A look at why we’d want to apply translations to Diameter AVPs inside a Diameter Routing Agent
Category: EPC
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.
This post is one of a series of packet capture analysis challenges designed to test your ability to understand what is going on in a network from packet captures.Download the Packet Capture and see how many of the questions you can answer from the attached packet capture. The answers are at the bottom of this […]
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.
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 […]
As the number of Private Networks built on LTE and 5G grow, how will PLMN allocation be managed?
Categories
How UEs get Time in LTE
How does “Network Time” actually get to the UE?