provide a highly stable reference clock, which is for example required by most legacy GSM/2G base stations from major vendors such as Ericsson, Nokia and the like.

Osmocom icE1usb is 100% Open Source Hardware and requires no special-purpose silicon ICs like E1 framers or line interface units, which are increasingly difficult to source as E1/TDM technology is becoming more of a niche.

The icE1usb are in stock and can be ordered via the sysmocom webshop.

New Product: sysmoISIM-SJA2


After many years of supplying the world wide community of cellular researchers, academia and operators of private cellular networks for many years with the programmable SIM card sysmoUSIM-SJS1, it is time for a change:

Today, sysmocom announces the availability of the sysmoISIM-SJA2, the successor product to the sysmoUSIM-SJS1.

The major improvements include:

  • ISIM application for IMS/VoLTE (in addition to SIM + USIM applications)

  • pre-installed ARA-M applet for use with Android Carrier Privileges

  • only one product covering 2FF, 3FF and 4FF form-factor

  • All 3GPP-specified 5G related files on card

The new card of course includes all of the major features of its predecessor, such as:

  • modification of the contents of any file in the SIM, ISIM, USIM application (using AMD pin)

  • modification of key material, selected authentication algorithm and related parameters (using AMD pin)

  • installation of Java applets via GlobalPlatform SCP02 or TS 03.48 OTA

  • remote file management via TS 03.48 OTA

sysmocom has already ported the pySim and sysmo-usim-tool software, so both fully support the sysmoISIM-SJA2.

The cards are in stock and can be ordered via the sysmocom webshop

New Product: M.2 WWAN modem breakout board


More and more modern cellular modems are being released not in the classic miniPCIe form-factor, but in M.2 (NGFF). Particularly for LTE-Advanced and 5G/NR, this is a requirement as only M.2 has USB 3.0 and a PCIe lane for higher connection speeds to the host processor.

Following the success of sysmocom’s miniPCIE WWAN break-out board, we have now released a M.2 WWAN modem break-out board. It can host any M.2 cellular modem and exposes not only the USB 3 super-speed signals, but also the PCIe lane. With the included cable and PCIe adapter, it can be connected to any PCIe x1 slot in a PC or embedded computing board.

To read more information about the M.2 WWAN modem breakout board, please visit the product page.

sysmoOCTSIM 8 slot smart card reader

The success of sysmocom’s sysmoQMOD board made us think about a reliable, compact and economic solution to serve multiple SIM cards for sysmoQMOD or other targets that work with remote SIM cards

The sysmoOCTSIM is a carrier board for up to 8 SIM cards in 2FF (Mini-SIM) format.

sysmoOCTSIM can be combined with the sysmoQMOD (quad mPCIE modem with built-in remote SIM function) and the osmo-remsim software to build complete end-to-end remote SIM systems. This allows the alternating use of multiple SIMs with each of the modem by switching between those SIMs via software.


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

Osmocom CNI successfully integrated with Amarisoft eNodeB and EPC , interoperating with CSFB and SMS-over-SGs

sysmocom has successfully tested Circuit Switched Fallback (CSFB) and SMS-over-SGs interoperability of the Amarisoft eNodeB and EPC with the Osmocom CNI stack. CSFB and SMS-over-SGs support have been implemented in the Osmocom stack mainly by providing the SGs interface, which bridges the 4G MME to the 2G/3G MSC.

With CSFB and SMS-over-SGs it is now possible to operate 2/3/4G networks based on Amarisoft and Osmocom components. As both implementations have implemented SGs and CFSB based on 3GPP TS 29.118 and 3GPP TS 23.272, we are confident regarding interoperability with other CSFB components' vendors.


sim cards back in stock

We are lucky to announce, that our famous sysmoUSIM cards are in stock again and you can easily order them via our webshop As we had several requests in larger quantities, please take also in consideration that we are able to produce cards with your settings (starting from 500pc) or with your artwork (starting from 1000pc) or with your complete own profile. Challenge us with your request.


sysmocom webshop reopened

The good news is that we found a temporary workaround related to the various changes in shipping introduced by our shipping provider, Deutsche Post.

So as of now, only two days after having to close it, we are re-opening the webshop and are accepting new orders.

We still need to introduce plenty of changes such as talking to new APIs, rewriting the shipping integration software for our ERP system, integrating printers, etc. - which will all distract us from developing Open Source mobile communications - but at least we can now do that while the shop is still running.

sysmocom webshop temporarily closed

NOTE: This post only applies to the sysmocom webshop which we operate as a service to the wider user and developer communities around Osmocom and other open source and open hardware projects. The sysmocom sales department is still selling the professional portfolio products via normal sales channels as before!

Unfortunately our shipping carrier, Deutsche Post (the German post office) has decided to change pretty much all aspects related to international shipments from January 1st, 2019. Those changes start from not being able to send goods in letters anymore, introducing new types of shipping products that are not an exact replacement of the old services, requiring completely different shipping labels in different size/format, differences in terms of insurance coverage, etc.

Despite sysmocom shipping more than 600 webshop orders per year with Deutsche Post, and us using the existing APIs for electronic purchase and franking of shipments, we have not been informed in advance of those changes coming into effect on January 1st, 2019.

We are now studying to understand all related changes, which involves (as we can tall so far):

  • signing a new contract with Deutsche Post

  • change/rewrite our software for generating franking / shipping labels (which we of course released as open source software)

  • purchasing of new label printers and labels to accomodate the significantly larger label formats

  • rewriting the shipping rate calculator for our webshop taking into account all the new constraints and rules

The webshop has to remain closed until this is completed. We don't have an expected date when it will reopen, but it's likely going to be closed for at least all of January 2019.

Please refrain from inquiring sysmocom about purchasing related products until the webshop reopens. We do not have the resources to manually process orders outside our (until now) streamlined and automatized webshop order process.

Thanks for your patience.

Join OsmoCon 2018 on October 18th/19th in Berlin

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


As a result to the success of last's year first OsmoCon, we are proud to present this year OsmoCon 2018 in a new venue with even more enlightening speeches over two days.

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.

Among the talks are topics like:

  • "External SS/USSD Interface" by Vadim Yanitskiy (freelance, RU)

  • "3GPP LCLS in Osmocom" by Harald Welte (sysmocom, DE)

  • "Operating a real-world roaming 2G network using Osmocom" by Anthony Timson (Wavemobile, UK)

  • "Inter-BSC hand-over" by Neels Hofmeyr (sysmocom, DE)

  • "Load-based hand-over" by Neels Hofmeyr (sysmocom, DE)

Have a look at the full schedule and buy your tickets here.

The dinner on Thursday evening will give you the possibility to network and relax.

Join us for two 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.