A look at the PCRF in EPC Networks, and the Charging Rules that lay at the heart of it all.
Category: EPC
Using FreeDiameter, Python and our newly released “rt_pyform” module to rewrite AVPs in your FreeDiameter based Diameter Routing Agent.
An overview of the who, how and why of Non-IP Data Deliver in NB-IoT cellular services.
A look at why we’d want to apply translations to Diameter AVPs inside a Diameter Routing Agent
Looking at overriding the default Diameter routing logic in FreeDiameter with rt_default
Using FreeDiameter as a DRA
Diving back into the world of Diameter Routing Agents with a look at the logic that defines how a DRA routes traffic from one place to another.
An introduction to Diameter Routing Agents, covering what is a DRA is and why you need them in your life / network.
Filtering for 3gppnetwork.org domains in Wireshark to make your troubleshooting easier
Using OpenSSL to generate self-signed certs for use in FreeDiameter
Getting started with CGrateS to bill for calls in a Telecom environment.
Step right up folks and test your skills on EPC with this PCAP analysis challllleeennnggeee!
A look at how Dedicated Bearers get established for VoLTE.
Categories
Backing up and Restoring Open5GS
How to backup and restore Open5Gs config between servers
A look at Centralized vs DeCentralized Online Charging with the aid of sugar.
A glimpse into the complexities of prepaid billing (Online Charging) Diameter based networks.
Categories
Open5GS without NAT
Setting up Open5Gs without a NAT requirement, and the routing required to do so.
A look at how the HSS can update the profile of an already in-use subscription using Insert Subscriber Data Request/Response.
Categories
PS Data Off
How turning mobile data off, doesn’t, in LTE and 5G.
A Bind environment in a Docker container for experimenting and learning ENUM for DNS based Call Routing.