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Samsung LTE USB stick GT-B3730/B3740 Samsung LTE USB dongles codename Kalmia I acquired a couple of GT-B3740 800Mhz LTE Dongle, and decided to open one of them to find out what the chipset was used in it. The very surprizing part was to see that it had a JTAG connector there and... Read More →

With the explosion in the mobile communications sector, the deregulation of public switched telecommunication networks (PSTN) as well as the introduction of many new services the dependence on the signalling system 7 (SS7) network has rapidly increased over the last two decades.... Read More →

The problem with wireshark Primary usage of wireshark is to visualize packets coming from traditional IP traffic, that is why default wireshark settings provides a relatively good overview of IP packets for most of the use cases. The problem is that this configuration is not at... Read More →