Retired proprietary intercom protocol

July 30, 2026 ยท View on GitHub

This document is retained only as a tombstone for old links.

The proprietary intercom wire protocol is no longer the project contract. It is not a compatibility layer and should not be used for new code, tests, YAML packages, cards, or tools.

The current contract is:

  • SIP signaling: INVITE, ACK, CANCEL, BYE, OPTIONS, and standard SIP status codes.
  • Dialog identity: Call-ID, From tag, To tag, CSeq, Via branch/rport, Contact, and route target.
  • SDP offer/answer for media negotiation.
  • RTP/UDP PCM media.
  • Public state via SipPhoneState.

Use docs/reference.md for configuration and service details.