SIP signaling reference
What Kamailio and TelSys log for SIP — capture points, methods (OPTIONS, CANCEL, PRACK), response codes (481, 487), and how records reach the Debug SIP ladder.
What Kamailio and TelSys log for SIP — capture points, methods (OPTIONS, CANCEL, PRACK), response codes (481, 487), and how records reach the Debug SIP ladder.
How Delphi queues TTS output in pipeline mode, plays multiple bot messages in order, and coordinates hangup with waitForSilence and delayBotDisconnectMs.
Asterisk (TelSys) plus the AI conversation engine (TelPhi) — operations, runbook, configuration, troubleshooting.