Open Source Alternative · Programmable Communications

Replace Twilio with Fonoster.

Open source programmable telecommunications. Voice, SMS, and video APIs with SIP trunking. Self-hosted, Docker-based, developer-friendly.

You're losing ~R10 800 to ~R55 200/year.

10-user estimate across 2 published tiers of Twilio.

Pricing approximated from vendor-advertised USD converted at current FX. Enterprise and negotiated pricing varies. Book a free audit for your exact number.

Twilio vs Fonoster

Typical ZAR pricing across published tiers of Twilio. Your open source alternative pays once. Setup cost. Then it runs free.

Twilio · Typical usage (startup)
~R900/mo
~R10 800/year (10 users)
Twilio · Growth
~R4 600/mo
~R55 200/year (10 users)
Your open source replacement
Fonoster. R0/month.

Open source programmable telecommunications. Voice, SMS, and video APIs with SIP trunking. Self-hosted, Docker-based, developer-friendly.

The migration, handled.

Downloading free software isn't the job. Running it in production is. That's the part we do.

Data migration

Export everything from Twilio, transform, and import cleanly into Fonoster. Nothing lost.

Parallel running

Old system stays live while the new one takes shape. Cutover only when you're ready.

Integration & SSO

Wire it into your existing email, auth, and payment stack. No isolated island.

Hardening & backups

POPIA-ready config, automated backups, monitoring, and patch management from day one.

Team training

Hands-on onboarding until your people are comfortable. Not a PDF they won't read.

Ongoing support

SLA-backed maintenance so you're not Googling error messages at 2am.

Three weeks from now, you could already have switched.

The audit is free. We'll give you a fixed-price migration quote, a timeline, and the risks, in writing. You decide from there.