https://tapi.selbach.us/oauth/callbackhttps://tapi.selbach.us/webhookYour own Webex device rings first, then the destination (callback semantics).
Mints a device token (enrollment code required — printed in the relay console at startup).
The agent connects to ws://localhost:8385/agent with Authorization: Bearer <token>.
Pushes a synthetic call-event to connected agents — tests the WSS path before webhooks exist.
Registers one telephony_calls webhook (event all) at
https://tapi.selbach.us/webhook. Verified fail-closed (HMAC-SHA1), de-duped on the raw body hash,
then pushed to connected agents. (Enroll code required — these are admin actions.)