PBX / SIP · C · see repo
The classic PBX. Reach for it when there are real numbers and call flows.
Last push 2026-09-02 · 3512 stars at survey time. github.com/asterisk/asterisk
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.