An inter-hackerspace phone network, built on SIP and IAX2.
dialbridge is a federated voice network connecting hackerspaces, makerspaces, and technically-minded individuals. It runs on open-source telephony (Asterisk), uses standard SIP so any VoIP client works, and is operated by volunteers.
Each participating space hosts its own Asterisk node and claims a numeric block
— like an area code. Nodes peer over IAX2 trunks. To reach an extension on
another node, dial 9 + their block code + their local extension.
| Block | Node | Operator | Directory |
|---|---|---|---|
235 |
235.nthmost.net | nthmost open registration | directory · get an extension |
415 |
Noisebridge (San Francisco) | Noisebridge infra | — |
From any registered extension, dial 9 + block code + local extension.
| To reach | Dial |
|---|---|
| 235 node — extension 333 (echo test) | 9235333 |
| 235 node — extension 415 (nb-status) | 9235415 |
| Noisebridge — echo test | 9415333 |
If you run Asterisk at your hackerspace and want to peer, get in touch. IAX2 trunk setup takes about 20 minutes. Pick an unclaimed block code (ideally your city's area code) and we'll add the routes.
Protocol: SIP/UDP port 5060, IAX2 for inter-node trunks
Realtime extensions: PostgreSQL via Asterisk ARA
Codecs: ulaw, alaw, opus
Software: Asterisk 20, Debian Linux