Featured
More call tariff options (including NPA-NXX)
By Simon Woodhead Given our position of being a licensed CLEC in 21 States of the USA, and having numbering in 100% of the USA, as well as our evolution to a single ‘global platform’, we’ve introduced NPA-NXX billing. For those not familiar with the…
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Domestic focus, global outlook
By Peter Farmer TL;DR: We’re now members of the International Telecommunications Union and look forward to working with fellow members, Governments, regulators and other stakeholders on iterating standards to better our industry. We’re currently in the process of refreshing the website and tweaking the branding.…
Microsoft Teams Update
By Charles Chance I wanted to update you on our Microsoft Teams project because Phase 1 is nearly complete and we’ll be getting in touch with customers who have asked to test very soon! Firstly, what is Phase 1, or indeed any other Phase? Phase…
Latency Based Routing
By Simon Woodhead It has been too long since I got super excited about a new development, and couldn’t wait to tell you about it. That doesn’t mean we’ve been sitting around, it just means the development has been far more ‘business as usual’ and…
CLI Filtering Changes (or not!)
By Simon Woodhead Back in 2018 we had General Condition C6.6 (GC C6.6) introduced, requiring operators to ensure CLI was valid on the way in and out of the network, amongst other things. I remember it well as we implemented it fully per the Ofcom…
International Telecoms Week (ITW) 2023
By Simon Woodhead ITW takes place in Washington DC in mid-May and we’ll be there in force for the duration and a few days before. If any customers, peers or prospects want to meet with us either informally over a beer or for a private…
Hello Old Friend
By Charles Chance Manchester is back and it’s big, in fact it’s EPYC! Dad jokes aside, I have some exciting tales about flashing lights and shiny boxes to share.. In Simon’s 2022 ‘Christmas letter’ he mentioned how we’d been working on bringing up a new…
Are you risking your business with your carrier choice?
By Simon Woodhead Happy New Year! We find that the new year is traditionally the time when people like to dust-off relationships, reflect on the past year and put in place provision for the new. It (and the preceding quiet period) are a great time…
Head in the sand is no longer an option
By Simon Woodhead It has been a little while since I’ve opined on the Telecommunications Security Act 2021 and the all-important secondary legislation it enabled, the Electronic Communications (Security Measures) Regulations 2022. My most recent entry is to reiterate how these rules apply to even…
Carrier Services rate update (2023-09-25)
We will be updating our Managed A-Z Termination rates and codes on September 25th 2023. As usual, these changes are colour coded in our full rate files available through the portal as below. Unlike other operators, we are not passing on UK origin surcharges, relying…
Sri Lanka basis change
By Simon Woodhead As a reminder, in our full rate sheets you will find what we call the ‘minimum’ and ‘increment’ for each breakout. for the UK this tends to be 1 and 1, more colloquially referred to as ‘1/1’. This means that calls will…
API

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.…
Intelligently Rejecting Nuisance Calls since 2014
Back in 2014, we launched Intelligent Call Rejection, a Simwood…
Commercial

Carrier Services rate update (2023-09-25)
We will be updating our Managed A-Z Termination rates and codes on September 25th 2023. As usual, these changes are colour coded…
Our policy on “security questionnaires”
By Peter Farmer Simwood, like all networks and service providers…
Intelligent Solutions

Domestic focus, global outlook
By Peter Farmer TL;DR: We’re now members of the International Telecommunications Union and look forward to working with fellow members, Governments, regulators…
IP Network

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…
Regulation

CLI Authentication: Central database boringness abounds (again!)
By Simon Woodhead TL;DR CLI authentication has some risks, some seriously acute risks for our customers, so don’t let the naive and…
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
By Simon Woodhead We’ve been made aware of a possible serious vulnerability within 3CX. We’re not in a position to confirm this…
Voice

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…
White Papers

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…
Get your DNS in order!
With the Olympics ever closer and our warnings over commodity…