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.

Porting changes (inc. new policy)

By Simon Woodhead Update: Please see our FAQ on the below and our invitation to other operators. Two years ago we published our Porting Policy in an…

Redis woes / Letting the chaos monkies run free

By Simon Woodhead July was not a month we’re proud of for reliability and I feel you deserve some explanation. Let’s be clear though, I’m not using t…

CommCon 2018 – The AutoPilot Pattern

Coming to CommCon?

We mentioned CommCon last year and we know a number of you have signed up. It starts on Monday (25th June 2018) but there’s still a few tickets avail…

Anycast SIP

By Simon Woodhead It has been a few months since we let you know about an early alpha of our anycasted SIP proxy. We’ve been busy and now have this a…

LRN-based billing

As many readers will know, we’ve been a domestic operator in the USA as a licensed CLEC since 2017. North America benefits from enviably effective nu…

Cost comparison – send us your CDRs

By Simon Woodhead TLDR: Send us your CDRs from any other provider and we’ll give you a matrix showing what we’d have charged across all our pricing t…

GDPR Data Processing Addendum

One requirement of GDPR, under Article 28, requires that controllers (such as yourselves) may only appoint processors who can provide “sufficient gua…

Privacy Policy Update

We’ve updated our Privacy Policy to bring it into line with the requirements of the new General Data Protection Regulations (GDPR) but also make it a…

Kamailio World 2018 – The AutoPilot Pattern

Inbound Calls and Availability Zones

Many of our customers connect to us in multiple sites, using SRV and DNS to load-balance between their sites. We noticed, however, that some customer…

Inbound HTTP(S) API (“Webhooks”)

We currently have two APIs which send HTTP POST requests to customers; inbound fax, and inbound SMS. These have been in place for many years, and hav…