Chaos Computer Club - archive feed

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

Fabian Schwarze stellt sein Projekt @ventskranz im Rahmen des Freitalk N8 am 19. Oktober 2018 im Chaotikum vor. Vorweihnachtszeit 2017: Wie gestaltet man Weihnachten im einem Hackerspace? Die offensichtliche Antwort war: Bis auf die umherliegenden Süßigkeiten, den ein oder anderen Punsch oder auch den ein oder anderen Crepé ändert sich eigentlich nichts. Warum das nicht ändern: Ein Adventskranz so...

How OsmBSC was extended to support inter-BSC hand-over next to the existing intra-BSC hand-over support. In 2018, OsmoBSC has undergone significant changes to allow inter-BSC (also called "external") hand-over on the A interface. The previous hand-over implementation only supported intra-BSC type hand-overs, where both the source and the target cell are served by the same BSC. In order to support...

In 2018, OsmoBSC has undergone significant changes to allow load-based hand-over between overlapping cells. This talk describes the implementation and its configuration/use. In 2018, OsmoBSC has undergone significant changes to allow load-based hand-over. The previous hand-over implementation only supported "link budget" type hand-overs, where a hand-over would be performed as a mobile station mov...

How do you run a GSM network with unreliable backhaul, maintaining as many local services as possible available during periods of backhual outage? The traditional GSM core network is not suitable for backhaul on rural IP based internet type networks such as community mesh networks, local WISP providers, or satellite connections. We discuss some of the options for situation where intermittent backh...

How to use the SMPP interface to implement external SMS services OsmoMSC has inherited the SMPP interface from OsmoNITB. It allows you to attach external programs that can receive and transmit SMS from/to your subscribers. The talk will explain the required SMPP configuration in OsmoMSC, as well as give some simple examples in C and Python on how to actually write such an external SMPP application...

Introducing the GSUP based external USSD interface of the Osmocom Core Network stack In this talk Vadim will to share the state of external SS/USSD interface support in the Osmocom core-network stack. For many years there was the only one USSD-code (i.e. '*#100#'), that was used to get subscriber's extension. Recent developments in OsmoMSC and OsmoHLR have made it possible to connect an external U...

A quick glance at what's happening on the R&D side with osmo-remsim. osmo-remsim is a set of programs that can be used to manage populations of SIM card emulators such as SIMtrace or sysmoQMOD and make them access remote sim cards inserted into card readers or SIM banks using network protocols. about this event: https://c3voc.de

This talk introduces 3GPP "Local Call, Local Switch" and covers the capabilities of the Osmocom implementation. Traditionally, in GSM the control plan and [voice] user plane share the same path. This means that the voice call user data between two subscribers within the same cell/area goes all the way into the core network (MSC) and from there all the way back to the same cell/area and the other s...

This talk covers some MGCP background know-how, introduces OsmoMGW and explains how OsmoMGW is used by OsmoMSC and OsmoBSC to control the RTP user plane of voice calls. This talk covers some MGCP background know-how, introduces OsmoMGW and explains how OsmoMGW is used by OsmoMSC and OsmoBSC to control the RTP user plane of voice calls. about this event: https://c3voc.de

In 2018, after 6+ years of SIMtrace, we finally released SIMtrace2. This talk introduces the what, how and why. SIMtrace2 is an incremental step to SIMtrace. On the outset, it looks like a minimal change: Simply replace the SAM7S with a SAM3S microcontroller. However, due to the completely different CPU core architecture, the firmware was re-written from scratch. SAM3S supports more USB endpoints,...

Let's have a look on the roadmap for Osmocom in the next 12 months or so. Let's have a look on the roadmap for Osmocom in the next 12 months or so. about this event: https://c3voc.de

Why design a new E1 adapter in 2018? Status/progress on designing a low-cost USB E1 adapter doing all framing/processing in open source software and/or on the PC. about this event: https://c3voc.de

Moderated panel discussion with Osmocom developers and public Q&A Moderated panel discussion with Osmocom developers and public Q&A about this event: https://c3voc.de

OsmoTRX used to support only either UHD or libusrp1, with a compile-time choice. Now, we can build multiple targets such as osmo-trx-{usrp,uhd} and have added LimeSuite support with osmo-trx-lms. This talk provides a status update about developments on OsmoTRX in the recent year. As OsmoTRX was an adopted project in Osmocom, it didn't natively have VTY / config file support, nor use the Osmocom lo...

Welcome and Introduction Note from the Osmocom project founder Harald will welcome everyone to the 2018 incarnation of OsmoCon, clarify some organizational topics, highlight the schedule and express thanks to everyone making the Osmocom project and in particular OsmoCon happen. about this event: https://c3voc.de

This talk explains how Osmocom set out in late 2017 / early 2018 to establish extensive integration testing using TTCN3 and Eclipse TITAN. Osmocom developed infrastructure and test suites in the TTCN3 programming language, utilizing Eclipse TITAN. Those test suites are executed automatically on the nightly "master" of all Osmocom (CNI) repositories and help us to ensure better code quality than in...

In 2018, Steve Markgraf released osmo-fl2k, [ab]using inexpensive USB3 VGA dongles as SDR transmitters. In 2018, Steve Markgraf released osmo-fl2k, [ab]using inexpensive USB3 VGA dongles as SDR transmitters. This talk explains what you can do with osmo-fl2k, and how it came all about. about this event: https://c3voc.de

Discusses what kind of options you have in terms of SIM/USIM cards when operating Osmocom based networks This talk covers * SIM/USIM card basics * different options on what kind of SIM/USIM cards one can use in Osmocom networks * running unauthenticated/unencrypted networks with 3rd parry operator SIMs * using custom-provisioned SIMs/USIMs * Osmocom pysim to program SIM/USIMs such as sysmoUSIM-SJS...

An overview of how organizations and communities are using Osmo projects to create real-world implementations of low-cost, community-based cellular networks This talk will cover network implementations, particularly in Latin America, and explore how they are using Osmocom project software to create low-cost, sustainable projects. We will look further at how these networks are started, organized, f...