I just got ENUM lookups working with a client’s Asterisk setup. Very cool.

This is how it works:

1. My Asterisk takes the number you input “NNNNNNN”,
2. fully qualifies it to “1613NNNNNNN”,
3. a DNS lookup in e164.org and e164.arpa which returns sip:general@domain.ca,
4. an SRV query on domain.ca returns server.domain.ca,
5. the call is put through IP-to-IP without hitting any provider.

That is a beautiful thing.

A.