Categories
EPC LTE Python

Ansible for Scaling and Deployment of Evolved Packet Core NEs

Using Ansible to orchestrate EPC Network Elements

Categories
EPC LTE Python RFCs & Standards

GTPv2 – F-TIED Interface Types

A quick look at the Interface Types in the F-TIED field in GTPv2

Categories
EPC EUTRAN Kamailio LTE Mobile Networks RFCs & Standards Voice over IP

Things I wish I knew about setting up private VoLTE Networks

Lessons learned about setting up VoLTE / IMS Networks at small scale.

Categories
EUTRAN LTE Mobile Networks

BaiCells Neutrino eNB Setup

Configuring BaiCells Neutrino eNB

Categories
EPC EUTRAN LTE Security Voice over IP

VoLTE / IMS – P-CSCF Assignment

How the P-CSCF address is assigned to a UE in Protocol Configuration Options (PCO) during bearer establishment.

Categories
EUTRAN LTE Mobile Networks Software

SRS LTE – Software Defined LTE Stack with BladeRF x40

Using SRS LTE Stack with the BladeRF x40 Software Defined Radio (SDR)

Categories
EPC EUTRAN LTE Mobile Networks Python RFCs & Standards Software Voice over IP

PyHSS Update – IMS Cx Support!

An update to PyHSS to support IMS Authentication for VoLTE

Categories
EPC EUTRAN LTE RFCs & Standards Voice over IP

IMS / VoLTE IPsec on the Gm Interface

The exchange between a UE and P-CSCF to put SIP traffic into IPsec encapsulated payloads.

Categories
EPC EUTRAN LTE Security Voice over IP

Using Wireshark to peer inside IPsec ESP VoLTE data from the P-CSCF

Viewing the payload of an Encapsulated Security Payload in Wireshark.

Categories
EPC Kamailio LTE

Kamailio Bytes – Configuring Diameter Peers with CDP

Introducing C Diameter Peer module in Kamailio to manage Diameter Peers, monitor their state and handle the connections.

Categories
EPC EUTRAN LTE Mobile Networks Security Software Voice over IP

VoLTE/IMS Debugging on Samsung Handsets using Sysdump & Samsung IMS Logger

Unlocking the built in IMS Debugging tool in Samsung’s Sysdump Utility

Categories
EPC EUTRAN LTE Mobile Networks Python RFCs & Standards Software

PLMN Identifier Calculation (MCC & MNC to PLMN)

How to encode and decode MCC and MNC as PLMN Identifiers

Categories
EPC EUTRAN LTE Python RFCs & Standards Security Software

PyHSS Update – MongoDB Backend & SQN Resync

Feature Update on PyHSS the Python Home Subscriber Server

Categories
EPC EUTRAN GSM LTE Mobile Networks RFCs & Standards Security

Querying Auth Credentials from USIM/SIM cards

Using osmo-sim-auth to query USIM/SIM cards authentication mechanism.

Categories
EPC EUTRAN LTE Mobile Networks RF Security

HSS & USIM Authentication in LTE/NR (4G & 5G)

Exploring the how and why of Authentication in LTE & NR networks.

Categories
Australian Telco EUTRAN Mobile Networks Software

Making use of Australian Elevation Data in Forsk Atoll

Importing Elevation data from ELVIS into Forsk Atoll

Categories
EPC LTE Mobile Networks RFCs & Standards

Why GTP for LTE?

Why and How GTP is used in LTE networks to carry user data.

Categories
EPC EUTRAN LTE Mobile Networks Security

Roll your own USIMs for Private LTE Networks

Adventures in getting USIMs to use on private LTE networks.

Categories
EPC EUTRAN LTE Mobile Networks

LTE / EUTRAN – Idle Detach

Overview of the packet flow for a UE Idle detach from the network.

Categories
EPC EUTRAN LTE Mobile Networks

Subscribed-Periodic-RAU-TAU-Timer

Periodic Tracking Area Update timer purpose