Phone negotiates RFC4733 but may not actually send telephone-event
RTP packets. Inband detects DTMF from audio stream directly.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
AX83H may send DTMF as SIP INFO instead of RFC4733. Auto mode
accepts both, fixing button press detection in star code menus.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
from-twilio: Changed from Dial(PJSIP/100) to Stasis(flowercore-pbx,inbound-pstn)
so inbound calls go through the FlowerCore IVR workflow engine instead
of directly ringing extensions.
Added missing star codes: *43 (echo test), *80 (intercom), *88 (conference),
*41/*411 (directory). Added catch-all _*X. pattern for future star codes.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>