Straight-talking, in writing

The Simwood blog.

Telecoms, AI in the call path, network engineering and the occasional strong opinion. Several times a week since 2009.

Reference Architecture

We’ve long been very vocal on our thoughts of how best to architect an ITSP and published ‘Interop Information’ as a guide for interfacing with us. W…

Restoring Confidence in CLI

Ofcom recently published a new Guidelines for Calling Line Identification Facilities which includes amendments to the General Conditions and National…

Our book: “Speaking up on Telephony Risks”

It should be no surprise from our pioneering work around VoIP fraud or our efforts to persuade ITSPs and carriers to ‘give a shit’ about encryption,…

GDPR Consent

By Ross McKillop Unless you’ve been hiding under a rock for the last year or so, and especially the last few months, it’s been hard to miss GDPR and…

Improving DNS

We like to concentrate on what we’re good at, and therefore don’t run our own DNS or Mail services – relying on trusted external providers to provide…

Our Architecture and the AutoPilot Pattern

By Simon Woodhead Back at SimCon1, I presented the first overview of our architecture and how our interconnects, network, and platform operate to giv…

VoIP Fraud from the Carrier Perspective – Asterisk World at ITExpo 2018

We presented at ITExpo in fort Lauderdale. We were asked to present VoIP Fraud from the Carrier’s perspective, which was a great opportunity to summa…

Porting and a growing Operations Desk

We continue to see huge growth in our porting activities, since we first reported a huge imbalance in the number of ports in to Simwood versus out fr…

SimCon1 – Simple SIP Troubleshooting

Ross McKillop, Associate Director, presents an overview on troubleshooting SIP and preventing issues in the first place!

SimCon1 – Simwood Architecture (part 1)

Below is the recording of the first part of our architecture overview from SimCon1. Please note, a number of details and forward looking statements h…

SimCon1 – Simplifying Porting by Dan Tiller

Dan Tiller, our Operations Desk Supervisor, gave an insight to geographic number portability (GNP) at SimCon1. The video is below.

SimCon1 – Asterisk update by David Duffett

Our friend David Duffett of Digium and provider of Asterisk training gave a great talk on the Asterisk project at SimCon1. The video is below.