EPC LTE Mobile Networks Python RFCs & Standards SDM Software

Telephony binary-coded decimal (TBCD) in Python with Examples

Chances are if you’re reading this, you’re trying to work out what Telephony Binary-Coded Decimal encoding is. I got you. Again I found myself staring at encoding trying to guess how it worked, reading references that looped into other references, in this case I was encoding MSISDN AVPs in Diameter. How to Encode a number […]


Adding Vlans to VMware Workstation

Setting up VLANs in Workstation to allow ever-more complicated network setups.


K8s multiple objects in YAML File

Defining multiple K8 objects in the same YAML file

5G SA EPC LTE Mobile Networks SDM Software

Open5Gs Database Schema Change

New database time to support slicing and a migration path for existing users.

EPC Kamailio LTE Mobile Networks SDM Software

A very unstable Diameter Routing Agent (DRA) with Kamailio

I’d been trying for some time to get Kamailio acting as a Diameter Routing Agent with mixed success, and eventually got it working, after a few changes to the codebase of the ims_diameter_server module. It is rather unstable, in that if it fails to dispatch to a Diameter peer, the whole thing comes crumbling down, […]

Notes RFCs & Standards Software

Diff + Wireshark

Comparing packet contents with Wireshark and a diff utility

EPC LTE Mobile Networks Python Software

PyHSS Update – YAML Config Files

Introducing YAML based config files for defining how PyHSS should be setup

Linux Notes Software

Being mean to Mikrotiks – Pushing SMB File Share

A Mikrotik is not a NAS. Or is it?

5G SA LTE Mobile Networks Python Security Software

PyHSS New Features

Thanks to some recent developments, PyHSS has had a major overhaul recently, and is getting better than ever, Some features that are almost ready for public release are: Config File Instead of having everything defined all over the place a single YAML config file is used to define how the HSS should function. SCTP Support […]

Notes Python Software

Adding SNMP to anything with Redis and Python

Bolting an SNMP Server and stats collection onto your existing Python projects.

Software VoIP

VoIP is an only child – ‘Gotchas’ on running VoIP applications inside Containers

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 […]

Mobile Networks Python RFCs & Standards Software

Dr StrangeEncoding or: How I learned to stop worrying and love ASN.1

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 […]


MSSQL in Docker

Well that was easy…

EPC Mobile Networks RFCs & Standards Software

Getting the GTP-U Packets flowing Fast – DPDK & SR-IOV

How SR-IOV and DPDK play into faster performance of Virtual Network Functions (VNFs) for 3GPP core networks.

Linux Software

Docker Cheatsheet

Cheat sheets for common Docker Commands

EPC LTE Mobile Networks Software

List of Open Source Evolved Packet Core (EPC) Implementations

List of Open Source Evolved Packet Core implementations

GSM IMS / VoLTE LTE Mobile Networks SDM Software

Android Carrier Privileges

Unlocking Carrier Privileges through certificate on a UICC

Python Software

Ansible – Timeout on Become

Increasing the SSH timeout in Ansible

EUTRAN LTE Mobile Networks RFCs & Standards Software

Diameter Dispatches – Origin-State-Id AVP

What the Origin-State-Id AVP does and how it is used to track if a Diameter peer restarts.

GSM Mobile Networks RF Software

Configuring YateBTS for Software Defined GSM/GPRS

Configuring YateBTS NIPC with a BladeRF Software Defined Radio