Load Testing with SIPp

06/10/2019Kamailio, VoIPLoad Testing, SIP, SIPp, VoIPNick

SIPp (a performance testing tool for SIP) to simulate many concurrent calls leading to many concurrent transcoding sessions.

SIP SDP – ptime

15/09/2019RFCs & Standards, VoIPmaxptime, ptime, RTP, SDP, SIP, VoIPNick

SDPs ptime values, what it means, how it can go wrong and how to fix it.

Virtualized Transcoding Dimensioning

01/09/2019Kamailio, VoIPRTP, RTPEngine, rtprelay, SIP, Transcoding, Virtualization, VM, VoIPNick

Load testing a standard VM to see how many RTPengine transcoding sessions it can manage concurrently

RTPengine Python API Calls via ng Control Protocol

22/08/2019Python, VoIPPython, RTP, RTP Proxy, RTPEngine, SIP, VoIPNick

Connecting to RTPengine via Python

Diameter Routing Agents (DRA)

28/07/2019EPC, LTE, Mobile Networks, SDMDiameter, DRANick

Basics of DRAs

About

Hi, I’m Nick & I build networks. As a kid I was given an old rotary phone to play with and ended up creating my own mini exchange out of scrounged components. While my soldering iron burns have healed, my love of the tech hasn’t. So this blog focuses on telecommunications network engineering, from the … Continue reading About →

SCTP in Python

15/06/2019PythonPython, SCTPNick

I’ve written in the past about SCTP – Stream Control Transmission Protocol, talking about it’s advantages and how to implement it in Kamailio. If you’d like to write your own software using SCTP there’s a fantastic SCTP sockets library from P1 Security that makes this easy as any other socket programming. Take a look at … Continue reading SCTP in Python →

Setup HOMER SIP captagent and HEP processor on Ubuntu 18.04

21/04/2019Kamailio, Linux, VoIPCaptagent, HOMER, packet capture, SIP, VoIPNick

Installing the HEP Processor and SIP Captagent to capture SIP data and feed it to HOMER

Setup HOMER Web UI, API & DB on Ubuntu 18.04

21/04/2019Kamailio, VoIPCaptagent, HOMER, packet capture, SIP, VoIPNick

Installing HOMER Sipcapture Web UI, API & Database on Ubuntu 18.04

Magma – Facebook’s Open Source LTE / 4G EPC/OSS Platform

25/03/2019EPC, Linux, LTE, Mobile Networks, RF, SoftwareEPC, LTE, MagmaNick

In February Facebook announced they’d open sourced their Magma project, Magma provides a software-centric distributed mobile packet core and tools for automating network management. Open-sourcing Magma to extend mobile networks Magma’s modular software based architecture means you can scale up extra resources as needed, with no need to have physical hardware to run your EPC. … Continue reading Magma – Facebook’s Open Source LTE / 4G EPC/OSS Platform →