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API

Realtime Call Webhooks

Realtime Call Webhooks

We recently introduced a number of webhooks, and realtime Call Control functionality allowing you to end calls in progress via the API.…

API Call Control

The Simwood API is great for provisioning and reporting as…

Intelligently Rejecting Nuisance Calls since 2014

Back in 2014, we launched Intelligent Call Rejection, a Simwood…

CDR Data Retention

One of the key principles of GDPR is Data Minimisation.…

Commercial

Carrier Services rate update (2024-03-14)

Carrier Services rate update (2024-03-14)

We will be updating our Managed A-Z Termination rates and codes on March 14th 2024. As usual, these changes are colour coded…

USA increments / tax / dialler

By Simon Woodhead On international traffic to the USA, via…

Are you going to ITW?

By Simon Woodhead It was great to catch up with…

Porting features (and skirmishes)

By Simon Woodhead One of our areas of focus at…

Intelligent Solutions

Maintenance windows tell you a lot!

Maintenance windows tell you a lot!

By Simon Woodhead There are different approaches to maintenance around our industry and they are very revealing, if not concerning, as to…

AI & carrier-side call recording

By Simon Woodhead We don’t normally go in for vapourware…

Be less shit!

By Simon Woodhead Avid readers may recall we warned about…

2023 – What a Year!

By Simon Woodhead It is customary for me to write…

IP Network

If the BBC did DDoS…

If the BBC did DDoS…

Comms Council UK just put out an e-mail to its members, saying one of its own has been suffering from a DDoS…

Hello Old Friend

By Charles Chance Manchester is back and it’s big, in…

New US Availability Zone

By Alex Lane Greetings, We are introducing a new availability…

Good news for AWS customers

By Simon Woodhead There’s a lot that goes on in…

Regulation

What is going on in the US?

What is going on in the US?

By Simon Woodhead I’ve always loved the US market because of its straightforwardness. One doesn’t have Regulators beating around the bush, making…

On STIR/SHAKEN, Ofcom nailed it. On spoofing….?

By Peter Farmer By now, you’ll be aware of a…

Sweden CLI blocking

By Simon Woodhead In keeping with a list of countries…

CLI Authentication: Central database boringness abounds (again!)

By Simon Woodhead TL;DR CLI authentication has some risks, some…

Security

3CX Warning

3CX Warning

By Simon Woodhead We’ve been made aware of a possible serious vulnerability within 3CX. We’re not in a position to confirm this…

STIR/SHAKEN update

By Simon Woodhead & Thomas Hadden TLDR: Regulations are getting…

Running Voice over the Public Internet

By Simon Woodhead Over many years I’ve been intolerant of…

Coronavirus (COVID-19)

By Simon Woodhead Given the news flow, we felt it…

Voice

Our stance on “dialler”

Our stance on “dialler”

By Peter Farmer Everyone at Simwood is very clear on the nuances of our policy towards diallers, having suffered me droning on…

Cause code changes

By Simon Woodhead We’ve made some changes to the way…

Norway CLI Restrictions

By Simon Woodhead In the latest act of the relentless…

Blocking spam calls

By Alex Lane TLDR: If your calls to the USA…

White Papers

Our VoIP Fraud presentation at LINX84

Our VoIP Fraud presentation at LINX84

We had the pleasure of speaking at the London Internet Exchange’s LINX84 meeting on February 17th regarding our VoIP Fraud research. Below…

Simwood VoIP Fraud Analysis – get your copy now

As regular readers will know, Simwood has operated a VoIP…

QoS for VoIP

Introduction QoS, or Quality of Service, is a term used…

Get your DNS in order!

With the Olympics ever closer and our warnings over commodity…