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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 (2024-02-12)

Carrier Services rate update (2024-02-12)

We will be updating our Managed A-Z Termination rates and codes on February 12th 2024. As usual, these changes are colour coded…

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…

Sri Lanka basis change

By Simon Woodhead As a reminder, in our full rate…

Intelligent Solutions

Be less shit!

Be less shit!

By Simon Woodhead Avid readers may recall we warned about another of this industry’s dirty secrets in October 2022 – the “CPI+3.9%”…

2023 – What a Year!

By Simon Woodhead It is customary for me to write…

Canadian VoIP Fraud

By Simon Woodhead For the last 6 months or so,…

Teams and our strategic vision

By Simon Woodhead Heads-up: As I write this I’m hungry,…

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

Sweden CLI blocking

Sweden CLI blocking

By Simon Woodhead In keeping with a list of countries we’re now losing track of, Sweden has jumped on the CLI blocking…

CLI Authentication: Central database boringness abounds (again!)

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

TSRs and Encryption

By Simon Woodhead There’s a bogus narrative circulating that the…

Are you inadvertently enabling scammers?

By Pete Farmer We’ve mentioned it before, but it may…

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…