The software is easy. The stacks are mature, permissively licensed and actively maintained, and you could have members calling each other this month. The software is not the hard part — and the hard part is invisible from the code.
ships without touching the regulatory question at all, and coturn is what makes it actually connect for the ~20% of users behind symmetric NAT
radio.mjs already POINTS at broadcasters' own streams and never rehosts — this adds the ability to originate OUR OWN stream without changing that posture for theirs
⭐ the same carriers already priced for fax in doc-services.mjs — one account, both products, and the regulatory burden stays with them
⚠️ only if volume ever justifies it. E911 alone is a programme, not a feature.
You can — by reselling from a licensed carrier. Telnyx, Bandwidth and similar already hold the registrations and run the E911 plumbing, and a white-label arrangement leaves the regulatory burden with them. It costs margin, and it is how nearly every small phone app actually ships. ⭐ The same carriers are already priced for fax — one account, both products.
→ the three tiers, with the obligations listed
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.