Move VICIdial agent/non-agent API and FreeSWITCH ESL connection settings
out of hardcoded POC values into environment variables so the same image
works against a PBX on another server.
Add VICIdial update_lead forwarding: X-VICI-UPDATE-LEAD_* extracted
variables are mapped to lead columns and pushed via the non-agent API
before a transfer, with reserved API-control params dropped.
Add hardcoded address3 disposition routing (Y/N -> in-group transfer,
else hang up) and a synchronous final variable extraction so the
transfer path sees the freshest conversation state. Skip upstream_pbx
capture on non-PJSIP channels to avoid Asterisk 500s.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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