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Delphi v0.9.15-patch3

Delphi Team
KI Kombinat GmbH

Delphi v0.9.15-patch3 raises the custom SIP header budget for managed hangup/transfer actions to the VoiceAI Connect 12,000-character limit, and ensures bot-triggered hangup still tears the call down when BYE headers exceed the budget.

Platformv0.9.15-patch3Recommended SDKv0.1.5Supported SDK range>=0.1.3 <0.2.0

Voice and SIP​

Outbound custom SIP headers (hangupSipHeaders, transferSipHeaders, and headers produced by outbound Channel Data Forwarding) now use:

  • 12,000 characters across custom header names and values (was a conservative ~532 UDP-derived clamp).
  • 64 custom headers and 4,096 characters per header value/line (unchanged).
  • RFC ~1,300 UDP-safe size estimates as a warning only.

Hangup no longer fails closed on over-budget BYE headers: Delphi drops the oversized custom headers (keeping Reason when possible) and still disconnects. Transfer continues to reject over-budget header sets before SIP signaling.

Operator signals​

SignalMeaning
runtime_command_rejected / Invalid runtime command payload (sipHeaders: …)Header set failed validation before execute.
hangup_headers_droppedHangup continued after dropping over-budget BYE headers.
hangup_successChannel disconnected (may include droppedOverBudgetHeaders).

See SIP header budget for the full limit table and troubleshooting guide.