A look at MTU and its role in LTE and 5G Transmission.
Using Wireshark to sniff communication between your computer and Smart Card / SIM Card
Searching your Bash history the easy way.
Sending commands/APDUs to a real life Smart Card.
Unwrapping NBNco’s FTTN Cabinets and taking a look at what’s inside.
Bolting an SNMP Server and stats collection onto your existing Python projects.
It’s 2021, and everyone loves Containers; Docker & Kubernetes are changing how software is developed, deployed and scaled. And yet so much of the Telco world still uses bare metal servers and dedicated hardware for processing. So why not use Containers or VMs more for VoIP applications? Disclaimer – When I’m talking VoIP about VoIP […]
Australia is a strange country; As a kid I was scared of dogs, and in response, our family got a dog. This year started off with adventures working with ASN.1 encoded data, and after a week of banging my head against the table, I was scared of ASN.1 encoding. But now I love dogs, and […]
Well that was easy…
A look at SCTP multi-homing in practice.
How SR-IOV and DPDK play into faster performance of Virtual Network Functions (VNFs) for 3GPP core networks.
A look at the Confidentiality Algorithms used in 3GPP Networks, MILENAGE, XOR & Comp128
Using Docker to spin up environments to test Kamailio in
So far with most of our discussions about Kamailio we’ve talked about routing the initial SIP request (INVITE, REGISTER, SUBSCRIBE, etc), but SIP is not a one-message protocol, there’s a whole series of SIP messages that go into a SIP Dialog. Sure the call may start with an INVITE, but there’s the 180 RINGING, the […]
A research paper from the 1960s examining how Telecommunications pillars hold up to gunfire…
Our BTS is going to need an accurate clock source in order to run, so without access to crazy accurate Timing over Packet systems or TDM links to use as reference sources, I’ve opted to use the GPS/GLONASS receiver built into the LMPT card. Add new GPS with ID 0 on LMPT in slot 7 […]
A look at APDUs and Interacting with Cards
The basics of Smart Cards & their File System
Getting up close and personal with Smart Card / SIM Cards
The buttinski test phones I know and love.