Wireshark Filtering S1AP to find Subscriber Signaling
Nick Using Wireshark to filter S1 messaging to find signalling from a specific subscriber,
August 2020
List of Open Source Evolved Packet Core (EPC) Implementations
List of Open Source Evolved Packet Core implementations
Android Carrier Privileges
Unlocking Carrier Privileges through certificate on a UICC
Getting TEID up with GTP Tunnels
What's the deal with Tunnel Endpoint Identifiers and what do they do?
GSM with Osmocom: Handovers
A look at the Handover process between Cells / BTSs in GSM using the Osmocom stack.
Diameter Dispatches: S6a Authentication Information Request / Answer
This is part of a series of posts focusing on common Diameter request pairs, looking at what’s inside and what they do. The Authentication Information Request (AIR) and Authentication Information…
GSM with Osmocom: Channel Types
When setting up the timeslots on the TRX for each BTS on your BSC, you’ll notice you have to set a channel type. So what do these acronyms mean, and…
Ansible – Timeout on Become
Increasing the SSH timeout in Ansible
GSM with Osmocom: Silent SMS & Silent Calls
Depending on if you’re wearing a tin foil hat or not, silent SMS and silent calls could be a useful tool to for administering the network or a backdoor put…
S1AP – Relative Capacity (87) on MME
Functionality of eNB MME selection based on Relative Capacity IE