Engineering
How we built business calling on Telnyx (and why we didn't roll our own SBC)
Why Hey Quad runs on Telnyx instead of bare metal - call control, SIP trunks, multi-tenant routing, and the trade-offs of building voice in 2026.
7 min read
Author
Marcus Williams
Engineering, Hey Quad
Telecom infrastructure engineer. Writes about SIP, call quality, multi-tenant architecture, and the hard parts of running voice on the modern internet.