Project revival: TwoSquares is preserving GNU Telephony's history and preparing an open-source revival. Contributors and collaborators are welcome.
GNU Telephony
Open-source telephony, preserved and being revived

Documentation Hub

A structured index of historical technical documentation, protocol specifications, API references, and systems administration guides. All guides are cross-linked to their original canonical paths.

Architectural guides covering SIP Witch routing, registrar mechanics, and peer-to-peer SIP topologies.

Real-time Transport Protocol (RTP), jitter management, RTCP quality metrics, and IVR application servers.

End-to-end cryptographic key negotiation (RFC 6189), Short Authentication String (SAS), and SRTP security.

Historical installation procedures, init daemon scripts, XML configurations, and packaging records.

Deep dive into GNU Common C++ and GNU uCommon C++ for multi-threading, sockets, and memory pool management.

Pioneering decentralization initiatives seeking to replace proprietary telecoms with peer-to-peer software.