Replace the static prefix+extension numbering with random 6 digit box
numbers (100000-999999) signed by the machine's yggdrasil key. A serf
gossip cluster on yggdrasil port 7946 exchanges the signed records;
phonebox-sync verifies key -> address derivation and the signature and
writes the number -> address map to /run/phonebox/numbers for the
asterisk dialplan. Any yggdrasil node running the service can reach any
other; clan-core's ygg-input filter is opened for SIP, RTP and gossip.
Drop the server-prefix-number and ata-local-number vars, add a two-node
VM test that proves directory convergence and a call over yggdrasil.
kurogeek