Browser SIP client · TypeScript · MIT
MIT. ⚠️ Quieter than the rest — check before committing.
Last push 2026-06-15 · 2094 stars at survey time. github.com/onsip/SIP.js
Engineering and regulatory orientation, not legal advice. The FCC obligations named here are real and enforced; confirm your own position with counsel before carrying a single call to a phone number.