A peek under the radome of 32×32 5G Active Antenna Unit
Category: Mobile Networks
A look at how the SQN resync procedure is performed in the IMS Authentication flows
Interacting with Homer SIP capture vai the API
A look at the PCRF in EPC Networks, and the Charging Rules that lay at the heart of it all.
Adventures in setting up a non-working USSD Gateway for IMS
A look at carrying useful traffic over SS7 with a quick intro to ISUP
How much overhead is used to send the message “K” back to an SMS?
Using Kamailio with a Diameter Routing Agent
Assembling Amphenol RRU power connectors and modifying them to work with Ericsson and Nokia RRUs.
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
Okay, so a little late to the party on this one… The other day I had to setup a TDM (E1) based SS7 link (oh yes my friend – they still exist) to interconnect with another operator. I’m using Cisco’s ITP product as the STP / Signaling Gateway, and my trusty port mirror for what’s […]
Updated documentation for managing D150 transcoding cards