Notes from the communication layer

Practical writing on deliverability, channel strategy and enterprise messaging — from the team that runs the network.

Verified RCS message from a local business on a smartphone

Featured · Strategy

RCS in 2026: what enterprises should migrate first

Verified sender identity changes the economics of messaging. Here is a sequencing plan for moving OTP, transactional and promotional traffic to RCS without breaking fallback.

Coming soon

Deliverability

Seven causes of silent SMS failure

Route quality, sender IDs and template mismatch — diagnosed.

Coming soon

Engineer working beside enterprise server infrastructure

Operations

Send-time optimisation, measured honestly

What per-contact timing actually moved in a high-volume message test.

Coming soon

WhatsApp Business catalogue and product carousel on mobile

Building a catalogue that converts

Structure, media weight and reply flows for commerce templates.

Coming soon

API microservices and messaging queue architecture diagram

Engineering

Idempotency keys for high-volume sends

How to make retries safe when you are pushing a million per hour.

Coming soon

Compliance

Consent architecture for regulated sectors

Designing opt-in records that survive an audit.

Coming soon

Call centre agents and IVR desk phone options

Voice

When IVR beats a chatbot

Channel selection by intent complexity and customer age band.

Coming soon

Data centre and email delivery infrastructure

Warming a dedicated IP the boring way

A 28-day schedule that keeps you out of the spam folder.

Coming soon

Analytics

Attribution beyond last click

Modelling messaging influence across a 30-day window.

Coming soon